james neill and associates ltd. - new westminster · 2013. 4. 19. · canada games pool 65 east 6rn...

TENDER DOCUMENTS

CANADA GAMES POOL 65 EAST 6rn STREET

NEW WESTMINSTER, B.C.

WATER FILTRATION TANK

CONCRETE REPAffiS

Prepared for

CITY OF NEW WESTMINSTER

511 Royal Avenue

New Westminster, B.C.

V3L 1H9

Prepared by

JAMES NEILL AND ASSOCIATES LIMITED

Unit #128- 3989 Henning Drive

Burnaby, B.C.

Project Reference No.: 1168

V5C 6N5 Phone: 604-293-2300

Fax: 604-473-9599

Date: February 27, 2013

James Neill and Associates Ltd. CONSULTING ENGINEERS

Canada Games Pool Water Filtration Tank Concrete Tank Repairs February, 20 13

DESCRIPTION

TABLE OF CONTENTS

TECHNICAL SPECIFICATION

SECTION 01000 "SCOPE OF WORK" SECTION 01100 "GENERAL INSTRUCTIONS" SECTION 01500 "MOBILIZATION" SECTION 01505 "CONSTRUCTION FACILITIES" SECTION 01560 "ENVIRONMENTAL PROTECTION'' SECTION 01710 "CLEANING'' SECTION 02115 "DEMOLITION'' SECTION 03300 "CONCRETE REPAIR" SECTION 07520 "MISCELLANEOUS METALWORK"

DRAWINGS & DETAILS

DRAWINGNO. 1: DRAWING NO. 2: DRAWINGNO. 3: DRAWING NO.4, 5:

FOUNDATION PLAN DRAWING FILTRATION TANK PLAN DRAWING FILTRATION TANK ELEVATION DRAWINGS GENERAL CONCRETE REP AIR DETAILS

Page 1 of 1

#of pages

2 10 1 5

1 1 6 9

5

James Neill and Associates Limited CONSULTING ENGINEERS

Canada Games Pool Water Filtration Tank Concrete Tank Repairs February, 2013

1.0 LOCATION:

SCOPE OF WORK

.1 The project location is 65 East 61h Avenue, New Westminster, B.C.

2.0 PROJECT SCHEDULE:

Section: 01000

Page 1 of2

.1 Canada Games Pool shutdown period is from August 12, 2013 to October 4, 2013. The Contractor shall mobilize on site on August 13, 2013 and be completely demobilized by September 27, 2013. The shutdown schedule is not flexible. The Contractor shall make every effort to complete the work by September 27, 2013 and provide all necessary shift work and weekend work to ensure completion at no additional cost to the Contract.

2.0 PROJECT DESCRIPTION

.1 The Canada Games Pool water filtration tank is a cast-in-place, conventionally reinforced concrete structure. The base of the tank is on grade. Normal weight concrete was used for the concrete structure. A suspended floor deck in the tank room surrounds the top of the tank on three sides. The deck consists of a structural steel frame with fibreglass deck panels.

3.0 SCOPE OF WORK

.1 On-going corrosion of concrete reinforcement has delaminated large sections of the filtration tank walls. Concrete repairs are required to re-instate the structural integrity of the tank walls. Minor concrete repairs to the adjacent roofbeam support base and perimeter walls in the filtration tank room are also required .

. 2 Scope of work includes:

- Removal of the fibreglass deck floor, kickboards, handrails, metalwork and motors necessary to access repair areas.

- Provide dust protection for all mechanical and electrical fixtures. Hoard room to prevent dust infiltration into adjacent rooms.

- Remove and re-install eyewash station. - Protect stainless steel pipes for hanging filter bags in the pool tank. - Build false floor to protect tank floor pipes. - Conduct concrete repairs in designated areas. - Install cementitious coating on the interior surfaces of the tank walls. - Re-install deck metalwork and fibreglass flooring. - Deck guardrails are to be removed, re-cast into the top of the concrete wall and re-

painted.


Canada Garnes Pool Water Filtration Tank Concrete Tank Repairs February, 2013

SCOPE OF WORK Section: 01000

Page 2 of2

.3 The above represents a brief summary of the project. The Contractor shall refer to the tender documents, specifications and drawings for a complete definition ofthe project requirements.

END



GENERAL INSTRUCTIONS

1.0 GENERAL REQUIREMENTS:

Section: 01100

Page 1 of 10

.1 Section 01100 11 General Instructions 11 shall be deemed to be part of all sections of the specifications and shall be read in conjunction therewith .

. 2 In addition to general responsibility for the complete work, and unless specified otherwise, the Contractor shall be specifically responsible for general work items specified in this division.

2.0 CONTRACTOR'S RESPONSIDILITIES AND CONTROL OF THE WORK:

.1 Before commencement ofthe works, the Contractor shall submit to the Consultant for his approval a program showing the order of procedure and methods by which he intends to complete the works by the required date stated on the Tender. The submission to and approval of the Consultant of such program, or the furnishing of such particulars shall not relieve the Contractor of any of his duties or responsibilities under the Contract.

.2 The Contractor shall conduct his operations so as to cause the minimum obstruction and inconvenience to pool maintenance staff during the course of the work. No greater quantity of work shall be undertaken at any one time than can be properly conducted with due regard for the rights and interests of the public as may be determined by the Consultant.

. 3 The Contractor is to provide safe, satisfactory and convenient means of approach and entrance to adjoining lanes, driveways, buildings and property both for vehicles and pedestrians wherever necessary in the opinion of the Consultant.

.4 During all phases of the operation the Contractor shall take precautions to abate nuisance caused by mud or dust by clean-up, sweeping, sprinkling with water, or other means as necessary to accomplish results satisfactory to the Consultant.

. 5 The Contractor shall not deposit any material upon any street, sidewalk, boulevard, or other property, without the Consultant's permission, nor shall he allow the same to remain longer than necessary. All surplus spoil and rubbish and other waste material shall be removed from the site so that the area of work is cleaned up and restored to as clean a condition as it was before the Contract started, within four days of the Consultant's written request to do so, failing which the Owner may carry out the work or have the work carried out by others and recover the costs from the Contractor or may deduct the cost from any monies due or that may become due to the Contractor .

. 6 The Contractor shall erect hoarding, dust screens and other temporary structures around the work area to protect pool maintenance staff and other Trades conducting maintenance work




Section: 01100

Page 2 of10

in the pool facility during the course of the work. Temporary structures must be approved by the Consultant/Owner.

3.0 SUBMITTALS

3.1 PRE-CONSTRUCTION SUBMITTALS

.1 The following submittals shall be provided by the contractor for the Consultant's review within 7 days of award of the contract:

Construction Schedule Proof oflnsurance (see General and Supplementary Conditions) Workers Compensation Letter of Standing New Westminster Business Licence

3.2 SUBMITTALS FOR SUBSTANTIAL PERFORMANCE

.1 The following submittals shall be provided by the contractor for the Consultant's review upon the Contractor's application for Substantial Performance of the Contract:

- Final inspection certificates from the authorities having jurisdiction. - Deficiency list, complete with a cost estimate ofthe value of remaining deficiencies. - Record Set Drawings - one set of white print working drawings neatly marked up in red

indicating any as-built conditions that vary from the original drawings. - Data Manuals (if applicable)- 1 copy, typed 8.5 x 11 format, submitted in 3 ring hard

cover binder and one digital copy including the following: - List of Subtrades - Shop drawings - Warranties

4.0 SUPERINTENDENCE:

.1 The superintendent or designated site foreman shall be on site full time to control the work in progress. The designated site foreman shall meet the same requirements as defined in Clause 2.2 and 2.3 ofthis section .

