sfi1819081210460 - clark county...lot # 2: robert “bob” price park improvements (snplma) -...

ROBERT “BOB” PRICE PARK August 2019 Lot # 1: Robert “Bob” Price Park Spray Feature and Park Improvements - RP.B0116099 TOOLED CONCRETE FINISHING Lot # 2: Robert “Bob” Price Park Improvements (SNPLMA) - RP.B0118006

03 35 29-1

SECTION 03 35 29

TOOLED CONCRETE FINISHING

PART 1 GENERAL 1.1 GENERAL CONDITIONS

A. Requirements of "General Conditions of the Contract" and of Division 1, "General Requirements," apply to work in this Section with same force and effect as though repeated in full herein.

1.2 DEFINITIONS

A. Approved Exhibit Contractor: Subcontractor whose proven experience, qualifications, and methods have been reviewed and accepted for the work of this section by the Architect and/or the owner.

B. Artificial Geology (Rockwork): Shall consist of the construction and placement of the artificial features indicated on the drawings and specifications.

C. Positive Carved or Embossed Shotcrete: Shall consist of premixed fine

aggregate, cement and water pneumatically placed or applied by suitable mechanism. Texture shall be by hand carving and embossing.

1.3 SCOPE OF WORK

A. All work specified in this section shall be performed by an approved Exhibit Contractor, as defined in this section.

B. Furnish materials, labor, transportation, services, and equipment necessary to

properly fabricate and install the following items as indicated on the drawings, references photographs, and noted as follows: 1. Positive Carved or Embossed Shotcrete Fabrications, including, but not

limited to the following: a) Canyon Walls b) Step Features c) Safety procedures for rock work d) Water Flow and Water Spray Features integrated

C. Work included in this Section:

1. Medium to Heavy Broom Finish Concrete

D. Work related in other Sections: 1. Section 09 24 00 - Portland Cement Concrete Paving: Adjacent concrete

paving. 2. Section 32 84 00 - Irrigation System: Coordination of irrigation sleeve installation.


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1.4 DESIGN INTENT

A. Artificial Rockwork: The design intent is to create a natural appearance of canyons made of Vishnu Schist rock prevalent in the Sunrise Mountain Range and into the Lake Mead Recreation area.

B. Shotcrete Paths: The design intent is to create fractured rock crevices within the

rock faces where water travels through and down the rock canyons to area drains.

1.5 APPLICABLE STANDARDS

A. Specifications and recommended practices of American Concrete Institute (ACI), American Society for Testing and Materials (ASTM), The Uniform Building Code, and under one or more U.S. Patents 5,794,401; 5,887,339; 5,950,394; 6,016,635; 6,033,146; 6,082,074; 6,112,487; 7,322,772; 7,493,732; 7,607,859; 7,614,820; 7,670,081; 7,781,019 and U.S. Trademarks #1,879,329, # 2,358,183 # 2,358,054) referred to in this Specification with their individual designations are to be considered part of this Specification.

B. Design and Control of Concrete Mixtures – Thirteenth Edition; Portland cement Association.

1.6 QUALITY CONTROL

A. Experience and Qualification of Bidders: The Exhibit Contractor, in order to obtain approval as a skilled craftsman for the shotcrete and exhibitory fabrication under the Work, shall submit the following to the Architect/Owner for approval: 1. A signed statement of experience certifying that the subcontractor is an

established business with a minimum of 5 years experience and indicate in detail his/her experience in successfully constructing 1) textured artificial rockwork and earthwork, 2) natural earth and rock formations for canyon type applications and 3) natural artificial rockwork facing for water play features and playground elements

2. Photographic proof and reference material for evaluation of experience and ability to perform under this Work. Provide five (5) images from different projects which depict rock formation or rock enhancements for playground features. Project must have been completed in the last 5 to 10 years. Include project name, GC, Architect, contact name and number as well as the contract value.

