1. Scope

1.1 This specification covers fiber-mat reinforced cement substrate sheets manufactured to be dimensionally stable and suitable as either an unfinished substrate (see Note 1) or as a substrate for decoration such as natural stone or tile in internal wet and dry areas.

1.2 This specification is not applicable to asbestos-cement flat sheets (Specification C220); non-asbestos fiber cement flat sheets for exterior applications such as claddings, facades, curtain walls, and soffits (Specification C1185); gypsum backing board and coreboard (Specification C442); water-resistant gypsum backing board (Specification C630); glass mat gypsum backing board (Specification C1178); particle boards (Definitions D1554); and discrete non-asbestos fiber cement interior substrate sheets (Specification C1288).

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C220 Specification for Flat Asbestos-Cement Sheets

C442/C442M Specification for Gypsum Backing Board, Gypsum Coreboard, and Gypsum Shaftliner Board

C473 Test Methods for Physical Testing of Gypsum Panel Products

C630/C630M Specification for Water-Resistant Gypsum Backing Board

C666/C666M Test Method for Resistance of Concrete to Rapid Freezing and Thawing

C947 Test Method for Flexural Properties of Thin-Section Glass-Fiber-Reinforced Concrete (Using Simple Beam With Third-Point Loading)

C1154 Terminology for Non-Asbestos Fiber-Reinforced Cement Products

C1178/C1178M Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel

C1185 Test Methods for Sampling and Testing Non-Asbestos Fiber-Cement Flat Sheet, Roofing and Siding Shingles, and Clapboards

C1186 Specification for Flat Fiber-Cement Sheets

C1288 Specification for Discrete Non-Asbestos Fiber-Cement Interior Substrate Sheets

C1397 Practice for Application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage

C1516 Practice for Application of Direct-Applied Exterior Finish Systems

C1535 Practice for Application of Exterior Insulation and Finish Systems Class PI

D1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel Materials

D1554 Terminology Relating to Wood-Base Fiber and Particle Panel Materials

D2394 Test Methods for Simulated Service Testing of Wood and Wood-Base Finish Flooring

E84 Test Method for Surface Burning Characteristics of Building Materials

G21 Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi

G22 Practice for Determining Resistance of Plastics to Bacteria

ANSI Standards

Keywords

acceptance; air cured; appearance; density; edge straightness; finish; flexural strength; glass mat cement sheet; inspection; interior wet area application; length and width tolerance; mechanical properties; minimum equilibrium strength; minimum wet strength; moisture content; moisture movement; nominal length; nominal thickness; nominal width; non-asbestos fiber-mat; packaging; physical properties; pressure cured; sampling; shipping; squareness tolerance; storage; supplementary requirements; supplementary tests; surface burning characteristics; thickness requirements; thickness tolerance; third party certification; tolerance; type tests; warm water resistance; workmanship; Cement materials/applications--specifications; Fiber-mat reinforced cement substrate sheets; Glass mat cement sheet; Nonasbestos fiber-cement materials--specifications; Substrate sheets

ICS Code

ICS Number Code 91.100.40 (Products in fibre-reinforced cement)

DOI: 10.1520/C1325-99

ASTM International is a member of CrossRef.