Expand Parking Garage and Add Overhead Walkway Final Construction Documents

James H. Quillen VA Medical Center, Mountain Home, TN

Contract 36C249-19-C-0168, PO 621Z90002, Project 621-332

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SECTION 07 18 00

VEHICULAR TRAFFIC COATINGS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of Contract, including General and

Supplementary Conditions and Division 01 Specification Sections apply to this Section.

1.2 SUMMARY

A. A single installer shall be responsible for providing complete water proofing system including all products specified in following

Sections:

1. Division 07 Section, “Vehicular Traffic Coatings”

2. Division 07, Section, “Pedestrian Traffic Coatings.”

3. Division 07 Section, “Water Repellents”

4. Division 07 Section, “Joint Sealants”

5. Division 07 Section, “Expansion Joint Cover Assemblies”

B. This Section includes traffic coating: Fluid applied, waterproofing, traffic-bearing elastomeric membrane with integral wearing surface, where surface to which membrane is to be applied is one or more of following:

1. Over enclosed rooms:

a. Elevator control room

b. Communications room

C. Materials shall be compatible with materials or related Work with which they come into contact, and with materials covered by this

Section.

D. Related Sections: Following Sections contain requirements that relate to this Section.

1. Division 03 Section, "Cast-in-Place Concrete."

2. Division 03 Section, "Precast Structural Pretensioned Concrete."

3. Division 07 Section, “Water Repellents”

4. Division 07 Section, “Joint Sealants”

5. Division 07 Section, “Expansion Joint Cover Assemblies”

6. Division 09 Section, "Pavement Markings."

1.3 ADMINISTRATIVE REQUIREMENTS

A. Coordination:

1. Distribute reviewed submittals to all others whose Work is related.

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B. Make submittals in accordance with requirements of Division 01

Section, “Shop Drawings, Product Data, and Samples.”

C. Submittals and Resubmittals: Engineer will review each of

Contractor’s shop drawings and/or submittal data initial time and, should resubmittal be required, one additional time to verify that reasons for resubmittal have been addressed by Contractor and corrections made. Resubmittal changes/revisions/corrections shall be circled. Engineer will review only circled items and will not be responsible for non-circled changes/revisions/corrections and additions. Should additional resubmittals be required, Contractor shall reimburse Owner for all costs incurred, including cost of

Engineer’s services made necessary to review such additional resubmittals. Owner shall in turn reimburse Engineer.

D. Requests For Information

1. Engineer reserves right to reject, unprocessed, any Request for

Information (RFI) that Engineer, at its sole discretion, deems frivolous and/or deems already answered in the Contract

Documents.

2. RFI process shall not be used for requesting substitutions.

Procedures for substitutions are clearly specified elsewhere in

Contract documents.

1.4 ACTION SUBMITTALS

A. Product Data: For each system indicated, submit the following at least

60 days prior to application.

1. Product description, technical data, appropriate applications and limitations.

2. Primer type and application rate

3. Material, and wet mils required to obtain specified dry thickness for each coat.

4. Type, gradation and aggregate loading required within each coat.

B. Samples:

1. One 4 in. by 4 in. stepped sample showing each component for each system indicated.

C. Sample Warranty: For each system indicated.

1.5 INFORMATION SUBMITTALS

A. Certificates

1. Certification that products and installation comply with applicable federal, state where project is located, and local

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EPA, OSHA and VOC requirements regarding health and safety hazards.

2. Evidence of applicator's being certified by manufacturer.

Evidence shall include complete copy of manufacturer’s licensing/certification document, spelling out repair responsibility for warranty claims.

3. Certification from Manufacturer that finishes as specified are acceptable for system to be installed at least 1 month before placement of any concrete which will receive traffic coating.

4. Certification stating static coefficient of friction meets minimum requirements of Americans with Disabilities Act (ADA).