. 2 The Contractor shall, upon the request of the Consultant, remove any Superintendent who, in the opinion of the Consultant or Owner, is incompetent or has been conducting himself improperly and shall forthwith designate another Superintendent who is acceptable to the Consultant and Owner.




Section: 01100

Page 3 of 10

.3 The Contractor shall not substitute a Superintendent without the written consent of the Consultant and Owner.

5.0 LABOUR AND PRODUCTS:

. 1 All work shall conform at least to the minimum requirements of the Contract Documents, the B.C. Building code, City ofNew Westminster by-laws, the rules and customs ofbest trade practice. Best trade practice means practice of the industry and not necessarily "local practice" .

. 2 Materials shall be delivered, stored, handled and applied in strict accordance with manufacturer's instructions and shall be delivered with type, grade, and brand name clearly identifiable and seals intact.

6.0 DIVISION OF SPECIFICATIONS:

. 1 For convenience, the specifications have been divided into approximate trade sections. These sections do not, however, limit the responsibility of any Trade, Subcontractor or Supplier. The Contractor shall define and co-ordinate the extent of work of each Subcontractor and shall arbitrate any dispute between Subcontractors regarding limits of responsibility.

7.0 PRE-CONSTRUCTION CONFERENCE

. 1 The City shall advise the Contractor of the time and location of a pre-construction meeting that shall be attended by representatives of the Contractor and his trades prior to the start of any construction of this contract. Review of the site conditions, scheduling, and the like may be carried out.

8.0 SITE MEETINGS

. 1 The Contractor shall coordinate, and attend regular site meetings at such intervals as may be deemed necessary for the purpose of coordinating and expediting the progress of the work.

.2 These meetings will be attended by the City or its authorized representative as and when required. The Contractor agrees to attend in person or send his authorized representatives to any such meetings that may be called for by the City. The Contractor's Subcontractors shall attend as required to expedite the Work. The consultant shall record and distribute the minutes.




9.0 CONSULTATION WITH OWNER

.1 The Contractor shall contact the Consultant immediately:

Section: 01100

Page 4 of 10

- For clarification regarding the Contract Work should he require information in addition to what is provided in the Contract Documents.

- If any conflicts or inaccuracies be discovered in the Contract Documents.

- If any site conditions become apparent that require revisions to the project design and Contract Documents.

- For coordination and approval for shutdowns ofbuilding systems. Shutdown ofbuilding systems during normal working hours is prohibited.

10.0 CO-ORDINATION & CO-OPERATION:

.1 Co-ordinate the work of all trades with efficient and continuous supervision and be fully aware of the requirements of every section of the Specifications .

. 2 The responsibility as to which Subtrade provides required work to be built-in or supplied rests entirely with the Contractor. Differences in interpretation of the Specifications or Drawings as to which trade shall provide certain work shall not be grounds for payment of extras .

. 3 Co-ordinate the use of construction plant and equipment and access, including cranes, hoists, ladders, scaffolds, etc., with the work of the various trades. The cost of such use by the various trades is subject to whatever arrangement exists between the Contractor and the trades .

.4 Co-ordinate the work of each trade to ensure that such work is consistent with the requirements for the work of all trades. Before commencing work, each trade must report to the Contractor any inconsistency between the work of another trade and the requirements for their work. Any cost incurred by the Contractor or trades to rectify such inconsistencies is included in the Contract Price .

. 5 The Contractor shall co-ordinate the work ofthe various trades and personnel to minimize the spread of dust and dirt to eliminate the possibility of damage to the work of other trades. All work damaged is to be made good by the trade responsible.



11.0 CLAUSES:


Section: 01100

Page 5 of 10

.1 Scope clauses may be included in the various trade sections for ease of reference. They shall not be interpreted as limiting the work included in those sections.

12.0 DAILY DIARY:

.1 From the date of commencement of the work, maintain a careful daily record of the progress of the work, with all applicable trades listed. This record shall be open to the Consultant's inspection at all reasonable times .

. 2 The diary shall record all pertinent data such as:

(1) Daily weather conditions, including temperatures. (2) Commencement, progress and completion of various portions of the work. (3) Dates of all site meetings. (4) Dates ofvisits or inspections by government authorities, inspectors, utility companies

and any other visitors to the site. (5) Record of work force employed. (6) Information required by Contractor or Subcontractor. (7) Materials or unforeseen conditions causing delay. (8) Actions or events causing delay. (9) Clarifications or questions.

13.0 PERMITS & REGULATORY REQUIREMENTS:

.1 Conform to the codes, ordinances, regulations and orders of all authorities having jurisdiction on the performance of the work. Should conflicts arise between one document or authority and another, obtain clarification from the Consultant before proceeding with the work.

.2 Submit to the Consultant during construction and upon completion ofthe work all certificates of inspection provided by authorities having jurisdiction .

. 3 The Contractor shall be responsible for any permits required for completing the scope of work outlined in the contract documents. A building permit is required for this work. The building permit will be arranged and paid for by the City ofNew Westminster.



14.0 LABOUR:


Section: 01100

Page 6 of 10

.1 Maintain good order and discipline among employees engaged on the work and do not employ on the work any unfit person nor anyone not skilled in the task assigned to him .

. 2 Maintain on the work as large a labour force in the various trades as can be used with efficiency and consistent with the agreed construction schedule.

15.0 SIGNS:

.1 The Contractor shall control the use of signs. Signs or advertising shall not be placed on site without the written approval of the Consultant and the city ofNew Westminster.

16.0 PUBLICITY:

.1 All publicity relating to this project is subject to the approval of the Owner and no mention of the project in advertising or articles in any publication will be permitted unless cleared through the Owner. Publicity or advertising implying endorsement of a product by the Owner will not be permitted.

17.0 USE OF SITE & PREMISES:

.1 Confine apparatus, the storage of materials and the operations of workmen to designated limits of the work as indicated on the drawings and as required by laws, ordinances, permits or by direction of the Consultant and do not unreasonably encumber the site with materials.

18.0 WORK AREAS:

.1 The limit of the work of the contract is designated on the drawings. The work and the operation of vehicles and machinery, storage of equipment, materials and/or supplies must be contained within designated areas. If necessary, additional area required for materials and equipment storage shall be coordinated with the Owner's representative .

. 2 If revision ofthe work area limits becomes necessary for any compelling reason, contact the Consultant immediately and do not disturb additional area without authorization by the Consultant.



19.0 TEMPORARY SUPPORTS


Section: 01100

Page 7 of10

.1 The Contractor shall be responsible for all temporary supports, bracing, or similar structural work as may be required during the carrying out of the Contractor W ark.

20.0 PROTECTION OF THE PUBLIC AND OTHERS

.1 The Contractor shall take adequate measures to protect the public, City ofNew Westminster staff, and others on site from injury, damage, or other loss resulting from construction and related activities. Included within the Contractor's work are hoarding, signage, and similar items appropriate for construction conditions and the progress of the job. The City shall have complete jurisdiction over entry of contractor's workmen and vehicle access to site and existing buildings. Building access arrangements shall be made in consultation with City staff.

21.0 MAINTENANCE OF EXISTING FACILITIES:

.1 Conduct operations with minimum interference to adjacent public or private roadways, sidewalks and access facilities. Keep such areas free of materials, debris and equipment at all times. Maintain proper access to building at all times .

. 2 The Contractor shall become acquainted with the location of all building exit doors and stairways on site and ensure that they are kept completely clear and unobstructed at all times in order that the buildings can be evacuated immediately in case of :fire or other emergency.

