SECTION 03 54 13 - Gypsum Cement Underlayment

FLOOR UNDERLAYMENT

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** NOTE TO SPECIFIER ** ACG Materials, floor underlayments.
This section is based on the products of ACG Materials, which is located at:
1550 Double Dr.
Norman, OK 73069
Toll Free Tel: 800-624-5963
Tel: 405-366-9500
Fax: 405-366-9515
Email:
Web:
Click Herefor additional information.
Allied Custom Gypsum manufacturers floor underlayments in a state of the art facility, and ships directly to a network of trained contractors. Our company controls all aspects of production, including mining, manufacturing, formulation and quality control to deliver the best possible service and products to our customers.
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1 GENERAL

1.1 SECTION INCLUDES

1.1.1 Gypsum Floor Underlayment. (AccuCrete) (AccuCrete Green)

1.1.2 Gypsum Pourable Thermal Underlayment. (AccuRadiant) (AccuRadiant Green)

1.1.3 Hydraulic Self-Leveling Underlayment. (AccuLevel G40) (AccuLevel G40 Green)

1.1.4 Sound Attenuating Underlayment. (AccuQuiet C40) (AccuQuiet D18) (AccuQuiet P80) (AccuQuiet RSM48)

1.1.5 Integrated Floor System - Sound, Fire and Cementitious Wear Surface Topping. (FusionTec)

1.1.6 Gypsum Underlayment for Corrugated Steel Deck Construction. (AccuLevel SD30)

1.2 RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

1.2.1 Section 03 30 00 - Cast-in-Place Concrete.

1.2.2 Section 05 30 00 - Metal Decking.

1.2.3 Section 07 95 13 - Expansion Joint Cover Assemblies.

1.2.4 Section 06 10 00 - Rough Carpentry.

1.2.5 Section 09 30 00 - Tiling.

1.2.6 Section 09 60 00 - Flooring.

1.3 REFERENCES

** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.

1.3.1 ASTM International (ASTM):

1.3.1.1 ASTM C 472 - Standard Test Methods for Physical Testing of Gypsum, Gypsum Plasters and Gypsum Concrete.

1.3.1.2 ASTM E 84 - Standard Test Method for Fire Tests of Building construction and Materials.

1.3.1.3 ASTM E 119 - Standard test method for Fire Tests of Building construction and Materials.

1.3.1.4 ASTM F 1869 - Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.

1.3.1.5 ASTM F 2419 - Standard Practice for Installation of Thick Poured Gypsum Concrete Underlayments and Preparation of the Surface to Receive Resilient Flooring.

1.3.1.6 ASTM F 2678 - Standard Practice for Preparing Panel Underlayments, Thick Poured Gypsum Concrete Underlayments, Thick Poured Lightweight Cellular Concrete Underlayments, and Concrete Subfloors with Underlayment Patching Compounds to Receive Resilient Flooring.

1.4 SUBMITTALS

1.4.1 Submit under provisions of Section 01 30 00 - Administrative Requirements.

1.4.2 Product Data: Manufacturer's data sheets on each product to be used, including:

1.4.2.1 Storage and handling requirements and recommendations.

1.4.2.2 Surface preparation instructions and recommendations.

1.4.2.3 Details of terminations and interfaces with other materials.

1.4.2.4 Installation requirements and methods.

1.5 QUALITY ASSURANCE

1.5.1 Manufacturer Qualifications: Minimum 5 years experience manufacturing similar products.

1.5.2 Installer Qualifications: Installation shall be performed by a licensed AccuCrete Applicator.

** NOTE TO SPECIFIER ** Consider mock-up for FusionTec product. Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project. Delete if not required.

1.5.3 Mock-Up: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.

1.5.3.1 The mock-up shall demonstrate the full range of appearance and workmanship to be expected in completed work.

1.5.3.2 Locate mock-up on site in location as directed by Architect. Clean the sample panel installation using the same materials and tools as planned for the final construction.

1.5.3.3 Obtain Architect's acceptance of mock-up before start of work.

1.5.3.4 Do not proceed with remaining work until work, workmanship are approved by Architect.

1.5.3.5 Modify mock-up area as required to produce acceptable work.

** NOTE TO SPECIFIER ** Delete one of the following two lines..

1.5.3.6 Mock-up may be incorporated into finished work.

1.5.3.7 Remove mock-up at the completion of the work.

1.6 DELIVERY, STORAGE, AND HANDLING

1.6.1 Materials shall be delivered to the location in unopened factory containers. Upon arrival, materials shall be inspected for damage and manufacturer informed of any discrepancies. Deficient materials shall not be used and shall be removed from the project.