3. The assigned project on-site supervisor and aesthetic coordinator’s resume should show a minimum of five (5) years experience in the management of project crews, must provide a lead shotcrete nozzleman that is ACI certified.

4. The Architect/Owner may require additional information and may request a visit to completed work in order to make a determination of the subcontractor’s qualification to produce sound concrete structures with the required criteria under this Work.


03 35 29-3

5. The Architect/Owner reserves the right to reject non-qualified subcontractors based on qualification submittals and upon review of past work and references.

1.7 SITE INSPECTION

A. Verify conditions at site that affect work of this Section.

B. Take field measurements as required.

C. Report major discrepancies between Drawings and field dimensions to Owner's Authorized Representative prior to commencing work.

1.8 SUBMITTALS

A. Product Data: Submit no later than 10 days after contract award all manufactured items specified in this Section.

B. Structural Certification: Shop Drawings for all the work included in this Section are to be stamped by a registered professional Engineer licensed in the State of Nevada.

C. Shop Drawings: The Exhibitory Contractor shall submit the following shop drawings

for review: 1. Layout Plan: The layout plan shall indicate and identify the following:

a) All rockwork by indicated categories b) Locations of all required footing and foundations

required c) Footings and foundation types and all pertinent

dimensions 2. Steel Reinforcing: Indicate signs, types and locations of all steel

reinforcing involved in Work of this Section. D. Statement of Mix Design: Submit (1) copy of Statement of Mix Design prepared

by batch plant servicing Project for each load delivered to Project. Statement of Mix Design to contain following information: 1. Name, address, and telephone number of batch plant preparing

statement of mix design. 2. Date of mix design. 3. Project location. 4. Contractor requesting load delivery. 5. Mix design number. 6. Integral color used. 7. Gradations for sand and aggregate. 8. Material weights, specific gravity, and absolute volumes. 9. Basis of testing, i.e. UBC 2605 D4 and Title 24 2604 D4. 10. Water/cement ratio. 11. PSI rating. 12. Signature of testing laboratory manager. 13. Signed stamp from registered Project structural engineer or architect.


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E. Submit evidence of installer qualifications for experience, demonstration of square footage installed, number of projects, and contact information to verify experience as indicated in Quality Control section of this specification.

1.9 SUBSTITUTIONS

A. None allowed unless approved in writing by Owner’s Authorized Representative.

1.10 TESTING A. A testing agency may be designated by Owner or Owner's Authorized

Representative. Testing personnel are to meet ASTM E329 requirements. 1.11 MOCK-UPS A. Prior to construction, provide (1) 6-foot x 6-foot sample of the faux rockwork

specified on Drawings. B. Ensure that each mock-up contains aesthetic details as required on the project,

i.e. construction, contraction, isolation, joints, fissures, slot canyons and textures. C. Locate mock-ups in a conveniently accessible and protected place, preferably

within the proposed site and applicable to the project. Approved mock-ups will be standard for future installation review.

1.12 PRE-CONSTRUCTION CONDITIONS

A. All artificial rockwork locations shall be approved by the Architect/Owner prior to actual shotcrete application and texturing.

B. Structural Reinforcement: The Exhibit Contractor shall verify all structural reinforcement for all work in this section. The Exhibit Contractor shall provide structural engineers seal certifying all structural reinforcement sections at no additional cost to the owner. Alternative methods may be recommended for greater cost efficiency.

C. Methods of Construction: The Exhibit Contractor shall submit proposed methods of construction for all work in this section. Such documentation shall include the following:

1. Statement of understanding of the overall project schedule and required completion of all rockwork and artifacts.

2. Submit a detailed description of proposed fabrication and finish techniques (including materials) for artificial geology, waterproofing techniques for pools and planters and alternate structural systems (if applicable).

3. Recommend additional cost effective alternative methods of construction prior to start of work for consideration by Owner.

D. Excavation, Sub-drainage and Backfill 1. The Site Contractor is responsible for the excavation, dewatering,

shoring and maintenance of all excavation, sub-drainage, wall drainage and aggregate for shotcrete features up to the shotcrete sub-grade.


