Attachment 10 - Technical Specification 09 67 23.13 - Standard Resinous Flooring.pdf

SECTION 09 67 23.13 Page 1

SECTION TABLE OF CONTENTS

DIVISION 09 - FINISHES

SECTION 09 67 23.13

STANDARD RESINOUS FLOORING

11/19

PART 1 GENERAL

1.1 REFERENCES

1.2 ADMINISTRATIVE REQUIREMENTS

1.2.1 Pre-Installation Meetings

1.2.2 Product Data

1.2.3 Design Mix Data

1.3 SUBMITTALS

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 QUALITY CONTROL

1.5.1 Mockups

1.5.2 Qualifications

1.5.3 Sampling

1.6 WARRANTY

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.2 MATERIALS

2.2.1 Mixes

2.2.1.1 Epoxy-Resin Binder/Matrix

2.2.1.2 Cured Epoxy Binder

2.2.1.3 Aggregate

2.2.1.4 Surface Sealing Coat

PART 3 EXECUTION

3.1 PREPARATION

3.1.1 Safety Precautions

3.1.2 Protection of Adjacent Surfaces

3.1.3 Concrete Subfloor

3.1.3.1 New Concrete Floors

3.1.3.2 Existing Concrete Floors

3.1.4 Steel Subfloor

3.1.5 Mixing Of Materials

3.2 APPLICATION

SECTION 09 67 23.13 Page 2

3.2.1 Areas of Application

3.2.2 Application of Prime Coat and Troweling

3.2.3 Sealer Coat

3.2.4 Integral Cove Base

3.3 FIELD QUALITY CONTROL

3.3.1 Repairing

3.4 ADJUSTING AND CLEANING

-- End of Section Table of Contents --

SECTION 09 67 23.13 Page 3

SECTION 09 67 23.13

STANDARD RESINOUS FLOORING

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PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM A990/A990M (2018) Standard Specification for

Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure-Retaining Parts for Corrosive Service

ASTM C881/C881M (2015) Standard Specification for

Epoxy-Resin-Base Bonding Systems for Concrete

ASTM D445 (2018) Standard Test Method for Kinematic

Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)

ASTM D523 (2014; R 2018) Standard Test Method for

Specular Gloss

ASTM D570 (1998; E 2010; R 2010) Standard Test Method for Water Absorption of Plastics

ASTM D638 (2014) Standard Test Method for Tensile

Properties of Plastics

ASTM D696 (2016) Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between -30 degrees C and 30 degrees C With a Vitreous Silica Dilatometer

ASTM D1475 (2013) Standard Test Method for Density of

Liquid Coatings, Inks, and Related Products

ASTM D1544 (2004; R 2010) Standard Test Method for Color of Transparent Liquids (Gardner Color Scale)

ASTM D1652 (2011; E 2012) Standard Test Method for

Epoxy Content of Epoxy Resins

ASTM D2240 (2015; E 2017) Standard Test Method for Rubber Property - Durometer Hardness

ASTM D2471 (1999) Standard Test Method for Gel Time and Peak Exothermic Temperature of Reacting Thermosetting Resins

SECTION 09 67 23.13 Page 4

ASTM D4259 (2018) Standard Practice for Preparation of Concrete by Abrasion Prior to Coating Application

ASTM F1869 (2016) Standard Test Method for Measuring

Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride

ASTM F2170 (2019) Standard Test Method for

Determining Relative Humidity in Concrete Floor Slabs Using in situ Probes

SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 6/NACE No.3 (2007) Commercial Blast Cleaning

1.2 ADMINISTRATIVE REQUIREMENTS

1.2.1 Pre-Installation Meetings

Pre-installation Conference: Conduct conference at Project site.

1.2.2 Product Data

Within 15 days of contract award, submit manufacturer's catalog data for the following items:

a. Epoxy-Resin Binder/Matrix

b. Cured Epoxy Binder

c. Aggregate

d. Surface Sealing Coat

1.2.3 Design Mix Data

Within 15 days of contract award, submit design mix data for the following items, including a complete list of ingredients and admixtures:

c. Surface Sealing Coat

Ensure applicable test reports verify the mix has been successfully tested and meets design requirements.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

PROCEDURES:

SD-03 Product Data

SECTION 09 67 23.13 Page 5

Manufacturer's Catalog Data; G

SD-05 Design Data

Design Mix Data; G

SD-07 Certificates

Referenced Standards Certificates

SD-11 Closeout Submittals

Warranty; G

1.4 DELIVERY, STORAGE, AND HANDLING

Protect materials from weather, soil, and damage during delivery, storage, and construction. Deliver materials in original packages, containers, or bundles bearing brand name and name of material.