1.6.2 Materials shall be stored in an enclosed, protected location and safeguarded from damage.

1.7 PROJECT CONDITIONS

1.7.1 The building shall be enclosed and maintained at a temperature above 50 degrees F (10 degrees C) with adequate ventilation before, during and after the installation of the flooring underlayment. Mechanical ventilation should be used in areas with poor ventilation to expedite final curing.

2 PRODUCTS

2.1 MANUFACTURERS

2.1.1 Acceptable Manufacturer: ACG Materials, which is located at: 1550 Double Dr.; Norman, OK 73069; Toll Free Tel: 800-624-5963; Tel: 405-366-9500; Fax: 405-366-9515; Email:; Web:

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

2.1.2 Substitutions: Not permitted.

2.1.3 Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.

** NOTE TO SPECIFIER ** AccuCrete Brand Floor Underlayment Systems provide "Strength by Design" for each application, depending upon your project needs. AccuCrete is the most versatile Gypsum Concrete Flooring Solution. Applications range from office buildings, retail facilities, sports complexes and more. It is also ideal for use over wood subfloors in mutli-family, light commercial, and single family construction. Fast setting, quick application; for light trade traffic within hours. Delete system and options not required.

2.2 GYPSUM FLOOR UNDERLAYMENT

2.2.1 Gypsum Floor Underlayment:

** NOTE TO SPECIFIER ** Delete one of the two following paragraphs.

2.2.1.1 Product: AccuCrete floor underlayment as manufactured by Allied Custom Gypsum.

2.2.1.2 Product: AccuCrete Green floor underlayment, with up to 80 percent recycled content, as manufactured by Allied Custom Gypsum.

2.2.1.3 Acceptable Substrates.

2.2.1.3.1 Wood: Pourable over wood substrate, 3/4 inch to 3 inches (19 mm to 76 mm thick).

2.2.1.3.2 Concrete: Can be poured from 3/8 inch (9.5 mm) to 3 inches (76 mm) thick over concrete substrates.

2.2.1.3.3 Feather edges shall be provided where scheduled or required with patching compound.

2.2.1.4 Mix: In accordance with manufacturer specified custom formulation, absolute maximum of 2.1 cubic feet (0.06 cubic meters) of sand per 80 lb (36 kg) bag.

2.2.1.5 Typical Densities: 110 to 125 pounds per cubic foot (1762 to 2002 kg/cu. m).

2.2.1.6 Design Strengths: Compressive Strength of gypsum cement tested as per modified ASTM C 472, range from 1,400 to 3,500 PSI (9653 to 24132 kPa).

** NOTE TO SPECIFIER ** Fill in blank below or delete line as applicable. Delete options for compressive strength not required.

2.2.1.6.1 Minimum Compressive Strength: ______PSI (___ kPa).

2.2.1.6.2 Minimum Compressive Strength: As indicated on the Drawings

2.2.1.6.3 Minimum Compressive Strength: As selected by Architect.

2.2.1.7 Materials:

2.2.1.7.1 Gypsum Cement: As manufactured by AccuCrete.

2.2.1.7.2 Primer: Approved AccuCrete Primer.

2.2.1.7.3 Sand: Clean, washed sand as per specifications in AccuCrete Application Manual.

2.2.1.7.4 Water: Potable water, free of contaminants.

2.2.1.7.5 Sealer: Approved AccuCrete surface sealer over fully cured gypsum underlayment.

** NOTE TO SPECIFIER ** AccuRadiant can be poured over hot water tubes, electric heating cables or mats. Lightweight and thin thermal mass provides excellent response time, making your home more comfortable. Seals perimeter walls, reducing baseboard drafts. Accepts virtually any floor covering. Delete if not required.

2.3 GYPSUM POURABLE THERMAL UNDERLAYMENT

2.3.1 Gypsum Pourable Thermal Underlayment:

** NOTE TO SPECIFIER ** Delete one of the two following paragraphs.

2.3.1.1 Product: AccuRadiant pourable thermal underlayment as manufactured by Allied Custom Gypsum.

2.3.1.2 Product: AccuRadiant Green pourable thermal underlayment, with up to 55 percent recycled content, as manufactured by Allied Custom Gypsum.

2.3.1.3 Description: A pourable thermal underlayment that delivers even heat distribution and a smooth finish compatible with ceramic, marble and tile custom floors.