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2. The Site Contractor shall be responsible for all additional back-forming and backfilling required for shotcrete work as a result of his over excavation in areas where not required.

1.13 PRODUCT HANDLING A. Store materials in a dry and protected location. Protect reinforcing steel and

dowels from rusting, deformation, staining, and moisture damage. 1.14 COORDINATION

A. Notify Owner’s Authorized Representative and contractors performing work related to installation of Contractor’s Work in ample time, so as to allow sufficient time for them to perform their portion of work.

1.15 FINAL COMPLETION

A. Contractor shall repair and patch all punchlist items to the satisfaction of the Architect.

B. Contractor shall carefully inspect all construction areas to remove all debris,

particularly stones, steel bars, and other materials which could be uncovered.

1.16 WARRANTY

A. Guarantee all materials and workmanship, including waterproofing, included in this Section for one year from the date of Final Acceptance.

1.17 TESTING

A. Owner will contract and pay for testing services. Exhibit Contractor shall cooperate and coordinate with Owner provided testing services.

PART 2 PRODUCTS 2.1 Artificial Rockwork (Shotcrete Materials)

A. Reinforcing Materials 1. Reinforcing Bars: ASTM A 615, Grade 40 2. Steel mesh shall conform to ASTM Designation A82 or ASTM-

A185 3. Steel lath – painted or unpainted expanded metal lath, maximum

½ inch clear apertures, or equal 4. Supports for Reinforcement: Provide supports for reinforcement

including bolsters, chairs, spacers and other devises for spacing, supporting and fastening reinforcing bars.

B. Concrete Materials:


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1. Portland Cement: ASTM C 150, Type I or II. Use only one brand of cement throughout the project, unless otherwise acceptable to Owner.

2. Aggregates: ASTM C 33, and as herein specified: a. Fine Aggregate, including cinder fine where applicable.

Sand shall be sharp, clean river sand, free of extraneous materials.

b. Course Aggregate: Clean, uncoated processed aggregate containing no clay, mud loam or foreign matter, as follows: crushed stone, processed from natural rock or stone; washed gravel, either natural or crushed. Coarse aggregate shall be maximum 5/8 inch diameter, and shall be used only where walls are unexposed, covered, or enclosed by a final shotcrete applications or area building walls.

3. Color Additives: Pure Mineral Oxides, Frank B. Davis Company, or approved equal

C. Concrete Mix Design for Shotcrete: 1. Mix Design: Concrete for artificial rockwork (gunite/shotcrete shall

have f’c=4000 p.s.i. (minimum) at 28 days. 2. Proportions: The proportion of cement to aggregate, in loose dry

volumes, shall be not less than one to four and one-half.

D. Surface Texturing: Texturing of gunite surfaces shall include the embedment of roots, pebbles, gravels organic debris, cobbles and other materials necessary to simulate the texture of Vishnu Schist rock patters shown in the details.

2.2 FORMING SHOTCRETE OR GUNITE STRUCTURES

A. At structural slabs, sidewalls, and background concrete walls, where artificial rockwork is to be constructed, use the backup construction described below or provide the Owner with an alternate construction system for approval.

1. Construct backup material on the unexposed side of the shotcrete or gunite structure as the backup construction material behind the steel reinforcing bars to which the shotcrete or gunite is applied.

B. Wherever a flash coat is to be applied to a concrete surface, the concrete surface

shall be roughened texture with minimum 2” thickness.

C. The finish form, color and texture of the finish surface must meet with approval and be completed to the satisfaction of the Owner, which approval, when given, must be in writing. Contractor shall bear all costs of any and all work required to secure such approval.

D. Reinforcing bars shall be placed and bent around circles and curves, openings,

corners, and angles to conform to the drawings. Bends are to be permanently shaped, not sprung into place. Particular attention shall be made to follow the outline of the stratified rock formations to eliminate excess not –reinforced rockwork outcroppings.

