metropolitan regional housing authority tender no. met20

Metropolitan Regional Housing Authority

Tender No. MET20-126 Terrace Roof & Concrete Repairs in Halifax

ADDENDUM NO. 7

October 17, 2020

The Tender Documents shall be amended and will become part of the Contract Documents.

This addendum shall form an integral part of the Tender Documents.

An additional page has been added to the tender document’s SECTION ONE-BID FORM. This page is SCHEDULE A - SUPPLEMENTARY PRICING.

This page is to be completed and included as part of your bid submission.

The SCHEDULE A - SUPPLEMENTARY PRICING page follows this page and forms part of this addendum.

The tender closing date and time remains the same.

End of Addendum

Addendum #7 Tender No. MET20-126 Terrace Roof & Concrete Repairs in Halifax of 2



SECTION ONE - BID FORM

SCHEDULE A - SUPPLEMENTARY PRICING

The following are Supplementary Prices and are NOT to be included in your Bulk Sum Price

THE CONTRACTOR AGREES THAT THE FOLLOWING ARE THE UNIT PRICES REQUESTED AS SUPPLEMENTARY PRICING NOT INCLUDING TAXES:

TENDER UNIT PRICING AT BALCONY SLAB ITEM UNIT PRICE (Excluding Taxes)

UNIT PRICE FOR CONCRETE REMOVAL AT BALCONY DECK.

$ /PER CUBIC FOOT

UNIT PRICE FOR STEEL REINFORCING REMOVAL AND REPLACEMENT

$ /PER LINEAR FOOT

TENDER UNIT PRICING AT COLUMNS ITEM UNIT PRICE (Excluding Taxes)

UNIT PRICE FOR CONCRETE REMOVAL AT COLUMNS

$ /PER CUBIC FOOT

UNIT PRICE FOR STEEL REINFORCING REMOVAL AND REPLACEMENT

$ /PER LINEAR FOOT

Addendum #7 Tender No. MET20-126 Terrace Roof & Concrete Repairs in Halifax of 2



ADDENDUM NO. 6

October 16, 2020

The Tender Documents shall be amended and will become part of the Contract Documents. This addendum shall form an integral part of the Tender Documents. THE TENDER CLOSING DATE HAS BEEN EXTENDED. THIS TENDER WILL NOW CLOSE ON WEDNESDAY, OCTOBER 21, 2020 AT 2:00 PM LOCAL TIME.

• Another addendum is being prepared to follow this addendum. ______________________________________________________________________

End of Addendum

Page 1 of 1



ADDENDUM NO. 5

October 13, 2020

Page 1 of 1



THE TENDER DATE CLOSING DATE HAS BEEN EXTENDED.

THIS TENDER WILL NOW CLOSE ON FRIDAY, OCTOBER 16, 2020 AT 2:00 PM LOCAL TIME.

______________________________________________________________________

END OF ADDENDUM



ADDENDUM NO. 4

October 8, 2020

Page 1 of 5

The Tender Documents shall be amended and will become part of the Contract Documents. This addendum shall form an integral part of the Tender Documents. ______________________________________________________________________ QUESTION: In regards to NS20-1973 - MRHA - Terrace Roof and Concrete Repairs in Halifax, do you have full size drawings available?

The drawings found in spec are sized 11x17. ANSWER: No, They are not available on full size drawings,. They are plotted on 11 x 17.

The closing date and time remains the same.



ADDENDUM NO. 3

October 06, 2020

Page 1 of 5



______________________________________________________________________

Please see product approval information on the pages below. These pages will form part of this addendum.

The closing date and time remains the same

03 01 00 Maintenance of Concrete3

MasterEmaco® S 440Pourable and pumpable pre-extended self-consolidating repair mortarFORMERLY LA40 REPAIR MORTAR

DESCRIPTION MasterEmaco S 440 is a one-component, shrinkage-compensated, self-consolidating repair mortar. It is designed for large volume repairs, including structural elements in applications from 1.5" (38 mm) to full depth.