22.0 PROTECTION OF EXISTING FACILITIES:

.1 Take all necessary precautions to adequately protect all existing finishes and areas immediately adjacent to the construction site. All damage shall be made good by replacing damaged areas with exact duplicates of existing to the approval of the Consultant and the Owner .

. 2 Make good, at no expense to the Owner, any damage or disruption caused to the adjoining property, utilities and services not called for as part of the work of this contract. All repair work shall only be done after consultation with the Consultant, appropriate parties and authorities and to standard and codes ofthe authorities having jurisdiction .

. 3 Making good means restoration to at least original condition in terms of strength, safety, workmanship and appearance.


Canada Games Pool Water Filtration Tank Concrete Tank Repairs February, 20 13

23.0 RECTIFY DAMAGES


Section: 01100

Page 8 of 10

.1 Make good any damage or spillage to adjacent buildings, areas, grounds, or vehicles at no cost to the City and leave the site in the same state as it was prior to commencement of the contract and to the satisfaction of the City. All work shall be carried out so as to ensure the minimum interference with normal use of public spaces and facilities.

24.0 OCCUPANCY OF THE WORK:

.1 The pool will be shutdown for maintenance and repairs. The Owner will require continued use of the adjacent rooms and facilities during the shutdown. The water filtration room will be closed and designated as the construction site. Provide access to areas surrounding the designated work areas during the course of the work. Coordinate work and storage areas with the Owner .

. 2 Such use of the premises and site or part thereof shall not be construed as final acceptance of the work or any part thereof. Nor shall it be construed as an acknowledgment of the partial or substantial completion ofthe Contract, or any part thereof.

.3 Parking is available on site. Parking must be coordinated with the Owner.

25.0 SECURITY

.1 The Contractor shall be responsible for the security of the job site building as related to the Work. Comply with all fire regulations during the period of construction. Leave no portion of existing buildings' unlocked after public visiting hours at any time. Coordinate with the City as necessary. Except for designated public entrances, all other doors will remain locked at all times.

26.0 HOURS OF WORK:

.1 Contractor shall carry out all work from 7:00AM thru 5:00PM, Monday through Sunday. Coordinate schedule with City staff. Schedule must be approved prior to commencing work. NO WORKERS CAN BE ON SITE OUTSIDE OF PRE-APPROVED HOURS.

27.0 QUALITY OF WORK

.1 Workmanship shall be of the highest quality. When not specified elsewhere, work shall be done in accordance with recognized trade standards and according to product manufacturers' recommendations.



28.0 REJECTED WORK


Section: 01100

Page 9 of 10

.1 Defective work whether the result of poor workmanship, use of defective products or damage through carelessness or other act or omission ofthe Contractor, shall be removed from the site by the Contractor and replaced and I or re-examined promptly in accordance with the Contract Documents at the Contractor's expense.

29.0 CONTRACTOR CLOSEOUT

29.1 FINAL ACCOUNTING

Final statement of account - submit to Owner reflecting all adjustments and the following:

1. Original Contract Sum. 2. Additions and deductions resulting from:

- Change Orders - Unit Prices - Other adjustments - Deductions for uncorrected work

3. Total Contract sum as adjusted. 4. Previous payments. 5. Sum remaining due. 6. The City retains the right to obtain proof of payment of all subtrades and material

suppliers from the Contractor prior to making final payment.

29.2 PROJECT CLOSEOUT

1. Flush clear all drains affected by the work. 2. Clean site of all materials and debris created by the Construction. 3. Submit written acceptance that utility companies have inspected services to their

satisfaction. 4. Provide Consultant with all Warranty and Bond Certificates with:

- The proper name and address of the Owner and of the Project. - The date the warranty commences, which corresponds to the date of Substantial

Performance. - A clear statement of what is being warranted as referenced in the Specifications. - The signature and/or seal of the company issuing the warranty, countersigned by

the Contractor. 5. Attend a final walk-through with the City and Consultant to identify final deficiencies.




Section: 01100

Page 10 of 10

6. Make good all known deficiencies in the work and notify the Consultant of readiness for final inspection only after completion of these items.

7. The Consultant will review completion of deficiencies during one review only. Additional reviews required to check un-rectified deficiencies or incomplete work will be backcharged by the Owner on the Contractor's progress payments and paid from those funds

30.0 SPECIAL INSTRUCTIONS

.1 Smoking is not permitted in or on the premises at any time.

31.0 WASTE MANAGEMENT

All waste shall be removed from the site for disposal within 24 hours after demolition. - Waste bins shall be located so as to not interfere with the normal operations of the

building.

- Unless otherwise specified, salvaged material resulting from the Work shall become the property of the Contractor who must dispose of it away from the site. Separate recyclable and toxic waste materials from the waste stream. Deliver to a local waste management facility.

END



1.0 GENERAL

MOBILIZATION Section: 01500

Page 1 of 1

.1 Mobilization includes preparatory work and operations including, but not limited to, those

necessary to the movement of personnel, equipment, supplies and incidentals to the project

site; and all other work and operations which must be performed or costs incurred prior to

beginning work on the various items on the project site. Include an allowance in the Unit

Rates and Lump Sum Prices for providing hoarding and protection of electrical and mechani

cal fixtures during the course of the Work.

.2 Demobilization includes cleanup work, dismantling and removal of hoarding and operations

including but not limited to, those necessary to the removal of personnel, equipment, and

incidentals from the project site.

1.1 PAYMENT

.1 Payment for mobilization will be made at the Lump Sum Prices shown in the Tender Form.

These prices shall include demobilization. The total cost of mobilization shall not exceed 20%

of the total tender cost. Fifty percent (50%) of the lump sum price will be paid on the first

progress payment certificate. The remaining 50% will be paid upon completion ofthe

contract and removal of equipment and cleanup of the work areas to the satisfaction of the

Consultant/Owner.

END


Canada Games Pool Water Filtration Tank Concrete Tank Repair February, 2013

CONSTRUCTION FACILITIES

Section: 01505

1.0 REQUIREMENTS INCLUDED

- Installation and removal of construction facilities. - Barriers. - Construction safety. - First Aid & WHMIS. - Environmental controls. - Use of the work. - Traffic control/parking. - Utilities. - Protection. - Storage.

2.0 INSTALLATION/REMOVAL

.1 Provide construction facilities and temporary controls in order to execute the work expeditiously .

. 2 Remove from site all such work after use.

3.0 BARRIERS

3.1 HOARDING

Page 1 of5

.1 Provide, maintain and relocate hoarding as required to provide access to the site and to protect the public, workers, public and private property from injury or damage. The design of such hoarding shall be to the requirements of the local authorities having jurisdiction.

3.2 GUARD RAILS & BARRICADES

.1 Provide, maintain and relocate as necessary all perimeter guard rails and/or barricades to the building. Such protection will be to the requirements of the WorkSafe BC, and Good Construction Safety Practice .

. 2 Remove and replace such guard rails and barricades, to accommodate the Work.

.3 Provide, maintain and adjust any other guard rails, barricades or safety platforms required by law and authorities having jurisdiction for protection of the Work and the workmen and for protection ofthe public.


Canada Games Pool Water Filtration Tank Concrete Tank Repair February, 20 13


Section: 01505

Page 2 of5

.4 Provide, erect, and maintain adequate temporary barricades, warning signs, and lights for the protection of the public at all closures, detours, and points of danger where the Work occurs outside the hoarding area. Such protection shall be to the requirements oflocal authorities having jurisdiction.