1. The tie bars and tie anchors which are exposed to air and which do NOT come in contact with any backfill material shall be given a


03 35 29-7

protective covering of asphalt coating of at least one heavy coat or Rustoleum, or equal.

2. Tie bars and tie anchors which come in contact with backfill material shall be encased with a coating of shotcrete. Steel shall be covered by a minimum of 1” of shotcrete or gunite.

PART 3 EXECUTION 3.1 SUBGRADE

A. Subgrade to meet requirements of project’s soils report. B. Ensure that a minimum 2-inch layer of graded washed concrete sand compacted

to 95 percent relative compaction is placed over subgrade prior to placing concrete.

C. Screed sand to a smooth plane. D. Ensure that utilities, including irrigation lines are buried and compacted below

bottom of sand layer.

E. Keep sand damp prior to placing concrete. 3.2 FORMING A. Be responsible for design and engineering of form work as well as its

construction.

B. Ensure that Work conforms to recommended practice for concrete form work (ACI 347), latest edition.

C. Do not exceed 20-feet by 20-feet in a formed construction area. D. Ensure that form lumber is new #2 or better grade wood. Do not use used form

lumber. E. Perform form layout with a digital electronic transit for line layout accuracy. F. Allow forms to remain in place long enough to allow concrete to set properly.

Remove forms when appropriate. 3.3 DESIGN OF MIXES AND PROPORTIONING A. Proportion and mix of cement, aggregate, admixture and water to attain required

plasticity and strength in accordance with current edition of ACI Manual of Concrete Practice and PCA "Design and Control of Concrete Mixtures."

B. Concrete mixtures to be designed by an approved commercial testing laboratory,

using approved materials to obtain specified minimum compressive strength. 3.4 CURING


03 35 29-8

A. After exposure, cure concrete for a minimum of seven (7) days (or longer) without foot traffic and a minimum of thirty (30) days or longer without vehicular traffic for all Architectural Cast-in-place areas. If a curing compound is required, refer to Section 2.12 of this specification for acceptable curing compounds for use with Lithocrete. Contractor shall verify these suggested time frames and shall coordinate this schedule with other related construction.

3.5 SEALING

A. Use Ashford Formula, a water-based, chemically reactive penetrating sealer and hardener that densifies concrete to seal against water molecules, but allows air and water vapor to pass, so that concrete can achieve full compressive strength for minimized surface crazing and elimination of dusting.

B. Comply with manufacturer’s product data, including product technical bulletins,

product catalog installation instructions and product carton instructions for installation, including protection.

C. Apply cure-seal hardener to new concrete as soon as the concrete is firm enough

to work on after troweling; with colored concrete, wait a minimum of 30 days before application.

1. Spray on at rate of 200 ft2/gal (5 m2/L).

2. Keep surface wet with cure-seal-hardener for a minimum soak-in period of 30 minutes without allowing it to dry or become slippery. If slipperiness occurs before the 30 minute time period has elapsed, apply additional cure-seal-hardener, as needed, to keep the entire surface in a non-slippery state for the first 15 minutes; for the remaining 15 minutes, mist the surface as needed with water to keep the material in a non-slippery state. In hot weather conditions, follow manufacturer’s special application procedures.

3. When the treated surface becomes slippery after this period, lightly mist with water until slipperiness disappears.

4. Wait for surface to become slippery again, and then flush entire surface with water to remove all cure-seal-hardener residue.

5. Squeegee surface completely dry, flushing any remaining slippery areas until no residue remains.

6. Wet vacuum or scrubbing machines can be used in accordance with manufacturer’s instructions to remove residue.

END OF SECTION

CSK-01

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LOT#1: RP.B0116099 | LOT#2: RP.B0118006ROBERT “BOB” PRICE PARK IMPROVEMENTS

& SPRAY FEATURE

C2.02DEMOLITION PLANSSHEET 2 OF 3

ADDED NOTE TO REMOVE EXISTING DRINKINGFOUNTAIN AS INDICATED

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C3.01UTILITY PLANSSHEET 1 OF 1

UPDATED SAND-OIL SEPARATOR SPECIFICATION TOINCLUDE THE VOLUME - 1,000 GALLON

1A

- 1,000 GALLON

EXT.