PACKAGING 55 lb (25 kg) polyethylene-lined bags

YIELD 0.43 ft3 (0.012 m3) per 55 lb (25 kg) bag

STORAGE Store in unopened containers in cool, clean, dry conditions

SHELF LIFE 1 year when properly stored

VOC CONTENT 0 g/L less water and exempt solvents

PRODUCT HIGHLIGHTS• Dual expansion system compensates for

shrinkage in plastic and hardened states• High early strength allows early form removal• Low permeability protects against carbon

dioxide and chloride intrusion• Excellent freeze/thaw resistance for durability in

cold, wet environments• Flowability makes it ideal for placement by

pumping or pouring into congested locations• Self-consolidation minimizes honeycombing

without vibration

HOW TO APPLYSURFACE PREPARATIONCONCRETE

1. Concrete must be structurally sound and fullycured (28 days).

2. Saw cut the perimeter of the area beingrepaired into a square with a minimum depthof 1/2" (13 mm).

3. Refer to current ICRI Guideline no. 310.2Rfor surface prep requirements to permitproper bond.

REINFORCING STEEL1. Remove all oxidation and scale from the

exposed reinforcing steel in accordance withICRI Technical Guideline No. 310.1R.

2. For additional protection from future corrosion, coat the prepared reinforcing steel withMasterProtect P 8100 AP.

APPLICATIONS• Interior and exterior• Large volume structural repairs• Repair or replacement of concrete elements

SUBSTRATES• Concrete

Technical Data Guide

Master Builders Solutions by BASF www.master-builders-solutions.basf.us

Technical Data Composition MasterEmaco S 440 is a proprietary blend of cement, graded aggregate, shrinkage-compensating agents, and additives.

Fresh wet density, lb/ft3 (kg/m3) 142 (2,275) ASTM C 138

Slump Flow*, in (cm) 25 (63.5) ASTM C1611 Visual Stability Index 0 (Highly Stable - No Bleeding)

J-Ring Slump Flow*, in (cm) 24.5 (62.5) ASTM C1621 Passing Ability, in (cm) 0.5 (1) No visible blocking

Compressive strength, psi (MPa); ASTM C 109 2" (51 mm) cubes

1 day 2,500 (17.2) 7 days 5,000 (34.5) 28 days 6,000 (41.4)

Compressive strength, psi (MPa); 5,000 (34.5) ASTM C 39 3 by 6" (76 by 152 mm) cylinders, at 28 days

Flexural strength, psi (MPa), 1,150 (7.9) ASTM C 348 at 28 days

Slant shear bond strength, 3,000 (20.7) ASTM C 882, (modified1) psi (MPa), at 28 days

Splitting tensile strength, 500 (3.4) ASTM C 496 psi (MPa), at 28 days

Drying shrinkage, µstrain, 350 ASTM C 157, (unmodified) at 28 days

Drying shrinkage, µstrain, 611 ASTM C 157, (modified) at 21 days

Freeze/thaw resistance, % RDM2 100 ASTM C 666

Coefficient of thermal expansion, 5.5 x 10-6 (9.9 x 10-6) CRD C 39 in/in/° F (cm/cm/° C)

1No bonding agent2RDM = Relative Dynamic Modulus

*2.75 qts water / 55 lb bag (Minimum water addition)

Results were obtained with a water per powder ratio of 2.7 qts per 55 lb (2.6 L per 25 kg) bag.

All application and performance values are typical for the material, but may vary with test methods, conditions, and configurations.

Test Data

PROPERTY RESULTS TEST METHOD

Technical Data Guide MasterEmaco® S 440

MIXING1. Ensure that MasterEmaco S 440 is thoroughly

mixed; a forced-action mixer is essential. Mixingin a suitably sized container using an appropriatepaddle with a slow-speed (400–500 rpm) heavy-duty drill is acceptable. Do not use free-fall mixers.

2. Measure 2.7 quarts (2.6 L) of potable water andpour 2 quarts into the mixer. With the machinein operation, add 1 full 55 lb (25 kg) bag ofMasterEmaco S 440 and mix for 1 minutebefore adding the rest of the water. Always addpowder into the water. The quantities mixed maybe scaled up as required.

3. Mix for a further 2–3 minutes to obtain asmooth consistency.

4. When using the drill-and-paddle mixing method, place the complete 2.7 quarts (2.6 L) of water in themixing drum. With the paddle rotating, add 1 full55 lb (25 kg) bag of MasterEmaco S 440 and mix3 minutes to reach a smooth, even consistency.

5. Depending on the ambient temperatures andthe desired consistency, additional water maybe added. The total water content should notexceed 2.9 quarts (2.7 L) per 55 lb (25 kg) bag.

APPLICATION1. Build forms in accordance with ACI 347R.

