Pages_from_02-118064_WELL_SPC_VOL_1_A_-_Resinous_flooring.pdf

SECTION 09 67 23

RESINOUS FLOORING - URETHANE

PART 1 - GENERAL

1.01 SUMMARY

A. Section Includes

1. Trowel applied monolithic urethane flooring.

2. Perimeter edging and integral 1/2 inch coved base.

B. Related Sections:

1. Section 09 05 61 - Common Work Results for Flooring Preparation.

1.02 REFERENCE STANDARDS

A. Conform to current adopted reference standards by date of issue of the current code cycle and the date of the Contract Documents.

B. ASTM - American Society for Testing and Materials

1. ASTM C1028 - Static Coefficient of Friction of Ceramic Tile and Other Like

Surfaces by the Horizontal Dynamometer Pull-Meter Method

2. ASTM D2240 - Test Method for Rubber Property - Durometer Hardness.

3. ASTM E648 - Critical Radiant Flux of Floor Covering Systems

4. ASTM E662 - Standard Test Method for Specific Optical Density of Smoke

Generated by Solid Materials.

C. ADA - Americans with Disabilities Act of 1990 as amended

1. ADA Standards - ADA Title II Regulations and the 2010 ADA Standards for

Accessible Design.

D. CBC - 2016 California Building Code

1. CBC-8 - CBC Chapter 8, Interior Finishes

2. CBC-11B - CBC Chapter 11B, Access to Public Buildings, Public

Accommodations, Commercial Facilities and Publicly Funded Housing

E. CFC - 2016 California Fire Code

F. NFPA - National Fire Protection Association

1. NFPA 253 - Critical Radiant Flux of Floor Covering Systems Using a Radiant

Heat Energy Source

G. SMAQMD - Sacramento Metropolitan Air Quality Management District Regulations.

1.03 SUBMITTALS

A. Action Submittals

1. Product Data for each system component and accessory item

2. Certified Copies of Field Quality Assurance Test Reports

5040001 RESINOUS FLOORING - URETHANE

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B. Information Submittals

1. Manufacturer’s Installation Instructions

2. Certificates of Compliance regarding specified performance requirements

C. Closeout Submittals

1. Manufacturer's Maintenance Instructions

1.04 QUALITY ASSURANCE

A. Flooring system components shall be compliance with VOC content limits in

SMAQMD.

B. Installed flooring system shall have ASTM C1028, Coefficient of Friction, as follows.

1. Dry/Level Surfaces: 0.6, minimum.

2. Wet/Sloped Surfaces: 0.8, minimum.

C. Installed flooring system shall be CBC-8, Section 804.1, Class A interior finish with the following surface burning characteristics.

1. ASTM E648, Critical Radiant Flux: NFPA 253, Class II, minimum 0.22 watts per square centimeter.

2. Smoke density not greater than 450 when tested in accordance with ASTM E662.

D. Manufacturer: company with minimum 10 - years’ experience manufacturing poured epoxy flooring for commercial projects similar in scale and complexity to those required for this Project.

E. Installer: company with minimum 5 years’ experience installing poured epoxy flooring for commercial , DSA inspected, Projects similar in scale and complexity to those required for this Project.

1. Installer: approved by the materials manufacturer.

2. Installer shall have completed at least 5 comparable projects that are more than

2-years old; submit list with names and telephone numbers of knowledgeable client contacts.

F. Field Sample. For each color and finish of fluid applied flooring, install a Field Sample with one corner as an exploded view showing each step in the process of surface preparation and installation.

1. Size: minimum 4- by 5-feet.

2. Location: acceptable to Architect.

3. Modify materials and methods of installation for each Field Sample as required to obtain Architect’s approval.

4. Document materials and methods used to obtain Architect’s approval of each

Field Sample. Maintain at least one copy of these documents in a readily accessible location on Site while this work is in progress.

