36C24218B0125-0004001.pdf

Renovate 6th Floor Mental Health Project 526-13-102

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SECTION 09 67 23

EPOXY FLOORING

PART I GENERAL

1.01 RELATED DOCUMENTS

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

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

1.02 SUMMARY

A. Definitions: Resinous flooring includes penetrating two-component epoxy primer, three-component mortar consisting of epoxy resin, curing agent and finely graded quartz silica aggregate, three-component, epoxy undercoat, brightly colored, quartz silica aggregate broadcast and a high performance, two-component, clear epoxy sealer.

1.03 SUBMITTALS

A. Product Data: Submit manufacturer's technical data, installation instructions, and general recommendations for each resinous flooring material required. Include certification-indicating compliance of materials with requirements.

B. Samples: Submit, for verification purposes, 4-inch square samples of each type of epoxy flooring required, applied to a rigid backing, in color and finish indicated.

1. For initial selection of colors and finishes, submit manufacturer's color charts showing full range of colors and finishes available.

1.04 QUALITY ASSURANCE

A. Single Source Responsibility: Obtain primary resinous flooring materials including primers, resins, hardening agents, finish or sealing coats from a single manufacturer with not less than ten years of successful experience in manufacturing and installing principal materials described in this section. Contractor shall have completed at least five projects of similar size and complexity; Stonhard or approved equal. Provide secondary materials only of type and from source recommended by manufacturer of primary materials.

B. Pre-Installation Conference

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1. General contractor shall arrange a meeting not less than thirty days prior to starting work.

2. Attendance

a. General Contractor

b. Architect/Owner's Representative

c. Manufacturer/Installer's Representative

C. ISO 9001: All materials, including primers, resins, curing agents, finish coats, aggregates and sealants are manufactured and tested under an ISO 9001 registered quality system.

1.05 DELIVERY, STORAGE AND HANDLING

A. Material shall be delivered to job site and checked by flooring contractor for completeness and shipping damage prior to job start.

B. All materials used shall be factory pre-weighed and pre-packaged in single, easy to manage batches to eliminate on site mixing errors. No on site weighing or volumetric measurements allowed.

C. Material shall be stored in a dry, enclosed area protected from exposure to moisture. Temperature of storage area shall be maintained between 60 and 85oF/16 and 30oC.

1.06 PROJECT CONDITIONS

A. Concrete substrate shall be properly cured for a minimum of 30 days. A vapor barrier must be present for concrete subfloors on or below grade. Otherwise, an osmotic pressure resistant grout must be installed prior to the resinous flooring.

B. Utilities, including electric, water, heat (air temperature between 60 and 85oF/16 and 30oC) and finished lighting to be supplied by General Contractor.

C. Job area to be free of other trades during, and for a period of 24 hours, after floor installation.

D. Protection of finished floor from damage by subsequent trades shall be the responsibility of the General Contractor.

1.07 WARRANTY

A. Manufacturer shall furnish a single, written warranty covering both material and workmanship for a period of one (1) full year from date of installation.

PART II PRODUCTS

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2.01 COLORS

A. Colors: As selected by Architect from manufacturer's standard colors.

2.02 EPOXY FLOORING

A. Basis of Design: Stonshield HRI as manufactured by Stonhard, Inc., Maple Shade, NJ, (800) 257-7953 is a nominal 3/16"/5mm thick system comprised of a penetrating two-component epoxy primer, three-component mortar consisting of epoxy resin, curing agent and finely graded silica aggregate, three-component, epoxy undercoat, brightly colored, quartz silica aggregate broadcast and two coats of a high performance, two-component, clear epoxy sealer.

1. Physical Properties: Provide flooring system in which physical properties of topping including aggregate, when tested in accordance with standards or procedures referenced below, are as follows:

Compressive Strength ............................. 10,000 psi

(ASTM C-579)

Tensile Strength .................................. 2,000 psi

(ASTM C-307)

Flexural Strength ................................. 4,300 psi

(ASTM C-580)

Hardness .............................................. 85-90

(ASTM D-2240/Shore D Durometer)

Impact Resistance ............................. >160 in. lbs.

(ASTM D-4226)

Abrasion Resistance ................ 0.06 gm max. Weight loss

(ASTM D-4060, Taber

Abrader CS-17 wheel)

Coefficient of Friction ............................. 0.7-0.8

(ASTM D-2047)

Flexural Modulus of Elasticity .................2.0 x 106 psi

(ASTM C-580)

Flammability ............................. Self Extinguishing

(ASTM D-635) Extent of burning 0.25 inches max.

Thermal Coefficient of

Linear Expansion .......................... 1.8 x 10-5 in/inC

(ASTM C-531)

Water Absorption ....................................... 0.1%

(ASTM C-413)

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Heat Resistance Limitation ........................ 140oF/60oC

(For continuous exposure)

............................. 200oF/93oC

(For intermittent spills)

Cure Rate allow .................... 8 hours for foot traffic

(At 77oF/25oC) 18 hours for light traffic

24 hours for normal operations

2.03 JOINT SEALANT MATERIALS

A. Type produced by manufacturer of resinous flooring system for type of service and joint condition indicated.

PART III EXECUTION

3.01 PREPARATION

A. Substrate: Concrete preparation shall be by mechanical means and include use of a scabbler, scarifier or shot blast machine for removal of bond inhibiting materials such as curing compounds or laitance.

3.02 APPLICATION

A. General: Apply each component of resinous flooring system in compliance with manufacturer's 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. 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.

C. Troweled Mortar: Mix mortar material according to manufacturer's recommended procedures. Uniformly spread mortar over substrate using manufacturers specially designed screed box adjusted to manufacturer's recommended height. Hand trowel apply mixed material over freshly primed substrate using steel finishing trowels or power trowel material. Form cove base with one-inch radius at vertical surfaces terminating at first CMU joint line.

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D. Undercoat: 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.

E. Broadcast: Immediately broadcast quartz silica aggregate into the undercoat using manufacturers specially designed spraycaster.

Strict adherence to manufacturer's installation procedures and coverage rates is imperative.

F. 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 and coverage rates.

G. Sealer: Mix and apply second coat of sealer with a ridged rubber squeegee and back roll with a saturated roller to achieve medium texture.

3.03 FIELD QUALITY CONTROL

A. The right is reserved to invoke the following material testing procedure at any time, and any number of times during period of flooring application.

B. The Owner will engage service of an independent testing laboratory to sample materials being used on the job site. Samples of material will be taken, identified and sealed, and certified in presence of Contractor.

C. Testing laboratory will perform tests for any of characteristics specified, using applicable testing procedures referenced herein, or if none referenced, in manufacturer's product data.

D. If test results show materials being used do not comply with specified requirements, Contractor may be directed by Owner to stop work; remove non-complying materials; pay for testing;

reapply flooring materials to properly prepared surfaces which had previously been coated with unacceptable materials.

3.04 CURING, PROTECTION AND CLEANING

A. Cure resinous flooring materials in compliance with manufacturer's directions, taking care to prevent contamination during stages of application and prior to completion of curing process. Close area of application for a minimum of 24 hours.

B. Protect resinous flooring materials from damage and wear during construction operation. Where temporary covering is required for this purpose, comply with manufacturer's recommendations for protective materials and method of application. General

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Contractor is responsible for protection and cleaning of surfaces after final coats.

C. Cleaning: Remove temporary covering and clean resinous flooring just prior to final inspection. Use cleaning materials and procedures recommended by resinous flooring manufacturer.

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