5. Certification stating materials have been tested and listed for

UL 790 Class "A" rated materials/system by UL for traffic coating application specified on project. Containers shall bear UL labels.

6. Certification from manufacturer confirming compatibility with existing underlying coatings and/or substrate.

B. Manufacturer’s Instructions: for each system indicated.

1. Crack treatment and surface preparation method and acceptance criteria.

2. Method of application of each coat.

3. Maximum and minimum allowable times between coats.

4. Final cure time before resumption of parking and/or paint striping.

5. Any other special instructions required to ensure proper installation.

C. Field Quality Control:

1. Quality Control Plan as defined in Part 3.

2. Two copies each of manufacturer's technical representative's log for each visit.

3. Testing agency field reports.

D. Qualification Statements

1. Manufacturer’s qualifications as defined in “Quality Assurance” article.

2. Installer’s qualifications as defined in “Quality Assurance” article.

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3. Signed statement from applicator certifying that applicator has read, understood, and shall comply with all requirements of this

Section.

1.6 CLOSEOUT SUBMITTALS

A. Three copies of System Maintenance Manual.

B. Five copies of snow removal guidelines for areas covered by Warranty.

C. Final executed Warranty.

1.7 QUALITY ASSURANCE

A. Manufacturer’s Qualifications: Owner retains right to reject any manufacturer.

1. Evidence of acceptable previous work on WALKER-designed projects.

If none, so state.

2. Evidence of financial stability acceptable to Resident Engineer.

3. Listing of 20 or more projects completed with submitted system, to include:

a. Name and location of project.

b. Type of system applied.

c. On-Site contact with phone number.

B. Manufacturer's technical representative, acceptable to Resident

Engineer, shall be on site during surface preparation and initial stages of installation.

C. Installer’s Qualifications: Resident Engineer retains right to reject any manufacturer.

1. Evidence of compliance with Summary article paragraph "A single installer. . ."

2. Evidence that installer has successfully performed or has qualified staff who have successfully performed at least 5 verifiable years of installations similar to those involved in this Contract, and minimum 10 projects with submitted system.

3. Listing of 5 or more installations in climate and size similar to this Project performed by installer’s superintendent.

D. Testing Agency: Independent testing laboratory employed by Contractor and acceptable to Resident Engineer.

E. Certifications

1. Traffic coating shall satisfy current National Volatile Organic

Compound (VOC) Emission Standards for Architectural Coatings.

2. Licensing/certification document from manufacturer that confirms system installer is a licensed/certified applicator for the

07 18 00 - 5 manufacturer and is legally licensed to perform work in the state this project is being constructed.

3. Licensing/certification agreement shall include following information:

a. Applicator’s financial responsibility for warranty burden under agreement terms.

b. Manufacturer’s financial responsibility for warranty burden under agreement terms.

c. Process for dispute settlement between manufacturer and applicator in case of system failures where cause is not evident or cannot be assigned.

d. Authorized signatures for both Applicator Company and

Manufacturer.

e. Commencement date of agreement and expiration date (if applicable).

1.8 DELIVERY, STORAGE, AND HANDLING

A. Deliver all materials to site in original, unopened containers, bearing following information:

1. Name of product.

2. Name of manufacturer.

3. Date of preparation.

4. Lot or batch number.

B. Store materials under cover and protect from weather. Replace packages or materials showing any signs of damage with new material at no additional cost to Owner.

1.9 FIELD CONDITIONS

A. Weather and Substrate Conditions: Proceed with work only when existing and forecast weather and temperature of concrete substrate will permit work in accordance with manufacturer's recommendations.

1.10 WARRANTY

A. System Manufacturer New Application: Furnish Owner with written total responsibility Joint and Several Warranty, detailing responsibilities of manufacturer and applicator with regard to warranty requirements

(Joint and Several). Warranty shall provide that system will be free of defects, water penetration and chemical damage related to system design, workmanship or material deficiency, consisting of:

1. Any adhesive or cohesive failures.

2. Spalling surfaces.

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3. Weathering.