5. Maintain access to and protect Field Sample from damage while this work is in progress.

6. Upon acceptance of related work, Field Sample that remains in acceptable condition may remain as part of the work.

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1.05 DELIVERY, STORAGE AND HANDLING

A. Deliver materials in un-opened containers, factory mixed and packaged.

B. Store materials in a dry, secure area.

1.06 project REQUIREMENTS

A. Do not install flooring when temperature is below 60 degrees F or above 90 degrees F.

B. Maintain this temperature range, 24 hours before, during and 72 hours after installation of flooring.

C. Restrict traffic from area where flooring is being installed or is curing.

1.07 WARRANTY

A. Manufacturer shall warrant installed flooring to be and to remain free from defect for a period of one year from Date of Substantial Completion. Upon written notice from Owner, manufacturer shall promptly, without cost, and with least practicable inconvenience to Owner correct such defects.

1. Evidence of defect in material, installation or both shall be delamination from substrate or degradation of surface finish individually or in combination.

PART 2 - PRODUCTS

2.01 MANUFACTURERS

A. Acceptable Manufacturers. Products of the following manufacturers form the basis of design and quality intended for this Project.

1. Stonhard, Inc., Maple Shade, NJ

2. Or equal, approved in accordance with Division 01 requirements for substitutions.

2.02 FLOORING

A. Resinous Flooring: Stonhard Stontec TRF, minimum thickness of 3/16" comprised of a penetrating primer, mortar, undercoat, and sealer.

1. Phsyical Properties:

a. Tensile Strength, ASTM D638: 1,000 psi

b. Impact Resistance, ASTM D4226: > 160 in/lbs

c. Abrasion Resistance, ASTM D4060, CS-17: <0.03 gm max

d. Cure Rate at 77 degrees F: 4 hours for foot traffic, 12 hours for normal operations.

e. Flexural Strength, ASTM C580: 2,000 psi

f. Flexural Modulus of Elasticity, ASTM D790: 1.1 x 10^6 psi

g. Hardness, ASTM D2240, Shore D: 80

h. Flammability, ASTM E648: Class I

i. Compressive Strength, ASTM C579: 5,000 psi after 7 Days

2. System Components:

a. Primer: Three-component urethane primer.

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b. Mortar Base: Four-component urethane mortar consisting of urthane resin, curing agent, and aggregates.

1) Thickness: 1/8"

c. Undercoat: Two-component, 100% solid epoxy resin consisting of resin and curing agent.

1) Finish: Gloss

d. Broadcast Flakes: Stontec Flakes; 1/16" colored decorative flakes

e. Sealer: Stonseal CA7; aliphatic, polyaspartic urethane sealer.

1) Type: Clear

2) Finish: Gloss

3) Number of Coats: 2

3. Colors: Refer to finish schedule on Drawings.

4. Surface Texture: Refer to finish schedule on Drawings.

2.03 ACCESSORIES

A. Waterproofing Membrane: Type recommended or produced by manufacturer for flooring system, for type of service and floor condition indicated.

1. Primer: manufacturer’s standard.

B. Anti-Microbial Additive: Incorporate antimicrobial chemical additive to prevent growth of most bacteria, fungi, algae and actinomycetes.

C. Vapor Control System: per Section 09 05 61 Common Work Results for Flooring Preparation.

D. Floor transitions: Saw cut concrete and chamfer (Key in edge) to match level of existing flooring .

E. Expansion/Isolation Joint Sealant Materials: Stonflex MP7, two-component, pourable polyurethane sealant.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Verify Site conditions are ready for the work of this Section. Notify Architect and Inspector of Record at least 48-hours prior to installation of testing and at conclusion of tests.

1. Concrete shall be cured minimum 28 days prior to application of sealer.

2. Conduct ASTM F1869 calcium chloride dome tests to verify that concrete floors are dry within moisture vapor emissions limits of flooring system manufacturer.

Set one test for each 1,000 sf. of floor area but at least in four (4) in each different areas or location.

3. Conduct ASTM F710 alkalinity testing of concrete substrate; pH levels shall not exceed the recommendations of the floor coating manufacturer, the adhesive manufacturer, or both.