Keep the unrestrained surface area of therepair to a minimum.

2. Saturate the prepared concrete substrate byfilling the prepared formwork with clean water24 hours before placement.

3. Immediately before the placement ofMasterEmaco S 440, completely drain thiswater and seal the drainage outlets, leaving thesubstrate saturated surface-dry (SSD) with noponded water remaining.

4. In jobsite circumstances where the formworkcannot be filled with water to achieve an SSDsurface, the prepared concrete substrates mustbe thoroughly hosed down with clean water toachieve an equal level of saturation. Apply therepair material with sufficient pressure to ensureintimate contact with the substrate.

5. A long open-time bonding agent such asMasterEmaco P 124 may be used in place of asaturated substrate. In such a case, place theMasterEmaco S 440 before the bonding agentbecomes tack free.

6. Immediately after mixing, pump or pour theMasterEmaco S 440 into the formed area. Thematerial does not require vibrating.

7. The recommended application range ofMasterEmaco S 440 is from 40 to 85° F(4 to 29° C). Follow ACI 305 and 306 for hot orcold weather guidelines.

CURING1. Leave the formwork in place until the

compressive strength reaches 2,500 psi (17.2MPa) or a strength specified by the engineer.

2. Cure with an approved curing compoundcompliant with ASTM C 309 or preferably ASTMC 1315. If the repair area will receive a coating, wet curing is recommended.

CLEAN UPClean tools and equipment with clean water immediately after use. Cured material must be removed mechanically.

FOR BEST PERFORMANCE• Minimum ambient, surface, and material

temperature is 40° F (4° C) and rising.• Do not mix longer than 5 minutes.• Minimum application thickness is 1.5" (38 mm).

When the depth is less than 1.5", use MasterEmaco S 440 MC.

• Do not mix partial bags.• Do not use to make overlay repairs where the

surface of fresh, wet MasterEmaco S 440 willremain unrestrained during cure.

• Do not vibrate• Do not add plasticizers, accelerators, retarders,

or other additives.• For professional use only; not for sale to or use

by the general public.• Make certain the most current versions of

product data sheet and SDS are being used;visit www.master-builders-solutions.BASF.us toverify the most current versions.

• Proper application is the responsibility of theuser. Field visits by BASF personnel are for thepurpose of making technical recommendationsonly and not for supervising or providing qualitycontrol on the jobsite.

Master Builders Solutions by BASF www.master-builders-solutions.basf.us

© 2015 BASF Corporation Form No.1018997 rev 05/15

BASF Corporation 889 Valley Park Drive, Shakopee, MN 55379 Customer Service 1(800) 433.9517 Construction Systems www.master-builders-solutions.basf.us Technical Service 1(800) 243.6739

HEALTH, SAFETY AND ENVIRONMENTAL Read, understand and follow all Safety Data Sheets

and product label information for this product prior to use. The SDS can be obtained by visiting www.master-builders-solutions.basf.us, e-mailing your request to [email protected] or calling 1(800)433-9517. Use only as directed. For medical emergencies only, call ChemTrec® 1(800)424-9300.

LIMITED WARRANTY NOTICE BASF warrants this product to be free from

manufacturing defects and to meet the technical properties on the current Technical Data Guide, if used as directed within shelf life. Satisfactory results depend not only on quality products but also upon many factors beyond our control. BASF MAKES NO OTHER WARRANTY OR GUARANTEE, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO ITS PRODUCTS. The sole and exclusive remedy of Purchaser for any claim concerning this product, including but not limited to, claims alleging breach of warranty, negligence, strict liability or otherwise, is the replacement of product or refund of the purchase price, at the sole option of BASF. Any claims concerning this product must be received in writing within one (1) year from the date of shipment and any claims not presented within that period are waived by Purchaser. BASF WILL NOT BE RESPONSIBLE FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL (INCLUDING LOST PROFITS) OR PUNITIVE DAMAGES OF ANY KIND.

Purchaser must determine the suitability of the

products for the intended use and assumes all risks and liabilities in connection therewith. This information and all further technical advice are based on BASF’s present knowledge and experience. However, BASF assumes no liability for providing such information and advice including the extent to which such information and advice may relate to existing third party intellectual property rights, especially patent rights, nor shall any legal relationship be created by or arise from the provision of such information and advice. BASF reserves the right to make any changes according to technological progress or further developments. The Purchaser of the Product(s) must test the product(s) for suitability for the intended application and purpose before proceeding with a full application of the product(s). Performance of the product described herein should be verified by testing and carried out by qualified experts.