Maintain materials used in the installation of floor topping at a temperature between 65 and 85 degrees F.

1.5 QUALITY CONTROL

Prior to commencement of work, submit referenced standards certificates for the following, showing conformance with the referenced standards contained in this section:

c. Aggregate

d. Surface Sealing Coat

1.6 WARRANTY

Submit a 1 year written warranty for all materials and Installation work.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Submit installation drawings for heavy duty epoxy flooring systems clearly designating the areas of application and the installation plan. Include in the installation plan, methods to control sand and dust if sand blasting is required.

2.2 MATERIALS

2.2.1 Mixes

2.2.1.1 Epoxy-Resin Binder/Matrix

Provide a clear two-component compatible system epoxy resin binder consisting of: (1) a liquid blend of a biphenyl-based epoxy resin and an

SECTION 09 67 23.13 Page 6 aliphatic polyglyceride ether, and (2) a liquid blend of two modified amine curing agents, which individually cures the epoxy resin at room temperature to a glossy smooth film. Ensure the two components and the cured epoxy binder have the following physical properties:

PROPERTY

TEST METHOD

REQUIREMENT

COMPONENT A (EPOXY RESIN)

Viscosity (kinematic), at 25 degrees C, millipascal-second

ASTM D445 3000 to 5000

Weight per epoxide, grams ASTM D1652 205 to 225

Color (Gardner Color Scale), maximum

ASTM D1544 5

Weight per milliliter, grams ASTM D1475 1.13 - 1.15

COMPONENT B (CURING AGENT)

Viscosity (kinematic), at 25 degrees C, square milliliter per second

ASTM D445 75 to 125

Weight per milliliter, grams ASTM D1475 0.90 to 0.91

Color (Gardner Color Scale), maximum

ASTM D1544 8

PROPERTY

TEST METHOD

REQUIREMENT

COMPONENT A (EPOXY RESIN)

Viscosity (kinematic), at 77 degrees F, centipoises

ASTM D445 3000 to 5000

Weight per epoxide, grams ASTM D1652 205 to 225

Color (Gardner Color Scale), maximum

ASTM D1544 5

Weight per gallon, pounds ASTM D1475 9.46 - 9.56

COMPONENT B (CURING AGENT)

Viscosity (kinematic), at 77 degrees F, centistokes

ASTM D445 75 to 125

Weight per gallon, pounds ASTM D1475 7.50 to 7.60

Color (Gardner Color Scale), maximum

ASTM D1544 8

2.2.1.2 Cured Epoxy Binder

SECTION 09 67 23.13 Page 7

Provide a cured epoxy binder with the following properties.

PROPERTY TEST METHOD REQUIREMENT

Water absorption, percent 24 hours at 25 degrees C, maximum

ASTM D570 0.40

Hardness, Shore D ASTM D2240 74 to 82

Linear shrinkage, millimeter/millimeter, maximum

ASTM C881/C881M 0.15

Shrinkage, glass bow, milli-meter divergence, maximum

ASTM A990/A990M 0.40

Coefficient of linear thermal expansion, mm/mm/degrees C, maximum

ASTM D696

0 degrees C to 40 degrees C

200 X 10-6

Gel time/peak exotherm at 25 degrees C, 100 gm mass in 120 millimeter metal container

ASTM D2471 20 to 40 minutes at 150 degrees C, maximum

*3 millimeter thick castings

**3 by 25 by 80 millimeter castings, aged in forced draft oven

PROPERTY TEST METHOD REQUIREMENT

Tensile strength, psi* at test temperature:

77 degrees F

ASTM D638 4500 to 6500

Tensile elongation, percent* at test temperature: 77 degrees F

ASTM D638 20 to 40

Water absorption, percent 24 hours at 77 degrees F, maximum

ASTM D570 0.40

Hardness, Shore D ASTM D2240 74 to 82

Linear shrinkage, inch/inch maximum

ASTM C881/C881M 0.006

Shrinkage, glass bow, inch divergence, maximum

ASTM A990/A990M 0.016

SECTION 09 67 23.13 Page 8

Shrinkage, glass bow, inch divergence, maximum

ASTM A990/A990M 0.016

Shrinkage, glass bow, inch divergence, maximum

ASTM A990/A990M 0.016

*1/8 inch thick castings

**1/8 by 1 by 3 inch castings, aged in forced draft oven

2.2.1.3 Aggregate

Provide aggregate recommended by the resinous flooring manufacturer and approved by the Contracting Officer. Deliver aggregate to the site in three separate package gradations for blending. Gradations are:

PERCENT

SIEVE SIZE MAXIMUM MINIMUM

GRADUATION NO. 1

Retained on 3.35 millimeter 0.0 -

Passing 3.35 millimeter, retained on 2.36 millimeter

5.0 0.0

Passing 2.36 millimeter, retained on 1.7 millimeter

100.0 74.0

Passing 850 micrometer 1.0 -

GRADATION NO. 2

Retained on 1.18 millimeter 0.0 -

Passing 1.18 millimeter, retained on 1.0 millimeter

5.0 0.0

Passing 1.0 millimeter, retained on 425 micrometer

100.0 85.0

Passing 425 micrometer, retained on 250 micrometer

9.0 0.0

Passing 250 micrometer 1.0 -

GRADATION NO. 3

Retained on 850 micrometer 0.0 -

PERCENT

SIEVE SIZE MAXIMUM MINIMUM

Passing 850 micrometer, retained on 500 micrometer

5.0 0.0

Passing 500 micrometer, retained on 250 micrometer

100.0 80.0

SECTION 09 67 23.13 Page 9

Passing 250 micrometer, retained on 150 micrometer

13.0 0.0

Passing 150 micrometer 2.0 -

PERCENT

SIEVE SIZE MAXIMUM MINIMUM

GRADUATION NO. 1

Retained on No. 6 0.0 -

Passing No. 6, retained on No. 8 5.0 0.0

Passing No. 8, retained on No. 12 100.0 74.0

Passing No. 20 1.0 -

GRADATION NO. 2

Retained on No. 16 0.0 -

Passing No. 16, retained on No. 18 5.0 0.0

Passing No. 18, retained on No. 40 100.0 85.0

Passing No. 40, retained on No. 60 9.0 0.0

Passing No. 60 1.0 -

GRADATION NO. 3

Retained on No. 20 0.0 -

Passing No. 20, retained on No. 35 5.0 0.0

Passing No. 35, retained on No. 60 100.0 80.0

Passing No. 60, retained on No. 100 13.0 0.0

Passing No. 100 2.0 -

2.2.1.4 Surface Sealing Coat

Provide nonambering aliphatic or aromatic moisture-curing polyurethane surface sealer into which has been incorporated a flatting agent. Add flatting agent not more than 24 hours prior to actual application of the coating. Ensure cured coating with flatting agent yields 60-degree specular gloss of 10 to 20 when tested in accordance with ASTM D523.

SECTION 09 67 23.13 Page 10

PART 3 EXECUTION

3.1 PREPARATION

Prior to applying resinous flooring material, inspect substrate and immediately report any unsatisfactory conditions that exist and repair.

Verify that the concrete substrates are dry and the moisture-vapor emissions are within acceptable levels according to the manufacturer's written instructions.

Anhydrous Calcium Chloride Test: ASTM F1869. Proceed with application of resinous flooring only after substrates have a maximum moisture-vapor-emission rate of 4.5 lb of water/1000 sq ft of slab area in 24 hours.

Relative Humidity Test: Use in situ probes, ASTM F2170. Proceed with installation only after substrates have a maximum 75 percent relative humidity level measurement.

Alkalinity and Adhesion Testing: Verify that concrete substrates have a pH within an acceptable range. Perform tests recommended by the manufacturer. Proceed with the application only after the substrates pass testing.

3.1.1 Safety Precautions

Prior to application in confined spaces of toppings and coatings containing flammable or toxic properties, institute safety precautions recommended by the manufacturer of the product.

Erect "NO SMOKING" signs, and prohibit smoking or use of spark- or flame-producing devices within 15 meter 50 feet of any mixing or placing operation involving flammable materials.

Provide the personnel required to handle, mix, or apply toppings containing toxic or flammable properties with such items of personal protective equipment and apparel for eye, skin, and respiratory protection as are recommended by the manufacturer of the product. Ensure all personnel are trained in the appropriate use and wearing of personal protection equipment.

3.1.2 Protection of Adjacent Surfaces

In addition to the protection of adjacent surfaces during installation, provide areas used to store and mix materials with a protective covering under the materials. After application of the sealer coats, protect finished flooring during the remainder of the construction period. Upon completion of construction, remove the protection, clean flooring and, where necessary, repair, reseal, or both, at no additional cost to the Government.

3.1.3 Concrete Subfloor

3.1.3.1 Existing Concrete Floors

Clean existing concrete floors, with hard troweled or contaminated areas in conformance with ASTM D4259. Ensure the concrete is free of all paint, sealers, curing agents, oil, grease, moisture, dirt or any other contaminants. Remove any loose or corroded segments of existing concrete.

