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- SECTION 09442
-
- EPOXY THIN-SET TERRAZZO FLOORING SYSTEM
- NOTE ** This section is based on a system formulated by
- General Polymers Corporation. For additional
- information and technical assistance, contact
- General Polymers at the following numbers:
- NOTE ** Cincinnati, Ohio: Tel: (513) 761-0011 or (800)
- 543-7694
- NOTE ** Sylmar, California: Tel: (818) 365-9261 or
- (800) 624-5041
- NOTE ** Tampa, Florida: Tel: (813) 968-9630
- NOTE ** Canada: Tel: (800) 543-7694
- NOTE **
- NOTE ** SECTION 09442 - EPOXY THIN-SET TERRAZZO FLOORING
- SYSTEM, Copyright 1998, The Architect's Catalog,
- Inc.
-
- PART 1 GENERAL
-
- 1.1 SECTION INCLUDES
-
- A. Floor preparation and installation of 1/4-3/8 inch epoxy
- thin-set terrazzo.
-
- 1.2 RELATED SECTIONS
- NOTE ** Delete any sections below not relevant to this
- project; add others as required.
-
- A. Section [______-____________]: Building structural
- flooring surfaces.
-
- B. Section 09410 - Portland Cement Terrazzo.
-
- 1.3 REFERENCES
- NOTE ** Delete references from the list below that are not
- actually required by the text of the edited
- section.
-
- A. ASTM D 638 - Standard Test Method for Tensile Properties
- of Plastics.
-
- B. ASTM D 695 - Standard Test Method for Compressive
- Properties of Rigid Plastics.
-
- C. ASTM D 790 - Standard Test Methods for Flexural
- Properties of Unreinforced and Reinforced Plastics and
- Electrical Insulating Materials.
-
- D. ASTM D 2240 - Standard Test Method for Rubber Property --
- Durometer Hardness.
-
- 1.4 SYSTEM DESCRIPTION
-
- A. General Polymers Corporation System No. 1100 Epoxy Thin-
- Set Terrazzo, 1/4 inch - 3/8 inch in thickness, comprised
- of the following components:
- 1. 3578 Universal Penetrating Epoxy Primer.
- 2. 3552 or 3553 EPO-FLEX Flexible Epoxy Membrane.
- 3. 3520 Epoxy Terrazzo Matrix binder resin.
- 4. 5270 Epoxy Filler.
- 5. Marble chips, sized for finished thickness.
- 6. Zinc, brass, or plastic divider strips.
- 7. 3520G Epoxy Terrazzo Grout, with 5290 Grout Filler or
- 5270 Epoxy Filler as grout coat.
- 8. 4501 Acrylic Sealer or 3744 NOVO-COTE Chemical
- Resistant Epoxy as seal coat.
-
- B. Completed system shall comply with the following minimum
- performance requirements:
- 1. Hardness, Shore D, per ASTM D 2240: 75.
- 2. Compressive Strength, per ASTM D 695: 11,000 psi.
- 3. Tensile Strength, per ASTM D 638: 6,000 psi.
- 4. Flexural Strength, per ASTM D 790: 10,000 psi.
-
- 1.5 SUBMITTALS
-
- A. Submit under provisions of Section 01300.
-
- B. Product Data: Provide manufacturer's specifications on
- cured system and individual components, including
- physical and performance properties, test results, and
- Material Safety Data Sheets.
-
- C. Color Chart: Provide manufacturer's standard color chart
- for color selection.
-
- D. Samples: Submit cured samples not less than 6 inches by
- 6 inches for verification of color selection and finish
- texture. Include 6 inch length of divider strip.
-
- E. Shop Drawings: Indicate layout and spacing of divider
- strips and control joints. Provide details of terrazzo
- termination and transition to other flooring.
-
- F. Manufacturer's Installation Instructions: Include
- special procedures such as installation of control and
- expansion joints, perimeter conditions requiring special
- attention, requirements for preparation of substrate, and
- final finishing and protection.
-
- G. Manufacturer's Certificate: Certify that all components
- of system comply with specified requirements.