Technical Data Guide MasterEmaco® S 440

BeckAV

New Stamp

BeckAV

Typewritten Text

x

BeckAV

Typewritten Text

Oct. 05, 2020

BeckAV

Typewritten Text

A. Beck



ADDENDUM NO. 2

October 06, 2020

Page 1 of 1

The Tender Documents shall be amended and will become part of the Contract Documents. This addendum shall form an integral part of the Tender Documents. ______________________________________________________________________

The closing date has been extended. The tender will now close on: WEDNESDAY, OCTOBER 14th, 2020 AT 2:00pm

END OF ADDENDUM



ADDENDUM NO. 1

October 6, 2020

Page 1 of 5

The Tender Documents shall be amended and will become part of the Contract Documents. This addendum shall form an integral part of the Tender Documents. ______________________________________________________________________ Please note the following amendments and attached drawings A3 and A-25, on the pages that follow.

The closing date and time remains the same.

TENDER NO.:

TITLE:

ADDENDUM No.:

ISSUE DATE:

MRHA MET 20-126 Metro Regional Housing Authority Cardiff Place – Terrace Roof & Concrete Repairs 2439-2465 Gottingen Street, Halifax, N.S.

Metro Regional Housing Authority Cardiff Place – Terrace Roof & Concrete Repairs 2439-2465 Gottingen Street, Halifax, N.S.

1

06 October 2020

The following information is provided to the potential tenderers for the above named project, to the extent referenced and shall become a part thereof. No consideration will be allowed for extras due to the tenderer or any sub-contractor not being familiar with this addendum. This Tender addendum shall form part of the Contract Documents and is to be read, interpreted and coordinated with all other parts. The following revisions supersede the information contained in the original instructions and specifications issued for the above named project.

AMENDMENTS

1) Is there an existing steel column within screen wall?

Yes - See drawing A-25 attached for original construction details. For tender assumethis is existing detail at screen wall at First Floor Level deck

2) Will a temporary rail at roof level be required?

No temporary railing required at Roof level or Second floor level. No work at roof level.At level (2 doors) to be infilled to block tenant access prior to demolition work on roof &railings. Temporary railings may be required for construction safety.

3) Will the entire wall face need to be scaffolded and hoarded?

See attached drawing A3 (dashed line) for extent of area where scaffold and hordingrequired.

4) Is it acceptable to prepare lower steel beam by grinding with steel brush, or other methodas opposed to sand blasting?

Yes, steel brush method to prepare steel beam is acceptable.

5) At tender site tour structural steel was noted to be painted finish.

This is not correct. All structural steel exposed the weather to be Hot DippedGalvanized – see drawing S-401 Structural Steel Notes #4

Add slotted tab to steel column for bolted guardrail attachment prior to galvanizationprocess.

TIT

LE

DATE:

CHECKED BY:

SHEET NUMBER:

DRAWN BY:

PROJECT NO:

SCALE

PR

OJE

CT

NOVA SCOTIAProperty & Facilities

NEW TERRACE ROOF/ CONCRETE REPAIRS

CARDIFF PLACE, 2439-2465 GOTTINGEN STREET

HALIFAX, HALIFAX COUNTY

PF-2020-023

Sept 22, 2020

A. BECK

MC

A-3

4 OF 17

NEW FLOOR PLAN - SECOND FLOOR & NEW EAST ELEVATION

1/16"=1'-0"

NEW EAST ELEVATION

2

1/16"=1'-0"

FLOOR PLAN

1

1/16"=1'-0"

NORTH ELEVATION

3

A-8

1

A-5

1

1

A-8

1

A-5

A-10

1 & 2

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FOR THE INTENT OF THIS PROJECT, BUILDING PLAN & ELEVATIONS ARE PROVIDED FOR REFERENCE ONLY. GENERAL CONTRACTORS ARE RESPONSIBLE FOR VERIFYING INFORMATION, QUANTITIES AND DIMENSIONS IN THIS TENDER PACKAGE WITH CURRENT SITE CONDITIONS

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NEW STEEL COLUMNS - SEE STRUCTURAL DRAWINGS AND DETAIL ...

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DECK/ ROOF BEYOND

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DASHED LINE INDICATES EXTENT OF AREA TO BE SCAFFOLD AND HOARDED