4.0 CONSTRUCTION SAFETY

.1 Be solely responsible for all safety measures in connection with construction means, methods, techniques, sequences and procedures as Prime Contractor for the project.

.2 Comply with all applicable laws and regulations ofFederal, Provincial and Municipal authorities concerning construction safety .

. 3 Comply with the WorkSafe BC Accident Prevention Regulations of British Columbia (latest edition) and provide all necessary safety requirements as prescribed by the regulations for the Work.

. 4 Take precautions to prevent the overloading of any part of the structure during the progress of the Work, make good any damage and any claim resulting from such overloading .

. 5 No load bearing members shall be cut, drilled or sleeved without the written approval of the Consultant.

5.0 FIRST AID AND WHMIS

.1 Provide first aid facilities, to requirements ofWorkSafe BC Board ofBritish Columbia .

. 2 Arrange for the provision of an accident prevention program to the requirements of the WorkSafe BC .

. 3 Subcontractors shall comply with the requirements of this accident prevention program and shall co-operate with the Contractor in its execution .

.4 Provide all necessary signs and maintain on site a register and copies of all Material Safety Data Sheets (MSDS's) as required under Work Place Hazardous Materials Information System legislation (WHMIS) .

. 5 Ensure all employees likely to handle or come in contact with hazardous materials have received appropriate WHMIS training.




Section: 01505

Page 3 of5

. 6 The contractor will be required to undertake the role of "Prime Contractor" and will be required to sign a City ofNew Westminster designation form in this regard. In addition, the contractor is to meet on site with the City's representative to review "Owners known hazards" and a pre-job communication checklist.

6.0 ENVIRONMENTAL CONTROLS

6.1 DUST TIGHT SCREENS

.1 Provide dust tight screens or partitions to localize dust generating activities, and for the protection ofworkers, finished areas ofWork and the public .

. 2 Maintain and relocate protection until such Work is complete.

6.2 NOISE ABATEMENT

.1 Comply with the requirements of local municipal bylaws regarding noise abatement and take all necessary steps to ensure the generation and transmission of noise and vibration due to the Work is kept to a minimum.

7.0 USE OF THE WORK

7.1 SITE STORAGE/LOADING

.1 Confine the Work and the operations of employees to areas designated by the Owner. Do not unreasonably encumber the site with equipment or products .

. 2 Do not load or permit to be loaded any part ofthe Work or existing structures with a weight or force that will endanger the Work.

8.0 ACCESS TO SITE

.1 Provide and maintain access roads, sidewalk crossings, ramps and construction runways as may be required for access to the Work.

.2 Locate proper access to the site for delivery of materials .

. 3 Comply with traffic restrictions, of local authorities having jurisdiction and approved site ingress and egress locations, use of sidewalks, street access, use of parking and delivery facilities, etc., relevant to this contract.




Section: 01505

Page 4 of5

.4 Maintain access for fire trucks during the construction period to the satisfaction of local authorities having jurisdiction .

. 5 Keep adjacent driveways, walkways and roads clear at all times.

9.0 UTILITIES

9.1 SANITARY FACILITIES

.1 Sanitary facilities will be provided on site by the Owner.

9.2 ELECTRICAL POWER AND WATER

.1 The City shall provide, at no cost to the Contractor for the related work, the following: Cold water Electrical power (for small tools only)

The Contractor is responsible for establishing temporary power and water requirements for the Work including any modification of the existing supply. Access to existing power and water required for the project must be coordinated with the Owner. Any damage caused to existing services during use by the Contractor shall be repaired by the Contractor at no cost to the Owner. If additional power is required for the work, include the cost of additional power in the Unit Rate/Lump Sum Prices for the work.

.2 All other utilities and/or services required by the Contractor shall be the responsibility of the Contractor.

11.0 PROTECTION

11.1 PROTECTION FOR OFF-SITE & PUBLIC PROPERTY

.1 Protect surrounding private and public property from damage during performance ofWork.

.2 Be responsible for any damage incurred.

11.2 FIRE PROTECTION

.1 Provide and maintain temporary fire protection equipment during performance ofWork required by insurance companies and local authorities having jurisdiction, and governing codes, regulations and bylaws.




Section: 01505

Page 5 of5

.2 Take all necessary precautions to eliminate fire hazards and instruct the Site Superintendent to make periodic inspections to ensure proper preventative measures are being complied with by all personnel working on the site .

. 3 Should the contractor need to shut down the fire alarm system, the contractor will be responsible for instituting a fire watch of all building areas at his cost, in accordance with the BC fire code and requirements ofthe New Westminster fire department.

11.3 SECURITY

.1 Be responsible for security as required to suit construction progress and for watching the site .

. 2 Designate certain areas ofthe site to be used as temporary lockfast stores .

. 3 Neither the Consultant nor the Owner will be responsible for any loss or damage to materials, equipment or other property ofthe Contractor.

END


Canada games Pool Water Filtration Tank Concrete Tank Repair February, 2013

1.0 GENERAL

1.1 FIRES

ENVIRONMENTAL PROTECTION

.1 Fires and burning of rubbish on site is not permitted.

1.2 DISPOSAL OF WASTES

.1 Do not bury rubbish or waste materials on site .

Section: 01560

Page 1 of 1

. 2 Do not dispose of waste or volatile materials, such as solvents, mineral spirits, oil or paint thinners into waterways, storm or sanitary sewers .

. 3 Remove all wastes from site and dispose of in accordance with local ordinances and regulations.

1.3 DRAINAGE

.1 Provide temporary drainage and pumping as necessary to keep excavations and site free from excess water .

. 2 Do not discharge water containing suspended materials into waterways, sewer or drainage systems .

. 3 Control disposal of runoff of water containing suspended material or other harmful substances in accordance with local authority requirements.

1.4 POLLUTION CONTROL

.1 Control emissions from equipment and plant to local authorities emission requirements .

. 2 Prevent blast grit, pressure washing and other operations contaminating air beyond application area, by providing temporary enclosures or screens .

. 3 Cover dry materials and waste to prevent blowing dust and debris.

END



1.0 GENERAL

CLEANING Section: 01710

Page 1 of 1

.1 Conduct cleaning and disposal operations to comply with local ordinances and antipollution laws .

. 2 Store hazardous or volatile wastes in covered metal containers and remove from site daily to approved disposal facilities .

. 3 Prevent accumulation ofwastes which create hazardous conditions .

.4 Do not dispose of waste or volatile materials, such as mineral spirits, oil or paint thinners into waterways, storm or sanitary sewers.

1.1 MATERIALS

.1 Use only cleaning materials recommended by manufacturer of surface to be cleaned and as recommended by cleaning material manufacturer.

1.2 CLEANING DURING CONSTRUCTION

.1 Maintain project site, storage, parking, and office premises and public properties free from waste materials, rubbish, and debris .

. 2 Provide on-site containers for collection ofwaste materials and rubbish .

. 3 Remove and dispose of waste materials and rubbish at disposal sites obtained by Contractor.

1.3 FINAL CLEANING

.1 Clean lighting reflectors, lenses, and other surfaces .

. 2 Broom clean or pressure wash paved surfaces; rake clean other surfaces of grounds .

. 3 Clean all construction slurry and waste from catch basins and drains .

.4 Remove and dispose of all debris and surplus materials to appropriate disposal sites, obtained and paid for by the Contractor.