- 1. Include calculations and packing slip for this
- project, signed by a company officer, verifying that
- the quantity of material being furnished for the
- project will achieve the required coverage and
- thickness.
-
- 1.6 QUALITY ASSURANCE
-
- A. Manufacturer's Qualifications: Obtain all components for
- flooring system from a single company specializing in
- manufacturing the products specified in this section and
- with not fewer than ____ years of documented experience.
-
- B. Installer's Qualifications: A company certified in
- writing by the flooring system manufacturer, having
- skilled mechanics with not fewer than three years of
- satisfactory experience in installation of flooring
- systems of the type specified in this section.
- 1. Furnish a list of similar flooring projects installed
- within the previous ___ years. Include project name,
- area of terrazzo flooring actually installed, and
- contact information.
- 2. Furnish resumes of key project personnel, detailing
- relevant experience.
-
- 1.7 DELIVERY, STORAGE, AND HANDLING
-
- A. Deliver materials in manufacturer's undamaged, unopened
- containers clearly marked with the following information:
- 1. Product name and number.
- 2. Manufacturer name and contact information.
- 3. Component designation.
- 4. Product mix ratio.
- 5. Health and safety information.
- 6. CHEMTREC emergency response information.
-
- B. Promptly inspect delivered material to verify quantities,
- conformance to requirements, and undamaged condition.
-
- C. Handle materials using methods that will prevent damage.
-
- D. Store materials in accordance with manufacturer's
- instructions, keeping seals and labels intact and
- legible. Maintain temperatures within allowable range.
- Do not use materials beyond manufacturer's maximum
- recommended shelf life.
-
- 1.8 ENVIRONMENTAL REQUIREMENTS
-
- A. Do not begin installation until slab temperatures have
- been brought to a minimum temperature of 50 degrees F.
- Maintain that temperature during installation and for not
- less than 72 hours after installation has been completed.
-
- B. Do not begin installation until building's permanent
- lighting system has been completed and is operational.
- Maintain lighting at a minimum uniform level of 50
- footcandles in areas where the epoxy terrazzo flooring
- system is being installed.
-
- C. Provide adequate ventilation during installation to
- prevent accumulation of toxic volatile compounds.
-
- 1.9 WARRANTY
-
- A. Provide warranty signed by manufacturer and installer,
- agreeing to repair or replace defective materials within
- a period of one year after Date of Substantial
- Completion. Defective materials shall include epoxy
- terrazzo that has lost bond to substrate and areas that
- have worn through to substrate with normal use.
-
-
- PART 2 PRODUCTS
-
- 2.1 MANUFACTURERS
-
- A. Products of this section are based on materials and
- systems produced by General Polymers Corporation, located
- at 145 Caldwell Drive, Cincinnati, Ohio 45216. ASD. Tel:
- (800) 543-7694 or (513) 761-0011.
- NOTE ** Select one of the two following statements about
- substitutions.
- 1. Substitutions will not be acceptable.
- 2. Substitutions will be considered only in accordance
- with submittal provisions specified in Section 01600.
-
- 2.2 PRODUCTS
-
- A. Primer: 3578 Universal Penetrating Epoxy Primer.
-
- B. Flexible Epoxy Membrane: 3552 EPO-FLEX (gray).
- NOTE ** Delete paragraph above or below.
-
- C. Flexible Epoxy Membrane: 3553 EPO-FLEX (clear).
-
- D. Binder Resin: 3520 Epoxy Terrazzo Matrix.
-
- E. Filler: 5270 Epoxy Filler.
- NOTE ** #2 Marble chips are too large for a total system
- thickness of 1/4 inch and should be specified only
- for a 3/8 inch thick floor system.
-
- F. Aggregate: #0, #1, and #2 marble chips.
-
- G. Grout Coat: 3520G Epoxy Terrazzo Grout, with one of the
- following:
- 1. 5290 Grout Filler, mixed with grout.
- 2. 5270 Epoxy Filler, broadcast into wet grout.
-
- H. Seal Coat: One of the following:
- 1. 4501 Acrylic Sealer.
- 2. 3744 NOVO-COTE Chemical Resistant Epoxy.