PE-201

PE-202

PE-203

PE-203

PE-214

PE-204

PE-205

PE-215

PE-203

PE-210

PE-204

PE-211 PE-212

PE-213

PE-209

PE-218

PE-216

PE-217

SC-101

SC-101

SC-101

SC-101

SC-101

SC-101

SC-101

PE-101

PE-101

PE-219

PE-220

PE-221

PE-222

PE-223

PE-224

PE-225

PE-226

PE-221

A

A

A

A

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L1.07PLAYGROUND ELEMENT LAYOUT

PLAY EQUIPMENT LAYOUT RECONFIGURED AND ROCKFORMATION UPDATES

*HALF-SIZE SCALE FOR SKETCH

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L1.07PLAYGROUND ELEMENT LAYOUT

ADDED VISUAL EXAMPLES OF "LOG STACK"LANDSCAPE STRUCTURE

EXAMPLES OF PE-216 LANDSCAPE STRUCTURES CUSTOM GFRC LOGSTACK (SCULPTED PAUX ROCK MOUNDS W/ PLASTER FACE BY OTHER)

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L1.09FAUX ROCK STRUCTURES

ROCK FORMATIONS REDUCED TO ACCOMMODATEPLAY EQUIPMENT SAFETY ZONES


C

E

F

G

D

A

H

I

B

M

N

O

P

Q

J

K

L

A1

A2

A3

A4B1

B2

B3B4

C1

C2

C3

C4

D1

D2

D3

D4

E1

E2

E3

E4

F1F2

G1G2

H1H2

I1

I2

I3

I4

J1J2

K1

K2

K3K4

L1 L2

M1 M2

M3

M4

N1

N2

N3

N4

O1

O2

O3

O4

P1P2

P3P4

Q1

Q2

F3

F4

KEY MAP - FAUX ROCK SECTIONSSCALE: 1" = 30'-0"

SLOPE AWAY FROM CENTER OF EACHROCK STRUCTURE FOR DRAINAGE RUNOFF

A1

4'-6"1'-6"

1'-6"

3'

1'-6"

1'-6"

4'-6"

1'-6"

1'-6"

FAUX ROCK SECTION 'P'SCALE: 14" = 1'-0"

FAUX ROCK SECTION 'Q'

Q1 Q2

SLOPE AWAY FROM CENTER OF EACHROCK STRUCTURE FOR DRAINAGE RUNOFF

P1 P2 P3 P4

A

A

SCALE: 14" = 1'-0"

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L4.02PLANTING DETAILS

ADDED DETAIL FOR SAFETY SURFACING

1

SAFETY SURFACING NOTES:1. CONSTRUCTION MANAGER SHALL APPROVE FORM WORK PRIOR TO

PLACING CONCRETE2. CONCRETE IS TO BE TYPE V. 2500 PSI @ 28 DAYS MIN3. EXPANSION JOINTS AT EACH POST4. ALL SPILL OF EXCESS CONCRETE SHALL BE CLEANED UP AND REMOVED

FROM SITE BY THE CONTRACTOR5. GRADING AT CURB SHALL BE BY THE CONTRACTOR6. CONTRACTOR SHALL INSTALL SAFETY SURFACE AT A DEPTH THAT IS AN

ADDITIONAL 2" BEYOND THE MANUFACTURER'S SPECIFICATIONS ANDRECOMMENDATIONS

7. THIRD PARTY FALL HEIGHT/ATTENTUATION TEST AFTER INSTALL ANDPRIOR TO SUBSTANTIAL COMPLETION AND ONE YEAR LATER

CONTRACTOR TO PROVE 12"X12" SQUARE SAMPLES OF SAFETYSURFACE PATTERNS AND COLOR PRIOR TO INSTALLATION.