2.3.1.4 Mix:

2.3.1.4.1 In accordance with manufacturer specified custom formulation, between 3.0 to 6.0 gallons (11.4 l to 22.8 L) of water to one 80 lb (36 kg) bag of AccuRadiant Brand Underlayment.

2.3.1.4.2 In accordance with manufacturer specified custom formulation, requirements for compressive strength, add maximum of 1.8 cubic feet (0.05 cu. m) of sand, for each 80 lb (36 kg) bag of AccuRadiant Floor Underlayment.

2.3.1.5 Density: Typical 115 to 120 pounds/cubic foot (1842 to 1922 kg/cu. m).

2.3.1.6 Design Strengths: Compressive strength tested as per modified ASTM C 472, range from 2200 to 3500 PSI (15168 to 24132 kPa).

** ** NOTE TO SPECIFIER ** Fill in blank below or delete line as applicable. Delete options for compressive strength not required.

2.3.1.6.1 Minimum Compressive Strength: ______PSI (___ kPa).

2.3.1.6.2 Minimum Compressive Strength: As indicated on the Drawings.

2.3.1.6.3 Minimum Compressive Strength: As selected by Architect.

2.3.1.7 Materials:

2.3.1.7.1 Gypsum Concrete: As manufactured by AccuCrete.

2.3.1.7.2 Primer: Approved AccuCrete primer to promote a bond to the substrate at the manufacturers recommended dilution and application rate.

** ** NOTE TO SPECIFIER ** Delete if not required.

2.3.1.7.3 Use of an approved AccuCrete Acrylic Primer/Sealer over concrete substrates required.

2.3.1.7.4 Sand: Clean, washed sand as per specifications in AccuCrete Application Manual.

2.3.1.7.5 Water: Potable water, free of contaminants.

2.3.1.7.6 Sealer: Use approved AccuCrete surface sealer over fully cured gypsum underlayment.

** NOTE TO SPECIFIER ** AccuLevel delivers a smooth, dense surface that is suitable for an immense array of floor covering options. Special formulation technology reduces the porosity of the surface of the cast underlayment to prevent it from rapidly absorbing moisture from adhesives, thereby eliminating the need of surface sealers in most cases. A premium and technologically advanced line of leveling cements that offer high strength, excellent flow properties, superior surface hardness, and other enhanced properties useful in commercial construction settings. Contact AccuLevel technical representative for specific information regarding ideal mix designs and specialized mixing and pumping equipment. Delete if not required.

2.4 HYDRAULIC SELF LEVELING UNDERLAYMENT

** NOTE TO SPECIFIER ** Delete if not required.

2.4.1 Hydraulic Self Leveling Underlayment:

** NOTE TO SPECIFIER ** Delete one of the two following paragraphs.

2.4.1.1 Product: AccuLevel G40 self-leveling underlayment as manufactured by Allied Custom Gypsum.

2.4.1.2 Product: AccuLevel G40 Green self-leveling underlayment, with up to 45 percent recycled content, as manufactured by Allied Custom Gypsum.

2.4.1.3 Description: Premium polymer-modified self-leveling underlayment.

2.4.1.4 Mix: Aggregate, sand blended on site.

2.4.1.4.1 In accordance with manufacturer specified custom formulation, add 3.0 to 4.0 gallons (11.4 to 15 L) of water and 0.80 to 1.40 cubic feet (.08 to .11 cu. m) sand per 80 lb (36 kg) bag of AccuLevel G40.

2.4.1.4.2 Mix to a smooth, lump-free consistency. Use the least quantity of water within the manufacturer specified range for custom formulation to achieve desired slump.

2.4.1.5 Materials:

2.4.1.5.1 Hydraulic Cement: AccuLevel G40.

2.4.1.5.2 Primer: Manufacturer approved primer over concrete substrates.

2.4.1.5.3 Water: Potable water, free of contaminants.

2.4.1.5.4 Sand: Washed mason or concrete sands that meet the minimum AccuCrete/AccuLevel gradation criteria.

** NOTE TO SPECIFIER ** Refer to AccuLevel G40 product data sheet for specific details and Approved Sealer documentation. Delete if not required.

2.4.1.5.5 Sealer: Approved AccuCrete Sealer over fully cured AccuLevel G40.

** NOTE TO SPECIFIER ** Typical applications from 1/8 inch to 1 inch (3 mm to 25 mm) thickness. Large areas of less than 1/8 inch (3 mm) thickness may be best suited for a trowelable patching compound. The high compressive strength is ideal for most residential and commercial renovation projects. AccuLevel® G50 is suitable for use with tile, stone, or floating and glue-down floor covering systems. Delete if not required.