4. Surface crazing (does not apply to traffic coating protection course).

5. Abrasion or tear failure resulting from normal traffic use.

6. Failure to bridge cracks less than 0.0625 in. or cracks existing at time of traffic coating installation on double tees only.

B. If material surface shows any of defects listed above, supply labor and material to repair all defective areas and to repaint all damaged line stripes.

C. Warranty period shall be a 5 year Joint and Several Warranty commencing with date of acceptance of work.

D. Perform any repair under this warranty at no cost to Owner.

E. Address following in terms of Warranty: length of warranty, change in value of warranty – if any- based on length of remaining warranty period, transferability of warranty, responsibilities of each party, notification procedures, dispute resolution procedures, and limitations of liability for direct and consequential damages.

F. Snowplows, vandalism, studded snow tires and abnormally abrasive maintenance equipment are not normal traffic use and are exempted from warranty.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturer: Subject to compliance with requirements, provide products of 1 of following, only where specifically named in product category:

1. Advanced Polymer Technology (APT), Harmony, PA

2. BASF Building Systems (BASF), Shakopee, MN

3. Deneef Construction Chemicals (Deneef), Houston, TX.

4. Lymtal International Inc. (Lymtal), Lake Orion, MI.

5. Neogard Division of Jones-Blair Company (Neogard), Dallas, TX.

6. Pacific Polymers, Inc. a Division of ITW (Pacific Polymers), Garden Grove, CA

7. Poly-Carb Inc. (Poly-Carb), Twinsburg, OH.

8. Polycoat Products Division of Amer. Polymers (Polycoat), Santa Fe

Springs, CA.

9. Pecora Corporation (Pecora), Harleysville, PA

10. Sika Corporation (Sika), Lyndhurst, NJ.

11. Technical Barrier Systems, Inc. (TBS), Oakville, Ontario.

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12. Tremco (Tremco), Cleveland, OH.

2.2 MATERIALS, TRAFFIC COATING

A. Acceptable low odor coatings are listed below. Coatings shall be compatible with all other materials in this Section and related work.

1. Heavy Duty:

a. Autogard HD-48, Autogard E, Neogard.

b. Elasto-Deck 5000-HT, Pacific Polymers.

c. Iso-Flex 750U-HL HVT/760U-HL HVT Deck Coating System, LymTal.

d. MasterSeal Traffic 1500, BASF.

e. Qualideck Heavy Vehicular (152/252/372/512), APT

f. Sikalastic 710/715, Sika.

g. Vulkem 350/950NF/951NF Deck Coating System, Tremco.

h. Pecora-Deck 800 Series.

i. Kelmar TE Exposure 3, TBS.

j. Flexodeck Mark 170.2 Solvent Free Heavy Duty, Poly-Carb.

k. Poly-I-Gard 246HD, Polycoat.

l. Or approved equal.

2. VOC Compliant, Extreme Low Odor, High-Solids, Fast Cure, Heavy

Duty Coating System:

a. AutoGard FC HD-48, Autogard E, Neogard.

b. Flexodeck Mark 170.2, Poly-Carb.

c. Iso-Flex 760 U HL AR and 760 U HL AL, Lymtal.

d. Kelmar FCW III, Exposure 3, TBS.

e. MasterSeal Traffic 2500, BASF.

f. Qualideck Heavy Vehicular (152/252/372/512), APT

g. Sikalastic 720/745 or 390/391/395, Sika.

h. Vulkem 360NF/950NF and 951NF, Tremco.

i. Or approved equal.