Patch with a grouting compound as recommended by the resinous flooring

SECTION 09 67 23.13 Page 11 manufacturer. Fill all cracks with an elastomeric jointing compound compatible with the resinous flooring system used.

3.1.4 Steel Subfloor

Clean surfaces of grease, rust, and mill scale by dry sand blasting in accordance with SSPC SP 6/NACE No.3. Prime all surfaces with a primer as recommended by the resinous flooring manufacturer, the same day or before there are any visible signs of oxidation, which ever is sooner. Using other means of surface preparation is optional, as approved by the Contracting Officer, provided the degree of cleanliness and the profile obtained by sand blasting is equivalent. Power brushing is not permitted.

3.1.5 Mixing Of Materials

Select the job mix proportions on the trial batch proportions used to prepare the floor topping samples as submitted and approved.

Use mechanical equipment for mixing of materials in accordance with the manufacturer's instructions.

Use rotating paddle-type masonry mortar mixers for preblending the three sizes and color pigment, if any, of the walnut shell aggregate and addition of the mixed epoxy resin binder. Ensure mixing times are as recommended by the materials supplier(s), provided mixing times result in homogeneous mixtures. Limit quantity of material mixed at one time to that which can be applied and finished within the working life of the mixtures. Verify that the temperature of materials at the time of mixing are between 65 and 85 degrees F.

3.2 APPLICATION

3.2.1 Areas of Application

Anchor plates set with the top surface at or above the finished epoxy floor level do not require coverage with this flooring material. Extend flooring under equipment, except when the equipment base is indicated to be flush against the structural floor. Cover and/or mask surfaces not to receive the epoxy floor topping, such as equipment or cabinets installed prior to surface-preparation efforts and adjacent to the flooring installation.

3.2.2 Application of Prime Coat and Troweling

Combine the epoxy binder components A and B in the proportions specified by the manufacturer to form a clear compatible system immediately on mixing. Cure combined components to a clear film possessing a glossy, non-greasy surface at relative humidity less than 80 percent.

Ensure that the prepared subfloor surface is dry and at a temperature of not less than 60 degrees F when application of the floor topping is initiated. Immediately before application of the prime/scratch coat on the prepared surface, remove dust or other loose particles by blowing with compressed air or vacuum cleaned. Use only an air compressor equipped with an efficient oil-water trap to prevent oil contamination or wetting of surface.

Apply a thin roller coat of the epoxy binder specified to the prepared subfloor as a prime coat. As an aid to placing, compacting, and finishing the floor topping, form a scratch coat by sprinkling a minimum quantity of

SECTION 09 67 23.13 Page 12 the walnut shell aggregate on the prime coat surface immediately following the prime coat application. Prior to application of the prime/scratch coat, fill cracks in the concrete per manufacturer's instructions, and make provisions to keep control or expansion joints open.

Place the floor topping prior to final gelling of the prime/scratch coat.

Immediately after the materials are mixed as specified, dump the mixture in the placement area and spread to prolong troweling life. Screed or rough trowel placed materials to the specified thickness and then compact by the use of a smooth roller prior to finish troweling to a nominal thickness of 3/16 inch plus or minus 1/16 inch. Ensure all finished surfaces are free of ridges, hollows (bird-baths), trowel marks, and smoothness varies no more than 1/8 inch when tested with an 8 foot straightedge. Make provisions to maintain the work areas in a relatively dust-free environment during curing of the topping.

3.2.3 Sealer Coat

After the floor topping has set firmly (approximately 6 to 16 hours depending on subfloor temperature) in a relatively dust-free environment, apply two thin coats of the sealer coat, by means of brush, roller, squeegee, or notched trowel to provide a pore-free, easy-to-clean surface. At the time of sealer application, ensure that the surface is dust-free. Depending on relative humidity, allow the applied sealer to cure to a tack-free condition in 2 to 4 hours. Do not apply second coat until after the initial coat has cured to a tack-free, hard film.

Maintain topping areas in a relatively dust-free environment during curing of the sealer coats.

3.3 FIELD QUALITY CONTROL

3.3.1 Repairing

Remove and replace damaged or unacceptable portions of completed work with new work to match adjacent surfaces at no additional cost to the Government.

3.4 ADJUSTING AND CLEANING

Clean surfaces of the new work, and adjacent surfaces soiled as a result of the work. Remove all equipment, surplus materials, and rubbish associated with the work from the site.

-- End of Section --

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