2.4.2 Hydraulic Self Leveling Underlayment:

2.4.2.1 Product: AccuLevel G50 self-leveling underlayment as manufactured by Allied Custom Gypsum.

2.4.2.2 Description: Lightweight, free flowing, pumpable underlayment for use in renovation as a low-density self-leveling underlayment. Typical applications from 1/8 inch to 1 inch (3 mm to 25 mm) with "feather" edge capability.

2.4.2.3 Mix: Aggregate/sand free, blended slurry of cement containing polymer modified Portland cement and high strength gypsum cement.

2.4.2.3.1 Dry Density: 90 to 100 lb/cf (1330 to 1500 kg/cu. m).

2.4.2.3.2 Compressive Strength (at 28 days): 4,000 psi (27560 kPa).

2.4.2.3.3 Add powder product to water at a mixing ratio of 3.4 to 3.75 gallons (12.9 to 14.2 L) of water per 80 lb (36 kg) bag.

2.4.2.3.4 Mix to a smooth, lump-free consistency. Use the least quantity of water within the manufacturer specified range for custom formulation to achieve desired slump.

2.4.2.4 Materials:

2.4.2.4.1 Hydraulic Cement: AccuLevel G50.

2.4.2.4.2 Primer: Manufacturer approved primer over concrete substrates.

2.4.2.4.3 Water: Potable water, free of contaminants.

** NOTE TO SPECIFIER ** Refer to AccuLevel G50 product data sheet for specific details and Approved Sealer documentation. Delete if not required.

2.4.2.4.4 Sealer: Approved AccuCrete Sealer over fully cured AccuLevel G50.

** NOTE TO SPECIFIER ** Permanent sound control: AccuQuiet Sound Control Systems become an imbedded component of the floor ceiling assembly, even after floor coverings are replaced. Cost effective improvement of IIC and STC ratings in floor-ceiling assemblies. Full breadth of floor covering options are available, including tile, stone, marble, ceramic tile, and glue-down or floating hardwood without sacrificing sound control! An integral part of an overall noise reduction strategy. Delete if not required.

2.5 SOUND ATTENUATING UNDERLAYMENT

2.5.1 Sound Attenuating Underlayment: AccuQuiet Sound Mat Underlayment as manufactured by Allied Custom Gypsum.

2.5.1.1 Description:

2.5.1.1.1 Sound control mat underlayment system with perimeter tape designed for use with AccuCrete Pourable Underlayments.

2.5.1.1.2 Polypropylene mono-filament mesh, bonded to lightweight, water-tight technical membrane to prevent leaks of slurry and water through the sound mat.

2.5.1.1.3 Connections: Self sealing overlap flap.

** NOTE TO SPECIFIER ** Delete options for system not required.

2.5.1.2 Model: P80 AccuQuiet Sound Mat Underlayment.

2.5.1.2.1 Polypropylene Mesh: Molded to form U-shaped configuration.

2.5.1.2.2 Mesh Thickness: 9.5 mm (nominal 3/8 inch).

2.5.1.2.3 Minimum AccuCrete Thickness: 1 inch (25 mm).

2.5.1.3 Model: C40 AccuQuiet Sound Mat Underlayment.

2.5.1.3.1 Polypropylene Mesh: Molded to form cuspated configuration.

2.5.1.3.2 Mesh Thickness: 9.5 mm (nominal 3/8 inch).

2.5.1.3.3 Minimum AccuCrete Thickness: 1-1/2 inches (39 mm).

2.5.1.4 Model: D18 AccuQuiet Sound Mat Underlayment.

2.5.1.4.1 Polypropylene Mesh: Molded to form cuspated configuration.

2.5.1.4.2 Mesh Thickness: 4.8 mm (nominal 3/16 inch).

2.5.1.4.3 Minimum AccuCrete Thickness: 3/4 inch (19 mm).

2.5.1.5 Model: RSM48 AccuQuiet Sound Mat Underlayment

2.5.1.5.1 82 percent consumer recycled content.

2.5.1.5.2 Mat Thickness: 3/16 inch (4.8 mm).

2.5.1.5.3 Minimum AccuCrete Thickness: 1 inch (25 mm).

2.5.1.6 Materials:

2.5.1.6.1 Sound Deadening Mat: Constructed of a polypropylene monofilament mesh, bonded to a water-tight fabric backing, with low deflection properties, and approved by gypsum cement manufacturer.

2.5.1.6.2 Perimeter Isolations Tape: 1/8 inch (3 mm) closed cell foam strips to isolate areas with acoustical treatment from adjacent walls and non-treated areas.