SAFETY SURFACINGN.T.S.

THICKNESS REFER TO IPEMA H.I.C.REQUIREMENTS FOR FALL HEIGHTS OF8'-0". SAFETY SURFACE TO SIT ON TOPMINIMUM 2" CONCRETE SLURRY

TOP TPV COATING. SEE IPEMARECOMMENDATIONS

CONCRETE WALKWAY

10"

2"

MIN

.VARIE

S

COLOR: GREEN BLEND

COMPACTED NATIVE GRADE

EP-BO2-50

ASK-01

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AS1.01ARCHITECTURAL SITE PLAN

ADDED NOTE TO REMOVE EXISTING DRINKINGFOUNTAIN AS INDICATED

A2.01

A

A1.01

A

16

22

28

23

23

37

35

S

S

A1

KEYNOTESREPRESENTATIVE

37 EXISTING DRINKING FOUNTAIN TO BE REMOVED 1

ASK-02

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AS1.03ENLARGED PLAYGROUND ADARAMP PLANS AND DETAILS

REVISED LAYOUT OF PLAY EQUIPMENT TO ADA RAMP,INCLUDING CLARIFYING DIMENSIONS


AS1.032

AS1.033

AS1.034

2' -

9"

22' -

0"

2' - 6"

20' - 0"2' - 6"

3' -

6"

30' -

0"

2' -

6" 75°

105°

8

AS1.03

4

5' -

0"8'

- 0"

6

7

TYP

7

SCALE: 1/8" = 1'-0"1 OVERALL ACCESSIBLE PLAYGROUND RAMP PLAN

AS

6"

3' - 6"

6"

TYP

4' - 6"

6' -

6"

6' - 6"

75°

1

2

3

± 22"

TYP

12

TYP

11

TYP

TYP

14

EQ

EQ

EQ

EQ

EQ

EQ

1' - 0"

EQ

EQ

4' -

6"

11

TYP

SCALE: 1/2" = 1'-0"2 ENLARGED PLAYGROUND RAMP A

5' - 5"

6' -

6"

1' - 0"

105°

3

± 42"

12

TYP

10

5

11

TYP

1

TYP

2

TYP

14

1' - 0"

EQ

EQ

3' -

0"

5

EQ

EQ

1' -

3"

SCALE: 1/2" = 1'-0"3 ENLARGED PLAYGROUND RAMP B

6' - 6"

7' - 6"

4' - 3 1/2"

1

12

3

± 72"

135 °

89

9

1

TYP TYP

TYP

2

TYP

13

TYP

14

6"

3' - 8"

2' - 4"

EQ

EQ3' - 3"

SCALE: 1/2" = 1'-0"4 ENLARGED PLAYGROUND RAMP C

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S1.02STRUCTURAL ENLARGED PLANS

GRAPHICALLY UPDATE ADA RAMP LANDING ANDMOVED CURB OPENING

ADA PLAYGROUND RAMP - ENLARGED SITE PLAN

A

2

1

SECTION

4

A

A

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& SPRAY FEATURE

S2.02STRUCTURAL DETAILS

UPDATED DETAIL TO MATCH NEW LANDING SIZE ANDCLARIFIED CURB REQUIREMENTS

SECTION

4

1

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& SPRAY FEATURE

E5.00ELECTRICAL SINGLE LINEDIAGRAM

UPDATED PANEL SCHEDULE AND LOAD ON MAINSWITCHBOARD PER REVISED FIXTURES


SCALE: NONE1 ELECTRICAL SINGLE LINE DIAGRAM

1

1

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& SPRAY FEATURE

E6.00LUMINAIRE SCHEDULE

UPDATED LUMINAIRE SCHEDULE PER REVISEDFIXTURES


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sfi1819081210460 - clark county...lot # 2: robert “bob” price park improvements (snplma) -...

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