-
- I. Divider Strips: Zinc coated steel bottom strip with
- anchoring features, overall depth to conform to finished
- thickness of terrazzo, and exposed portion as follows:
- 1. Material: Zinc.
- 2. Material: Brass.
- 3. Material: Plastic, color as selected from
- manufacturer's standards.
- 4. Width: 1/8 inch nominal.
- 5. Width: 3/16 inch nominal.
- 6. Width: as indicated on drawings.
- 7. Width: ____________.
-
- 2.3 COLORS
-
- A. Match approved samples.
-
-
- PART 3 EXECUTION
-
- 3.1 EXAMINATION
-
- A. Verify that substrates are in proper condition to receive
- thin-set epoxy terrazzo.
-
- B. Test concrete substrates to verify that moisture content
- does not exceed levels recommended by manufacturer of
- epoxy terrazzo materials.
-
- C. Verify that substrate is sloped to drains and that drains
- are properly installed at correct elevation for finished
- epoxy terrazzo thickness.
-
- 3.2 PREPARATION
-
- A. Prepare concrete substrate to receive thin-set epoxy
- terrazzo by removing laitance and opening surface.
-
- B. Achieve surface profile of concrete similar to medium
- grit sandpaper, free of bond-inhibiting contaminants, by
- means of light brush grit blasting.
-
- C. Repair non-moving cracks in substrate with semi-rigid
- epoxy, complying with General Polymers Concrete 102.
-
- D. Prepare edge conditions in accordance with approved shop
- drawings.
-
- E. Apply primer in accordance with manufacturer's
- instructions.
-
- 3.3 INSTALLATION
-
- A. Apply each component of the epoxy thin-set terrazzo
- flooring system in strict compliance with manufacturer's
- written installation instructions.
-
- B. Adhere strictly to manufacturer's published mixing
- methods and comply with limitations on recoat windows,
- cure times, and environmental conditions.
-
- C. Install divider and control joint strips in locations
- indicated and at proper elevation.
- NOTE ** Delete one of the following two paragraphs.
-
- D. Place terrazzo mix over prepared substrate to achieve
- minimum finished thickness of 1/4 inch.
-
- E. Place terrazzo mix over prepared substrate to achieve
- nominal finished thickness of 3/8 inch.
-
- F. Cure thin-set epoxy in compliance with manufacturer's
- instructions, taking care to prevent contamination.
-
- 3.4 FINISHING
-
- A. Produce final surface to match approved samples.
-
- B. Grind terrazzo surfaces with power disc machine,
- sequencing from coarse to fine grit abrasive, using a wet
- method.
-
- C. Apply grout mix matching mortar to fill honeycomb exposed
- during grinding process. Remove patch mix by grinding
- with fine grit abrasive.
- NOTE ** Delete the following article if field testing of
- finished terrazzo thickness is not desired. Be
- aware that patched core areas cannot be made to
- match surrounding areas precisely, so cores should
- not be taken in areas where appearance is critical.
-
- 3.5 FIELD QUALITY CONTROL
-
- A. At Owner's discretion and upon direction by Architect,
- take 1 inch diameter cores at locations indicated to
- verify system thickness, at rate not to exceed 1 per
- 1,000 square feet.
-
- B. Remove epoxy terrazzo in areas where cores indicate less
- than specified thickness, and replace with new material
- at Contractor's expense.
-
- C. Patch cored areas where cores indicate specified
- thickness has been achieved, matching appearance of
- surrounding area.
-
- 3.6 ADJUSTING AND CLEANING
-
- A. Scrub and clean epoxy terrazzo surfaces with cleaner in
- accordance with manufacturer's instructions.
-
- B. Immediately after drying, apply sealer in accordance with
- manufacturer's instructions.
-
- 3.7 PROTECTION
-
- A. Do not permit traffic over finished terrazzo surfaces.
- NOTE ** Delete paragraph above or below.
-
- B. Protect epoxy terrazzo surfaces from damage and wear
- during remaining construction period, using temporary
- coverings as recommended by the manufacturer.
-
-
- END OF SECTION
-