2.5.1.6.3 Gypsum Cement: AccuCrete Brand Floor Underlayment, minimum 2,000 psi compressive strength.

** NOTE TO SPECIFIER ** Delete option for primer if not required.

2.5.1.6.4 Primer: Approved AccuCrete primer in either powder of liquid form over wood subfloors.

2.5.1.6.5 Sand: Clean, washed sand as per specifications in AccuCrete Application Manual.

2.5.1.6.6 Water: Potable water, free of contaminants.

2.5.1.6.7 Sealer: Use an approved AccuCrete Surface Sealer in areas that receive glued-down floor coverings.

** NOTE TO SPECIFIER ** Now concrete floors in wood-frame construction are possible with FusionTec Integrated Floor Systems. FusionTec combines the fire-rated and sound deadening technologies of AccuCrete Gypsum/AccuLevel Hydraulic Underlayment and AccuQuiet Sound Mat with the self-leveling topping, UltraPlan M20 Plus. Applications: Leveling of old/new concrete with cement wear surface, pourable thermal underlayment for radiant heat floor systems with cement wear, surface, acoustical treatment of subfloors with cement wear surface, fire-rated underlayments with cement wear surface, acoustical treatment of fire-rated floor-ceiling assembly with cement wear surface. Delete if not required.

2.6 GYPSUM INTEGRATED FLOOR/CEILING SYSTEM

2.6.1 Gypsum Integrated Floor/Ceiling System: FusionTEC Integrated Floor/Ceiling Assembly as manufactured by Allied Custom Gypsum.

2.6.1.1 Construction shall comply with UL assembly indicated on the drawings.

2.6.1.2 Integrated Floor Systems is designed for residential and commercial use, and is approved for light rubber wheeled and pedestrian traffic. It shall not be used in heavy commercial or industrial settings (heavy-rolling loads or high point-loads).

2.6.1.3 When installed over wood substrates, 1.5 inches (38 mm) minimum thickness AccuLevel G40 or 1 inch (25 mm) minimum with reinforcing wire lath is required, and a minimum AccuLevel G40 compressive strength of 3,500 PSI.

** NOTE TO SPECIFIER ** AccuQuiet products are only required for acoustical treatment of floor-ceiling assemblies. Delete if not required.

2.6.1.4 When used in conjunction with AccuQuiet, this system requires a minimum of 1.5 inches (38 mm) of AccuLevel G40 at a minimum compressive strength of 3,500 PSI.

2.6.1.5 In bonded systems, expansion joints shall be honored by saw-cutting the gypsum cement and Ultrapla M20 Plus to the depth of the original substrate, and to the width of the original expansion joint.

2.6.1.6 When used at or below grade, a moisture vapor barrier shall be provided.

2.6.1.7 Materials:

** NOTE TO SPECIFIER ** AccuQuiet products are only required for acoustical treatment of floor-ceiling assemblies. Delete if not required.

2.6.1.7.1 Sound Mat: AccuQuiet Sound Mat.

2.6.1.7.2 Hydraulic Cement: AccuLevel G40.

2.6.1.7.3 Epoxy Primer: FusionTEC Floor Priming System.

2.6.1.7.4 Cementitious Topping: Ultraplan M20 Plus.

2.6.1.7.5 Primer: Use an approved AccuCrete Primer.

2.6.1.7.6 Sand: Clean, washed mason sand as per specifications in AccuCrete Application Manual.

2.6.1.7.7 Water: Potable water, free from contaminants.

** NOTE TO SPECIFIER ** AccuLevel SD30 is a premium polymer and Portland cement modified gypsum based underlayment. With high flow character, the product is pumpable and fast applied without the need for troweling, and is designed to deliver a smooth monolithic surface over corrugated steel construction assemblies. Thinner and lighter than conventional concrete, AccuLevel SD30 removes weight from the construction assembly, thereby reducing the overall cost of the structure. Delete system and options not required.

2.7 GYPSUM FLOOR UNDERLAYMENT FOR CORRUGATED METAL DECK

2.7.1 Gypsum Floor Underlayment for Corrugated Metal Deck: AccuLevel SD30 Gypsum Underlayment for Corrugated Steel Deck Construction as manufactured by Allied Custom Gypsum.

2.7.1.1 Acceptable Substrates: Corrugated Steel Deck.

2.7.1.1.1 Minimum Steel Deck Standards: Minimum 22 gauge (0.759 mm) galvanized steel deck with minimum flute depth of 9/16 inch (14 mm).