END



1.0 GENERAL

DEMOLITION

1.1 RELATED WORK SPECIFIED ELSEWHERE

.1

.2

.3

Environmental Protection Concrete Repair Miscellaneous Metalwork

1.2 SCOPE OF WORK

Section: 02115

Page 1 of 6

Section 01560 Section 03300 Section 05500

.1 Provide all labour, materials, services and equipment necessary and incidental for completion of demolition work as part of the concrete tank repairs shown or indicated on the Drawings or specified herein. The following summarizes the work included

Concrete Tank, Perimeter Wall and Roof Truss Support Base Repairs:

Remove and dispose of2" to 3" (50 to 75 mm) of existing concrete in designated areas to remove delaminated concrete and expose corroded reinforcing. Provide a minimum of3/4" clearance around exposed reinforcing where more than 1/3 the diameter of the bar is exposed .

. 2 Completely hoard the water filtration room to complete demolition and repairs. Hoarding must be dust tight to prevent dust from escaping into adjacent rooms. Provide negative pressure fans to contain dust during dusty operations .

. 3 Remove any miscellaneous items encountered within the area to be demolished .

.4 Saw cut perimeter of demolished areas. The Contractor shall be responsible for re-locating electrical or mechanical fixtures to complete necessary repairs. Notify the Consultant if any mechanical systems or fixtures require removal. Co-ordinate removal of mechanical systems with Pool Manager .

. 6 Provide and install all necessary hoarding, screens, barricades, chutes, dust and noise control measures. Protect all electrical and mechanical fixtures in the water filter room and tank. Damage to any fixtures resulting from the Contractor's operations will be repaired at no cost to the Owner .

. 7 Install temporary decking in the filtration tank to protect all cast iron piping at the bottom of the tank



DEMOLITION Section: 02115

Page 2 of 6

. 8 Remove stainless steel filter bag hangers in the filter tank and save. Re-install when work is complete. Alternately, hangers may be left in place if they are well protected from damage during repairs .

. 9 As it is necessary to carry out the Contract Work, areas of cutting, removal, or opening up of exiting floors, walls, ceilings, or other existing site or building areas shall be fully restored to match the previously existing conditions or adjacent existing conditions in construction and finish. Obtain written approval from the structural engineer, retained and paid for by the contractor, prior to cutting, coring and/or drilling into building structural elements.

1.3 JOB CONDITIONS

.1 Excessive or unnecessary disruption of maintenance and repair operations during the pool shutdown must be avoided. Area closures, sequence of demolition and agreed schedule will be defined prior to mobilizing on site and must be strictly adhered to .

. 2 Schedules for work must be coordinated with the Owner and may not be altered without prior approval of the Owner .

. 3 Access to water to be arranged by the Contractor and coordinated with the pool maintenance staff .

.4 Storage of equipment and materials when not in use must be co-ordinated with the Pool Manager.

1.4 PROTECTION

.1 Provide and maintain all legal and necessary guards, railings and warning signs during the execution of the work to fully protect all persons and Owner from loss, damage, death or injury through the neglect, carelessness or incompetence of the Contractor or his employees or the condition or handling of equipment.

.2 Enforce all applicable construction safety standards required by the B.C. Building Code, Worksafe B.C., and Municipal codes and statutes .

. 3 The Contractor shall assume full responsibility for the design and adequacy of any temporary shoring and/or bracing required during demolition.




Page 3 of 6

.4 It is the Contractor's responsibility to assure that the methods and equipment used to demolish the various areas do not exceed the safe loading capacity of the structure or cause unnecessary damage to sections of the structure which will form part of the finished work.

1.5 EQUIPMENT

.1 General: All equipment shall be a type suitable for its intended use. Equipment shall be

selected to minimize damage to existing members which shall form part of the completed work. In addition, all equipment shall be acceptable to the Engineer and shall be kept in good working order.

.2 Maintain an inventory of parts on site to ensure continuous operation of equipment. The equipment must be capable of working 12 hours per day with a minimum of 80% on the job production capabilities .

. 3 Primary and secondary removal of concrete around reinforcing steel and in areas where

structural damage may occur shall be conducted using pneumatic or electrical chipping hammers not exceeding 7 kg class.

1.6 CONTRACTOR AND PERSONNEL EXPERIENCE

.1 Demolition personnel shall have a minimum of 5 years experience on similar type work. The Consultant may request a written list of reference projects completed to date along with contact names and telephone numbers prior to allowing the demolition contractor to mobilize on site.

2.0 EXECUTION

2.1 GENERAL

. 1 The essential details and dimensions of the existing structure are shown on the Drawings for

the information of the Contractor in establishing the methods and limits of removal and determining the cost of the work from his examination of the site. The contractor shall verify the site dimensions prior to proceeding with the work.

.2 At least seven (7) working days prior to the scheduled commencement of any demolition and removal work, the Contractor shall submit to the Consultant details of the proposed equipment, schedule, shoring design, and sequence and methods of removal for review and approval. No demolition and removal work shall commence without prior written approval of the Consultant.




Page 4 of 6

.3 All material demolished and removed shall become the responsibility of the Contractor except as otherwise indicated herein and on the Drawings .

.4 The Contractor shall promptly remove all concrete and other materials demolished off and away from the site .

. 5 It shall be the Contractor's responsibility to find suitable disposal areas off the Owners property .

. 6 The Contractor shall immediately notifY the Engineer of any variance of the concrete tank conditions encountered .

. 7 The Contractor shall take all necessary precautions to prevent damage to remaining building materials and shall repair any unnecessary damage at his own expense. Extra attention must be paid to protecting the electrical and mechanical systems .

. 8 Movement of any electrical conduits required to complete concrete repairs will be the responsibility of the Contractor. Electrical conduits shall be re-instated once the repairs are complete. Repairs to electrical conduits damaged by the Contractor will be the Contractor's responsibility. The Contractor shall efficiently coordinate the repairs with the Owner to minimize delay time .

. 9 Saw cut around the perimeter of concrete areas to be demolished where indicated .

. 1 0 Any hazardous or dangerous materials uncovered during the demolition work which require special handling and/or disposal are the responsibility of the Contractor and shall be handled and/or disposed of in accordance with Worksafe B.C., B.C. Ministry ofEnvironment's Lands and Parks requirements, and local Municipal bylaws and ordinances .

. 11 Wherever and whenever the Contractor removes more concrete than required, directed or intended to be removed as shown on the Drawings or as directed by the Consultant, the replacement of that amount of concrete will be at the Contractor's expense. Unnecessary damage to parts of the structure forming part of the completed work shall be repaired by the Contractor at the Contractor's expense.

2.2 FLOOR DECK REMOVAL TO ACCESS FILTRATION TANK:

.1 Remove handrails, fibreglass floor panels, wooden trestle over filter tank and save for reinstallation.




Page 5 of 6

.2 Remove necessary floor deck metalwork to complete concrete repairs. Save for reinstallation. Notify the Consultant of any significant corrosion of metalwork that may require replacement.

2.3 CONCRETE REMOVAL FOR TANK WALL AND PERIMETER WALL REPAIRS:

.1 Erect/maintain suitable protection around the equipment to protect people from being hit by flying debris .

. 2 Debris from the demolition process shall be promptly removed from the repair area .

. 3 A trial zone, representative of site conditions, shall be designated by the Engineer to demonstrate that the equipment, personnel and methods of operation are capable of producing results satisfactory to the Consultant.

.4 The Contractor shall cooperate with the Consultant in making any and all adjustments necessary to complete the work.

. 5 Upon acceptance of the trial areas, no changes shall be made or modified without prior notice to the Consultant. Failure to meet the general requirements for concrete removal will be sufficient cause for the Consultant to reject the equipment at no cost to the Owner .

. 6 Conduct primary concrete removal in the areas designated. Remove concrete down below the depth of the corroded reinforcing steel that caused the delamination as detailed on the Drawings .