4. Conduct Relative Humidity Test Method in accordance with ASTMF2170 with a Wagner Rapid RH probe to verify relative humidity and surface pH, ASTM F710, of concrete floor slabs, the method

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a. Requires drilling holes at diameter not to exceed outside diameter of probe by more than 0.04 inch to depth equal to 40 percent of slab's thickness (elevated structural slab shall be tested at depth equal to 20 percent of slab thickness).

b. Place probe to full depth of test hole, place cap over probe.

c. Permit test site to acclimate, or equilibrate, for 72 hours prior to taking relative humidity readings.

d. Remove cap and press button on the probe to obtain reading.

e. Relative humidity readings for substrates receiving non-permeable flooring are 75% or lower.

f. Testing shall require 3 tests in first 1,000 square feet, with one additional test per each additional 1,000 square feet of concrete slab surface.

g. Alkalinity testing: follow procedures per ASTM F710, ranges shall not exceed those recommended by the flooring manufacturer.

B. Do not begin installation until unsatisfactory conditions are corrected. Beginning installation means acceptance of existing conditions and preparatory work of others.

3.02 PREPARATION:

A. Install Vapor Emission Treatment Systems per Section 09 05 61.

B. Clean substrate; remove dirt, oil, grease, construction markings, and foreign matter that could adversely affect floor coating appearance or performance.

1. Surface shall be free of soil, dust, base material, oil, grease, paint, curing compounds and other foreign matter.

2. Surface shall be cleaned and allowed to dry thoroughly. Cleanse dirty or contaminated floors with approved cleaner as per manufacturer’s instructions.

Rinse thoroughly with clean water.

3. Contaminated Concrete Surfaces: clean concrete surfaces by sandblasting, steel shot-blasted, scarified, water blasted, or other approved technique by the flooring manufacturer.

C. Repair minor defects. The substrate was prepared under Section 03 30 00; remove ridges, fill depressions and repair cracks as required by floor coating manufacturer to execute specified warranty.

1. Apply, trowel and float filler to leave a smooth, flat, hard surface, free of bumps or depressions of any size.

2. Prohibit traffic from area until filler is cured.

D. Vacuum clean substrate.

E. Apply primer as recommended by the materials manufacturer.

F. Install waterproof membrane per manufacturer’s recommendations.

3.03 MIXING

A. General: Mix components only in amounts that can be applied within recommended application life.

1. Discard materials not used within application life.

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3.04 SYSTEM APPLICATION

A. General: Apply each component of resinous flooring system in compliance with manufacturer's written directions to produce a uniform monolithic wearing surface of thickness indicated, uninterrupted except at divider strips, sawn joints or other types of joints (if any), indicated or required.

B. Resinous Flooring:

1. Primer: Mix and apply primer over properly prepared substrate with strict adherence to manufacturer's installation procedures and coverage rates.

Coordinate timing of primer application with application of troweled mortar to ensure optimum adhesion between resinous flooring materials and substrate.

2. Troweled Mortar: Mix mortar material according to manufacturer's recommended procedures. Uniformly spread mortar over substrate using manufacturer's specially designed screed rake adjusted to manufacturer's recommended height.

Hand trowel apply mixed material over freshly primed substrate using steel finishing trowels or power trowel material using manufacturer's specially designed power trowel blades.

3. Under Coat: Remove any surface irregularities by lightly abrading and vacuuming the floor surface. Mix and apply undercoat with strict adherence to manufacturer's installation procedures and coverage rates.

4. Broadcast: Immediately broadcast decorative flake into the undercoat either by hand or using manufacturer's specially designed spraycaster. Strict adherence to manufacturer's installation procedures and coverage rates is imperative.

5. Sealer: Remove excess unbonded granules by lightly brushing and vacuuming the floor surface. Mix and apply sealer with strict adherence to manufacturer's installation procedures.

C. Cove Base:

1. Mix and apply cove base mortar in conjunction with mortar base of resinous flooring at the height indicated on Drawings.

D. Surface Texture:

1. Apply Sealer at a rate with non-skid aggregate to achieve the finish of samples approved from submittals.

E. Stonflex MP7:

1. Sealant: Mix and apply sealant to properly prepared cut joints (if any). The use of a polyethylene backer rod should be used in expansion and/or isolation joints.

3.05 CURING, PROTECTION AND CLEANING

A. Curing resinous flooring system in accordance with manufacturer's instructions.

B. Protect finished installation from traffic until curing is complete

C. Clean resinous flooring system with manufacturer's recommended materials and procedures.

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END OF SECTION

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