B. Provide ultraviolet screening for all traffic coating placed on this project.

C. Finish top coat shall be colored grey.

2.3 MATERIALS, CRACK SEALER

A. Repair for isolated random horizontal cracks 0.01 in. to 0.06 in.

wide. Acceptable products:

1. Denedeck Crack Sealer, Deneef.

2. Iso-Flex 609 Epoxy Crack Sealer, Lymtal.

3. MasterSeal 630, BASF.

4. Sikadur 55 SLV Epoxy Crack Healer/Sealer, Sika.

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5. SikaPronto 19TF, Sika.

6. Or approved equal.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine surfaces to receive Work and report immediately in writing to

Resident Engineer any deficiencies in surface which render it unsuitable for proper execution of Work.

B. Coordinate and verify that related Work meets following requirements before beginning surface preparation and application:

1. Concrete surfaces are finished as acceptable for system to be installed. Correct all high points, ridges, and other defects in a manner acceptable to Resident Engineer.

2. Curing compounds used on concrete surfaces are compatible with system to be installed.

3. Concrete surfaces have completed proper curing period for system selected.

4. Joint Sealants are compatible with traffic coatings.

3.2 PREPARATION

A. Seal all openings to occupied space to prevent cleaning materials, solvents and fumes from infiltration. All protective measures and/or ventilating systems required to prevent infiltration are incidental to this Work.

B. Acid etching is prohibited.

C. Remove all laitance and surface contaminants, including oil, grease and dirt as specified by manufacturer’s written recommendations.

D. Before applying materials, apply system to small area to assure that it will adhere to substrate and joint sealants and dry properly and to evaluate appearance.

E. All cracks on concrete surface shall be prepared in accordance with manufacturer's recommendations.

F. Mask off adjoining surfaces not to receive traffic coating and mask off drains to prevent spillage and migration of liquid materials outside membrane area. Provide neat/straight lines at termination of traffic coating.

3.3 INSTALLATION/APPLICATION

A. Installation should include all of the following steps:

1. Surface Preparation: Prepare concrete for system application.

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2. Crack/Construction/Control/Cove Joint Sealing: Detail for crack bridging.

3. Primer Coat: Insure proper adhesion of membrane to substrate.

4. Base Coat: Provide crack spanning in conjunction with Crack

Detail noted above.

5. Aggregate Coat – to hold aggregate in system, providing skid and wear close up resistance.

6. Aggregate: Correct size, shape, hardness and amount necessary to insure proper skid and wear resistance.

7. Top Coat: Lock aggregate into place, provide a maintainable surface and provide resistance to ponding water, UV degradation, color loss and chemical intrusion.

B. Do all Work in accordance with manufacturer's written instructions and specifications including, but not limited to, moisture content of substrate, atmospheric conditions (including relative humidity and temperature), coverages, mil thicknesses and texture, and as shown on

Drawings.

C. A primer coat is required for all systems. No exception.

D. Do not apply traffic coating material until concrete has been air dried at temperatures at or above 40ºF for at least 30 days after curing period specified.

E. Cease material installation under adverse weather conditions, or when temperatures are outside manufacturer's recommended limitations for installation, or when temperature of work area or substrate are below

40ºF.

F. All adjacent vertical surfaces shall be coated with traffic coating minimum of 4 in. above coated horizontal surface. Requirement includes, but is not limited to pipes, columns, walls, curbs (full height of vertical faces of all curbs) and islands.

G. Complete all Work under this Section before painting line stripes.

H. Clean off excess material and material smears adjacent to joints as work progresses using methods and materials approved by manufacturers.

3.4 FIELD QUALITY CONTROL

A. Develop a quality control plan for assured specified uniform membrane thickness that utilizes grid system of sufficiently small size to designate coverage area of not more than 5 gallons at specified thickness. In addition, employ wet mil gauge to continuously monitor thickness during application. Average specified wet mil thickness

07 18 00 - 10 shall be maintained within grid during application with minimum thickness of not less than 80% of average acceptable thickness.

Immediately apply more material to any area not maintaining these standards.