. 7 Additional concrete removal shall be conducted in areas where primary reinforcing steel bars are exposed for more than one third the bar circumference after demolition to the specified depth or high corrosion activity is indicated. Areas requiring deep concrete removal shall be identified on site by Consultant after the initial concrete surface removal. Obtain written authorization from the Consultant before proceeding with additional concrete removal.

.8 At areas identified in Clause 2.2.7 remove additional concrete where necessary to provide a minimum clearance of 3/4" (20 mm) around exposed bars. Confirm quantity of additional concrete removal with Consultant before placing new concrete .

. 9 After structural concrete removal is complete, provide a saw cut around the perimeter of the repair area a minimum of 111 (25 mm) deep. Avoid cutting reinforcing steel.


Section: 02115 Canada Games Pool Water Filtration Tank Concrete Tank Repairs February, 2013

DEMOLITION

Page 6 of 6

3.0 MEASUREMENT FOR PAYMENT

.1 Payment for concrete demolition in designated repair areas will be included in the Unit Rate Price for concrete tank repairs as indicated in the Tender Form. Payment for removal andreinstallation of the deck flooring and metalwork to complete the repairs will be part of the Lump Sum shown in the Tender Form. Include all costs necessary and incidental for the work including labour, materials, equipment, temporary protection, shoring and cleanup in the Unit Rate and/or Lump Sum Rates.

END



1.0 GENERAL

CONCRETE REPAffi

1.1 RELATED WORK SPECIFIED ELSEWHERE

.1 Demolition

1.2 REFERENCESTANDARDS

Section: 03300

Page 1 of 9

Section 02115

.1 Concrete work shall conform to the requirements current edition of the following standards unless otherwise required by this specification.

B.C. Building Code

CAN/CSA-A23 .1, Concrete Materials and Methods of Concrete Construction. CAN/CSA-A23.2, Methods ofTest for Concrete. CAN3-A23. 3, Design of Concrete Structures for Buildings. CSA S448.1, Repair ofReinforced Concrete in Buildings and Parking Structures

1.3 SCOPE OF WORK

.1 Provide all labour, materials, services and equipment necessary and incidental for new concrete for concrete filtration tank wall, roof truss support base and perimeter wall repairs in areas shown on the Drawings and as directed by the Consultant.

.2 Provide all labour, materials, services and equipment necessary and incidental for installation of a thin cementitious coating on the interior walls and floor of the water filtration tank.

1.4 PROTECTION

. 1 Provide· and maintain all legal and necessary guards, railings and warning signs during the execution of the work to fully protect all persons and Owner from loss, damage, death or injury through the neglect or carelessness of the Contractor or the condition or handling of equipment. Ensure that employees have WHMIS training for materials being handled on site and that material safety data sheets for all materials being used are available for use and inspection on site.

1.5 MEASUREMENT FOR PAYMENT

.1 Concrete removal, surface and reinforcing steel preparation and installation of repair material

will be paid on a Unit Rate basis, as detailed in the Tender Form, for areas authorized by the Consultant. Include all costs necessary and incidental for Concrete Repairs including



CONCRETE REPAffi

Section: 03300

Page 2 of 9

demolition, shoring, labour, materials, equipment, temporary protection, and cleanup in the Unit Rates and/or Lump Sum Prices .

. 2 Measurement of concrete repair volumes shall be cross checked by bag count multiplied by the manufacturer's calculated volume yield per bag of materials. The measured volume and calculated volume must agree within 10%. The Contractor shall save all spent material bags for counting by the Consultant.

1.6 INSPECTION BY THE CONSULTANT

.1 Provide adequate notice to the Consultant to ensure that he has the opportunity of inspecting all prepared areas prior to placement of concrete .

. 2 Contractor to pay all costs incurred for uncovering and making good any work covered before required inspection is completed and approved by the Consultant.

. 3 Payment for inspection and specified testing to be by the Owner except for the following and as noted above:

a) Testing required by laws, ordinances, rules, regulations or orders of the public authorities.

b) Inspection and testing performed exclusively for the Contractor's convenience .

. 4 Where tests or inspections by the Consultant reveal work not in accordance with Contract requirements, the Contractor shall pay costs for additional tests or inspections that the Consultant may require to verify acceptability of the corrected work.

2.0 PRODUCTS

2.1 CONCRETE REPAffi MATERIALS- GENERAL

.1 Type 10 Portland cement in accordance with CAN/CSA-AS .

. 2 Supplementary cementing materials in accordance with CAN/CSA-A23.5, Type For Type U.

.3 Concrete Aggregates in accordance with CAN/CSA-A23 .1; Clause 5 .

.4 Water to be potable in accordance with CAN/CSA-A23 .1; Clause 4 .

. 5 Air entraining admixtures in accordance with CAN3-A266.1.



CONCRETE REPAffi

.6 Water reducing admixtures in accordance with CAN3-A266.2 .

. 7 Superplasticizing admixtures in accordance with CAN3-A266.6 .

Section: 03300

Page 3 of 9

. 8 Chlorides either as a raw material or as a constituent in admixtures shall not be used .

. 9 Liquid membrane curing compounds shall not be permitted.

2.2 PRE-PACKAGED CONCRETE REPAffi PRODUCTS- GENERAL

.1 For pre-bagged products, each bag of product delivered to the site is to be clearly identified with the supplier and product name and date of manufacture. Technical literature detailing mixing, placing and curing requirements to be supplied to the site with the repair material.

.2 Submit specified Concrete Repair Systems to the Consultant for review 7 days prior to concrete placement.

.3 Consultant's written approval of Concrete Repair Systems is required before initiation of repatrs .

.4 All pre-bagged repair materials shall meet ASTM C-666 Test Method for Resistance of Concrete to Rapid Freezing and Thawing - minimum durability factor of 90% .

. 5 All pre-bagged repair materials shall have a minimum 28 day compressive strength of 40 MPa .

. 6 Pre-bagged materials shall not be used later than 6 months from the date of manufacture.

2.3 BONDING SLURRY

.1 Bonding slurry for concrete repairs shall be in accordance with CSA A23 .1 and shall consist of: a) Type 10 Portland cement: 1 part by volume b) Clean sharp, masonry sand: 1 part by volume c) Water to give a thick creamy consistency .

. 2 Addition of polymer bonding agent in the bonding slurry or direct application of polymer bonding agent is not required for readi-mix or pre-bagged concrete repairs.



CONCRETE REPAffi

Section: 03300

Page 4 of 9

2.4 MORTAR OR CONCRETE FOR SLAB SOFFIT AND WALL REPAffiS:

.1 Mortar for tank and perimeter wall repairs less than 2 11 (50 mm) in thickness shall be prebagged weight hatched, air entrained, freeze-thaw resistant, low shrinkage mortar. Preapproved products include:

Emaco R350 Target VO Patching Mortar Thoro Tho rite 100 Sikatop 123

.2 Concrete for perimeter wall repairs greater than 2 11 (50 mm) in thickness shall be pre-bagged weight hatched, air entrained, freeze-thaw resistant, flowable, low shrinkage concrete with 3/8 11 (10 mm) maximum aggregate size. Pre-approved products include:

Target Flowcrete or equivalent.

.3 Polymer additive to be used with pre-bagged mortar as mixing liquid and in bonding slurry only if required by the manufacturer in accordance with the manufacturer's instructions.

2.5 PRE-BAGGED SHOTCRETE FOR TANK WALL REPAffiS:

.1 Pre-bagged shotcrete for tank wall repairs shall be silica fume modfied, weight hatched shotcrete or shotcrete mortar. Shotcrete shall be freeze-thaw resistant and low shrinkage. Pre-approved products include:

For repairs less than 50 mm (2 in.) thick: Target SC100D or W Master Builders S88 CA

For repairs greater than 50 mm (2 in.) thick: Target Superstick shotcrete. Ocean Microsil shotcrete.

2.6 MORTAR FOR FILTRATION TANK INTERIOR WALL COATING:

.1 Mortar for filtration tank interior wall and floor coating nominall/4 11 in thickness shall be prebagged weight hatched, air entrained, freeze-thaw resistant, low shrinkage mortar. Preapproved products include:

Target VO Patching Mortar Thoro Tho rite 100 Sikatop 123



CONCRETE REP Am

Section: 03300

Page 6 of 9

.3 Sandblast clean all interior tank wall and floor surfaces to receive thin cementitious coating. Sandblast finish shall be ICRI standard CSP 3 minimum .

.4 Use air wands (dry, oil-free air) and/or vacuum cleaning equipment to remove blasting grit, slurry and debris from form work and concrete surfaces .

. 5 Provide adequate protection and screens during demolition and blast cleaning operations to ensure the safety of pedestrian and vehicle traffic .

. 6 When bonding fresh concrete to existing concrete, thoroughly saturate the existing concrete 16 to 24 hours before placing concrete. Use oil free compressed air to remove water from low areas and from exposed reinforcing steel.

4.2 LINES AND GRADES

.1 The Contractor shall provide a system such as screed rails or other approved methods to provide the specified concrete cover to reinforcing steel. The Contractor is responsible for survey control of all work. Periodic checks by the Consultant do not relieve the Contractor of any responsibility herein stated.

4.3 BONDING AGENTS

.1 A 50:50 cement/sand bonding slurry shall be used when bonding fresh concrete to existing concrete or as directed in the product manufacturer's literature, whichever is more stringent.

.2 Allow concrete to come to a saturated surface dry condition before applying bonding slurry or concrete. Prepare a bonding slurry mixed with sufficient water to give a creamy consistency. Mix only enough slurry in each batch to ensure that the application of slurry is placed no longer than 20 minutes ahead of concrete placement. Discard any slurry that is not applied within 20 minutes of mixing .

. 3 Apply bonding slurry by scrubbing onto the surface with a stiff bristle brush.

4.4 CONCRETE FOR FILTRATION TANK WALL REPAffiS:

.1 All concrete wall repairs greater than 2" in thickness shall be formed and poured. Materials selection, forming and pouring procedures to be reviewed and approval by the Consultant prior to pouring.



CONCRETE REP Am

Section: 03300

Page 7 of 9

.2 Inform Consultant at least 24 hours before placing concrete. No concrete to be placed until Consultant has inspected and approved in writing all preparation of concrete and reinforcing steel, and installation of forms. Adjustment of elevations at any unsatisfactory areas, and retesting, will be required before approval of preparation work by Consultant.

.3 When concreting starts, carry on as a continuous operation until the placing of the section is

completed. When shown on Drawings, place concrete in the sections indicated and according to the sequence given .

.4 Place freshly mixed concrete in accordance with CAN/CSA-A23 .1.

For pre-bagged concrete, add dry concrete to water with continuous power mixing to achieve the required consistency. Use the minimum amount of water to achieve the required slump. Water to be weighed or volume hatched to maintain consistency between batches. Mix for a

minimum period of 5 minutes. All concrete must be placed and consolidated within 20 minutes of initial mixing. Subsequent addition of water or superplasticizer to maintain workability shall not be permitted .

. 5 Deposit concrete as close as practical to its final position. Provide delivery equipment which will not exceed the safe loading capacity ofthe structure .

. 6 Vibrators shall be adequately powered and sufficiently intense to cause the concrete to compact readily into place. Systematically apply vibrators at such intervals that the zones of

influence of the vibrator overlap. Insert the vibrator vertically into the concrete long enough to ensure that the concrete is properly compacted. Employ a sufficient number of vibrators so that the required rate of placement vibration throughout the entire volume of each layer of concrete compaction is secured. Keep one spare vibrator at site for emergency use .

. 7 Finish concrete in accordance with CSA-A23 .1 .

. 8 As soon as the concrete surface has been finished and can bear weight without marking, carefully cover with burlap. Thoroughly wet the burlap with water before placing it on the concrete and keep saturated during curing period with a water spray sufficiently fine to avoid damaging the concrete surface.

Cover burlap with polyethylene sheeting to maintain saturation of concrete during curing

periods. For pre-packaged concrete, the contractor shall ensure that the burlap is kept wet at all times during 7 days after placing concrete. For pre-packaged repair mortars, the curing period is a minimum of 24 hours or until the heat generated by the repair concrete has fully dissipated (whichever is the greater time).



CONCRETE REPAIR

Section: 03300

Page 8 of 9

. 9 Remove forms from repair areas. Grind any fins or protrusions within the repair area, and patch minor voiding.

4.5 MORTAR FOR TANK WALL REPAIRS AND COATING:

.1 Prepare mortar in accordance with the manufacturer's recommendations using the manufacturer's recommended latex as the mixing liquid. Add bagged product to latex with continuous power mixing to achieve the required consistency. Use the minimum amount of mixing liquid consistent with the placement method .

. 2 Pre-soak concrete substrate and allow concrete to come to a saturated surface dry condition before applying bonding slurry or concrete. Scrub bonding slurry onto the prepared surface with a stiff brush. If required, use the manufacturer's recommended latex as the mixing liquid for the cement/sand slurry .

. 3 Place and consolidate material soon as practical after mixing and before bonding slurry has dried out.

. 4 Provide a key by scribing the surface of the mortar when the repair is completed in several lifts.

4.6 SHOTCRETEFOR TANK WALL REPAIRS

.1 Pre-bagged dry mixed shotcrete shall be mixed and applied in strict conformance with ACI 506 .

. 2 Dry mix shotcrete shall be pre-dampened with water (3 - 6% moisture content) and mixed in an auger prior to discharge into the delivery pot.

.3 Pre-soak and allow concrete to come to a saturated surface dry condition before applying shotcrete. Apply shotcrete with sufficient pressure to fully encapsulate the reinforcing steel with no air voids left behind the bars. Remove and replace any shotcrete where air voids behind the reinforcing steel are observed during placement.

.4 Remove overspray buildup from repair, adjacent reinforcing steel and prepared surfaces prior to shotcrete application .

. 5 Build up shotcrete in layers as necessary to prevent fresh shotcrete delamination from the prepared concrete surfaces.



CONCRETE REP Am

Section: 03300

Page 9 of 9

. 6 Finish the applied shotcrete by striking off the excess material and smoothing with a wooden float. The finished shotcrete profile shall match the existing beam or column dimensions except where additional cover to reinforcing steel is required.

4.7 DEFECTIVE CONCRETE AND PATCHING

.1 Concrete surface to be free from open texturing, voids, and projections .

. 2 Repair of defective concrete work:

a) Repair defective areas while concrete is still plastic, otherwise wait until curing is completed. Use repair methods approved by Consultant.

b) Grind off high surface variations where directed and re-texture surface to match adjoining concrete as closely as possible .

. 3 Remove and replace defective concrete where directed. Removal and replacement procedures will be detailed by the Consultant.

.4 Repair of defective concrete work and/or removal and replacement of defective concrete prior to final acceptance of the deck to be carried out at Contractor's expense .

. 5 Immediately after the removal of forms, all bolts, ties, nails or other metal not specifically required for construction purposes shall be removed or cut back to a depth of 25 mm (1 ") from the surface of the concrete.