B. Testing Agency employ wet mil gauge to periodically monitor thickness during application.

C. Install 1 trial section of coating system for each duty grade specified. Do not proceed with further coating application until trial sections accepted in writing by Resident Engineer. Remove and replace rejected trial sections with acceptable application. Trial section shall also be tested for:

1. Wet mil thickness application.

2. Adhesion to concrete substrate.

3. Overall dry mil thickness.

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07 18 13 - 1

SECTION 07 18 13

PEDESTRIAN TRAFFIC COATINGS

05-01-15

PART 1 - GENERAL

1.1 DESCRIPTION:

A. This section specifies a surface applied elastomeric and composition waterproofing type membrane suitable for light pedestrian traffic and recreation areas, but not intended for heavy industrial use.

1.2 RELATED WORK:

A. Vehicle Traffic Coatings: Section 07 18 00, Vehicular Traffic Coatings.

B. Concrete Joint Sealants; Section 07 92 00, “Joint Sealants”.

C. Expansion Joints: Section 07 95 13, “Expansion Joint Cover Assemblies.”

D. Color and Texture of Finish Coat: Section 09 06 00, SCHEDULE FOR

FINISHES.

1.3 TEST AREA:

A. Before start of general application, apply the elastomeric coating as specified in a representative test area. Provide a test area not less than 9.29 square meters (100 square feet). The area to be covered by the coating to include all site conditions such as flashings bases, corners and projections through the coating. Provide test area in location determined by the Contracting Officer Representative (Resident

Engineer). After Resident Engineer approval, area will serve as an example for the remaining work.

1.4 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturers Literature and Data: Each material, indicating compliance with specification requirements.

C. Samples: Each finish color on 101 by 203 mm (4 by 8 inch) substrate, layered to show each coat and finish.

D. Installer qualifications.

E. Manufacturer warranty.

1.5 WARRANTY:

A. Construction Warranty: Comply with FAR clause 52.246-21 “Warranty of

Construction”.

B. Manufacturer Warranty: Manufacturer shall warranty their pedestrian traffic coating for a minimum of five (5) years from the date of

07 18 13 - 2 installation and final acceptance by the Government. Submit manufacturer warranty.

1.6 DELIVERY AND STORAGE:

A. Deliver materials to the site in original sealed containers, clearly marked with manufacturer's name and brand, and type of material.

B. Store materials in weathertight and dry storage facility. Protect from damage from handling, weather and construction operations before, during and after installation. Store materials at temperatures and under conditions recommended by the manufacturer.

1.7 ENVIRONMENTAL REQUIREMENTS:

A. Do not proceed with application of materials when ambient temperature is less or greater than that recommended by the coating material manufacturer. Do not apply traffic coatings to damp or wet substrates, when relative humidity exceeds 85 percent, or when temperatures are less than 3 deg C (5 deg F) above dew point.

1.8 SAFETY REQUIREMENTS:

A. Keep products away from heat, sparks and flame. Do not permit use of spark-producing equipment during application of flammable products or where explosive fumes are present.

1.9 Quality Assurance:

A. Manufacturer’s Qualifications: Obtain products from single manufacturer or from sources recommended by manufacturer for use with pedestrian traffic coatings system and incorporated in manufacturer’s warranty.

B. Installer’s Qualifications: Work to be performed by installer having three (3) years’ experience for work relating to this section and approved in writing by traffic coating manufacturer.

1.10 APPLICABLE PUBLICATIONS:

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by basic designation only.