4.8 PROTECTION

.1 All freshly placed and consolidated concrete shall be suitably protected during the curing period against damage from adverse weather conditions. Protection of the concrete from adverse weather conditions is the sole responsibility of the Contractor and shall be conducted in strict accordance with Clause 21, CAN/CSA-A23.1.

4.9 TOLERANCES

.1 Tolerances shall conform to CAN/CSA-A23.1 (current edition) or the requirements ofthese specification, whichever are more rigorous.

END


Section 05500 Canada Garnes Pool Water Filtration Tank Concrete Tank Repairs February, 2013

MISCELLANEOUS METALWORK

Page 1 of 5

1.0 GENERAL

1.1 SCOPE OF WORK:

.1 Supply and install, or supply only as applicable, all miscellaneous metalwork items as required for re-installation of the metal framing for the fibreglass deck floor and guardrails indicated on drawings and as specified herein. The scope of work includes, but is not limited to, the following:

Sand blast cleaning of corroded metal elements and re-painting with zinc-rich paint. Install new galvanized metal fasteners and anchorages as required to replace corroded metal fasteners and anchorages.

1.2 SUBMITTALS:

.1 For guardrail re-installation, provide a drawing signed and sealed by an Engineer registered with APEGBC. The same Engineer shall undertake a review of the final installation and provide written certification of installation compliance.

1.2 QUALIFICATIONS:

.1 Welding work to conform to CSA-W59 and shall only be performed by organizations and operators qualified under CSA Welding Qualifications Code, CSA-W47 .

. 2 Electrodes to conform to CSA-W48.

1.3 DELIVERY

.1 All miscellaneous metal items delivered to the site shall be tagged and supplied with sufficient information for identification and fixing .

. 2 Arrange delivery in such sequence and manner to permit the most efficient and economical performance ofthis section ofwork.

1.4 PROTECTION

.1 Use all means necessary to protect miscellaneous metal before, during and after installation and to protect the installed work and materials of all other items.



MISCELLANEOUS METALWORK Section 05500

Page 2 of 5

.2 In the event of damage, immediately make all repairs and replacements necessary to the

approval of the Consultant at no extra cost.

2.0 PRODUCTS

.1 All materials used for miscellaneous metal work shall conform to the most current addition of the

appropriate standards.

2.1 MATERIALS

.1 Steel: .1 Structural steel, miscellaneous steel shapes, conforming to CAN3-G40.21,

Grade 300W .

. 2 Seamless hollow structural sections, conforming to CAN3-G40.21, Grade

SOW, Type C or H.

.2 Bolts, Nuts and Washers: In accordance with material and size requirements ofCAN/CSA

S 16.1. Fasteners installed inside the tank below the water line shall be stainless steel. All

other fasteners shall be hot dipped galvanized .

. 3 Concrete Anchors: Expanding or self setting anchors shall be galvanized anchors supplied by Hilti Canada. Stainless steel anchors shall be used inside the tank below the water line .

.4 Galvanizing: Hot dipped galvanizing with zinc coating 2 oz./sq.ft. to CSA-G164 .

. 5 Galvanized Metal Primer: Shall conform to CAN/CGSB 1.132 .

. 6 Galvanized Metal Paint: Zinc - rich paint conforming to CAN/CGSB 1.181. Approved

products include; Galvicon; Devcon Z.

2.2 FABRICATION

.1 Verify all dimensions on site prior to proceeding with shop fabrication .

. 2 Fit and shop assemble in largest practical sections for delivery to the site .

. 3 Fabricate and assemble miscellaneous metal items true, straight, square and free from warpage

or other defects .

.4 Grind smooth sharp edges, angles and corners.




Page 3 of 5

.5 Items to be fixed to concrete or masonry with expansion shields, expansion bolts or selfdrilling anchors. Fixing to be of correct size to suit load being imposed .

. 6 Design, fabrication and workmanship shall conform to CAN/CSA-S16.1 and where applicable, shall also meet requirements ofB.C. Building Code .

. 7 Welding shall conform to CSA-W59 .

. 8 Fabricate all work in accordance with details shown on drawings .

. 9 Fabricate items from steel unless otherwise noted .

. 1 0 Use self-tapping shake-proof flat headed screws on items requiring assembly by screws or as indicated .

. 11 Where possible, fit and shop assemble work, ready for erection .

. 12 Ensure exposed welds are continuous for length of each joint. File or grind exposed welds smooth and flush .

. 13 Bolted work shall be carefully tightened with threads of bolts nicked to prevent subsequent loosening, unless work indicated is noted as demountable .

. 14 Drill or punch all holes required for the attachment of work of other trades and bolted connections.

2.3 MISCELLANEOUS METAL ITEMS

.1 All miscellaneous metal items shall be as necessary for re-installation of the existing floor deck framing.

2.4 ANCHORS,BOLTS AND SCREWS

.1 All fixing and anchorage for miscellaneous metalwork shall be hot-dipped galvanized and supplied as detailed and as required to suit installations and erection.

2.5 ANGLES, CLIPS AND CHANNELS




Page 4 of 5

.1 Provide all the angles, brackets, anchors, clips, plates, channels, etc. required to support or fix items of work installed by other sections, save where specifically exempted and supply and fix any other miscellaneous ironwork required in the work.

3.0 EXECUTION

3.1 EXAMINATION

.1 Examine all details of the work as related to this section and other sections. Ensure that all conditions are suitable to provide a complete and satisfactory installation or be responsible for any additional costs involved .

. 2 Carefully inspect all surfaces and the work of other trades, as it relates to the work of this section, for defects and discrepancies and report same to the Contractor.

3.2 ERECTION

.1 Erect miscellaneous metal, square, plumb, straight, and true, accurately fitted, with tight joints and intersections .

. 2 Install all anchorage for miscellaneous metal, meeting the requirements of the B.C. Building Code or City ofNew Westminster By-law where applicable, including dowels, anchors, clips, bar anchors, expansion bolts and shields, and toggles .

. 3 Execute all metal work in a thorough and workmanlike manner according to best shop practices. Material cut from stock to be sheared or parted straight and all deburred. Where cuts are burned, grind off clean and true to line. Exposed welding or welding in fined surfaces to be ground smooth or filleted as required. Fabricate all items accurately, true to line and dimension .

.4 Make field connections with bolts to CAN/CSA-S 16.1-94, or weld .

. 5 Hand items over for casting into concrete or building into masonry to appropriate trades together with setting templates .

. 6 Touch-up rivets, field welds, bolts and burnt or scratched surfaces with primer after completion or erection .

. 7 Touch-up galvanized surfaces with zinc primer when burned by field welding.




Page 5 of 5

.8 Fastenings: Concealed where possible, sizes and spacing to match existing. Conforming to requirements ofB.C. Building Code where applicable, CSA Specifications and best trade practices to give permanent stability and good appearance; avoid stain, scratches, damage and distortion of materials .

. 9 Sand blast corrosion from existing metalwork to white metal. Apply two coats of zinc-rich paint to cleaned metal. Two coating thickness to be a 4 mils minimum.

4.0 PAYMENT

.1 Payment for Miscellaneous Metal shall be included as part of the Lump Sum Price for the removal and re-installation of the floor deck metal frame as indicated on the Tender Form. Assume that all metalwork and fasteners will be saved and re-used. Include an allowance for cleaning and repainting existing metalwork with surface corrosion .

. 2 Replacement of significantly corroded metalwork, fasteners and anchorages shall be paid for on a Time and Materials Basis.

END