B. ASTM International (ASTM):

C794-10.................Adhesion-in-Peel of Elastomeric Joint Sealants

D412-06a(R2013).........Vulcanized Rubber and Thermoplastic Elastomers-

Tension

D2240-05(R2010).........Rubber Property - Durometer Hardness

E96/E96M-13.............Water Vapor Transmission of Materials

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PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturer: Subject to compliance with requirements, provide products of 1 of following, only where specifically named in product category:

1. Advanced Polymer Technology (APT), Harmony, PA

2. BASF Building Systems (BASF), Shakopee, MN

3. Deneef Construction Chemicals (Deneef), Houston, TX.

4. Lymtal International Inc. (Lymtal), Lake Orion, MI.

5. Neogard Division of Jones-Blair Company (Neogard), Dallas, TX.

6. Pacific Polymers, Inc. a Division of ITW (Pacific Polymers), Garden

Grove, CA

7. Poly-Carb Inc. (Poly-Carb), Twinsburg, OH.

8. Polycoat Products Division of Amer. Polymers (Polycoat), Santa Fe

Springs, CA.

9. Pecora Corporation (Pecora), Harleysville, PA

10. Sika Corporation (Sika), Lyndhurst, NJ.

11. Technical Barrier Systems, Inc. (TBS), Oakville, Ontario.

12. Tremco (Tremco), Cleveland, OH.

2.2 MATERIALS, TRAFFIC COATING

A. Acceptable low odor coatings are listed below. Coatings shall be compatible with all other materials in this Section and related work.

1. Medium Duty:

a. Autogard, Neogard.

b. Elasto-Deck 5000-HT, Pacific Polymers.

c. Iso-Flex 750U-HL MVT/760U-HL MVT Deck Coating System, LymTal.

d. MasterSeal Traffic 1500, BASF.

e. Qualideck Medium Vehicular MD-55 (152/252/372/512), APT

f. Sikalastic 710/715, Sika.

g. Vulkem 350NF/386/346 Deck Coating System, Tremco.

h. Kelmar TE Exposure 2, TBS.

i. Pecora-Deck 800 Series, Pecora.

j. Flexodeck Mark 170.2 Solvent Free Medium Duty, Poly-Carb.

k. Poly-I-Gard 246MD, Polycoat.

l. Or approved equal.

B. Provide ultraviolet screening for all traffic coating placed on this project.

C. Finish top coat shall be colored grey.

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2.3 PRIMER:

A. Type required by the elastomeric coating manufacturer.

2.4 ELASTOMERIC BASE AND TOP COAT:

A. Provide elastomeric base and topcoat materials to meet or exceed the following requirements:

Property Test Method Base Coat Top Coat

Tensile

Strength

ASTM D412 2068 kPa (psi) 4136 kPa (600 psi)

Elongation, percent (of original benchmark distance)

ASTM D412 550 200

Hardness, Shore A

ASTM D2240 20 45

Peel Strength

(on concrete)

ASTM C794 13.6 kg

(30 lb.), 100 percent cohesion

100 percent cohesion to base coat

Permeability ASTM E96/E96M 12 metric perms 0.06 metric perms

2.5 AGGREGATE:

A. Thoroughly washed, clean, medium-grained sharp indigenous stone granules, graded between 1 mm (.04 inch) and 4 mm (.16 inch) in size, and having a hardness of 6.5 or greater on the Moh's scale.

PART 3 - EXECUTION

3.1 SURFACE PREPARATION:

A. Apply to clean, dry surfaces. Smooth rough spots and tool marks.

B. Fill holes, depressions and cracks with fillers compatible with the coating material and recommended by the coating manufacturer.

C. Subsurface imperfections that telegraph through the finish coating surface are not acceptable.

D. Seal all openings to occupied space to prevent cleaning materials, solvents and fumes from infiltration. All protective measures and/or ventilating systems required to prevent infiltration are incidental to this Work.

E. Acid etching is prohibited.

F. Remove all laitance and surface contaminants, including oil, grease and dirt as specified by manufacturer’s written recommendations.

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G. Remove all debonded traffic coatings. Remove all laitance and surface contaminants, including oil, grease and dirt, by shot-blasting and appropriate degreasers, or as specified by manufacturer’s written recommendations to provide warranty.

H. Before applying materials, apply system to small area to assure that it will adhere to substrate and joint sealants and dry properly and to evaluate appearance.

I. All random cracks on concrete surface less than 0.03 in. wide and showing no evidence of water and/or salt water staining on ceiling below shall receive detail coat unless more complete treatment required in accordance with manufacturer's recommendations. Rout and seal random cracks, construction joints and control joints prior to installation of primer or base coat. Crack preparation including installation of joint sealant material, where required, is incidental to traffic coating work.

J. Mask off adjoining surfaces not to receive traffic coating and mask off drains to prevent spillage and migration of liquid materials outside membrane area. Provide neat/straight lines at termination of traffic coating.

K. Do all Work in accordance with manufacturer’s written instructions and specifications including, but not limited to, moisture content of substrate, atmospheric conditions (including relative humidity and temperature), coverages, mil thicknesses and texture, and as shown on

Drawings.

L. Do not apply traffic topping material until concrete has been air dried at temperatures at or above 40 deg. F. for at least 30 days after curing period specified.

M. Cease material installation under adverse weather conditions, or when temperatures are outside manufacturer’s recommended limitations for installation, or when temperature of work area or substrate are below

40 deg. F.

N. All adjacent vertical surfaces shall be coated with traffic topping minimum of 4 in. above coated horizontal surface. Requirement includes, but is not limited to pipes, columns, walls, curbs (full height of vertical faces of all curbs) and islands.

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3.2 WORK COORDINATION:

A. To provide a watertight installation, coordinate this work with flashing and drains required to be installed before the coating work begins and be completed after the coating is in place.

3.3 APPLICATION:

A. Prime surfaces to receive elastomeric waterproofing materials per manufacturer’s directions. A primer coat is required for all systems.

No exceptions.

B. Where horizontal surfaces intersect vertical surfaces, provide a sealant type fillet as recommended by the manufacturer.

C. Apply elastomeric base coat at a rate that will ensure a dry film thickness of not less than 0.9 mm (35 mils).

D. Uniformly disperse aggregate topping at the rate of 0.5 Kg per sq. m

(10 lbs./100 sq. ft.); inter-bond and vulcanize granules within the fluid elastomeric topping in accordance with manufacturer's instructions.

E. Apply elastomeric top coat at a rate which will ensure a dry film thickness of 0.4 mm (15 mils) for the top coat and a total combined dry film thickness for the base and top coats of not less than 1.3 mm (50 mils).

F. Complete the base to a uniform established line as shown.

G. Do all Work in accordance with manufacturer's written instructions and specifications including, but not limited to, moisture content of substrate, atmospheric conditions (including relative humidity and temperature), coverages, mil thicknesses and texture, and as shown on

Drawings.

H. Do not apply traffic coating material until concrete has been air dried at temperatures at or above 40ºF for at least 30 days after curing period specified.

I. Cease material installation under adverse weather conditions, or when temperatures are outside manufacturer's recommended limitations for installation, or when temperature of work area or substrate are below

40ºF.

J. All adjacent vertical surfaces shall be coated with traffic coating minimum of 4 in. above coated horizontal surface. Requirement includes, but is not limited to pipes, columns, walls, curbs (full height of vertical faces of all curbs) and islands.

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3.4 FIELD QUALITY CONTROL

A. Develop a quality control plan for assured specified uniform membrane thickness that utilizes grid system of sufficiently small size to designate coverage area of not more than 5 gallons at specified thickness. In addition, employ wet mil gauge to continuously monitor thickness during application. Average specified wet mil thickness shall be maintained within grid during application with minimum thickness of not less than 80% of average acceptable thickness.

Immediately apply more material to any area not maintaining these standards.

B. Testing Agency employ wet mil gauge to periodically monitor thickness during application.

3.5 CLEANING:

A. Remove smears of elastomeric material from other work.

3.6 PROTECTION:

A. Protect the finished coating from traffic until the coating cures and afterward until final acceptance.

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