ASTM C1325-2008a Standard Specification for Non-Asbestos Fiber-Mat Reinforced Cementitious Backer Units.pdf
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1、Designation: C 1325 08aStandard Specification forNon-Asbestos Fiber-Mat Reinforced Cementitious BackerUnits1This standard is issued under the fixed designation C 1325; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers non-asbestos fiber-mat rein-forced cementitious backer units manufactured to be dimen-sionally
3、stable and suitable as either an unfinished substrate(see Note 1) or as a substrate for decoration such as naturalstone or tile on walls, floors, or decks in wet and dry areas. Itis also suitable to be used as a substrate in the Application ofClass PB Exterior Insulation Finish Systems (Practice C 1
4、397),the Application of Direct-Applied Finish Systems (PracticeC 1516), and the Application of Exterior Insulation FinishSystems Class PI (Practice C 1535).NOTE 1When used as an unfinished substrate, consult the manufac-turers written installation literature for proper application details.1.2 This s
5、pecification is not applicable to asbestos-cementflat sheets (Specification C 220); non-asbestos fiber cement flatsheets for exterior applications such as claddings, facades,curtain walls, and soffits (Specification C 1186); gypsum back-ing board, coreboard, and shaftliner (Specification C 442);wate
6、r-resistant gypsum backing board (Specification C 630);glass mat gypsum backing board (Specification C 1178); par-ticle boards (Definitions D 1554); and discrete non-asbestosfiber cement interior substrate sheets (Specification C 1288).1.3 UnitsThe values stated in inch-pound units are to beregarded
7、 as standard. The values given in parentheses aremathematical conversions to SI units that are provided forinformation only and are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C 220 Specification for Flat Asbestos-Cement SheetsC 442/C 442M Specification for Gypsum Backing Boar
8、d,Gypsum Coreboard, and Gypsum Shaftliner Board3C 473 Test Methods for Physical Testing of Gypsum PanelProductsC 630/C 630M Specification for Water-Resistant GypsumBacking Board3C 666/C 666M Test Method for Resistance of Concrete toRapid Freezing and ThawingC 947 Test Method for Flexural Properties
9、of Thin-SectionGlass-Fiber-Reinforced Concrete (Using Simple BeamWith Third-Point Loading)C 1154 Terminology for Non-Asbestos Fiber-ReinforcedCement ProductsC 1178/C 1178M Specification for Coated Glass MatWater-Resistant Gypsum Backing PanelC 1185 Test Methods for Sampling and Testing Non-Asbestos
10、Fiber-Cement Flat Sheet, Roofing and SidingShingles, and ClapboardsC 1186 Specification for Flat Fiber-Cement SheetsC 1288 Specification for Discrete Non-Asbestos Fiber-Cement Interior Substrate SheetsC 1397 Practice for Application of Class PB Exterior Insu-lation and Finish SystemsC 1516 Practice
11、for Application of Direct-Applied ExteriorFinish SystemsC 1535 Practice for Application of Exterior Insulation andFinish Systems Class PID 1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel MaterialsD 1554 Terminology Relating to Wood-Base Fiber andParticle Panel Mater
12、ialsD 2394 Test Methods for Simulated Service Testing ofWood and Wood-Base Finish FlooringE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsG21 Practice for Determining Resistance of SyntheticPolymeric Materials to FungiG22 Practice for Determining Resistance of Plastics toBact
13、eria32.2 ANSI Standards:4A118.1 Specification for Dry-Set Portland Cement MortarA118.4 Specification for Latex-Portland Cement Mortar1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.01 on Non-As
14、bestos Fiber-Mat Reinforced Products.Current edition approved Nov. 1, 2008. Published November 2008. Originallyapproved in 1996. Last previous edition approved in 2008 as C 1325 08.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.or
15、g. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floo
16、r, New York, NY 10036, http:/www.ansi.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.A136.1 Standard for Organic Adhesives for Installation ofCeramic Tile3. Terminology3.1 DefinitionsRefer to Terminology C 1154.4. Classification
17、4.1 Flat sheets covered by this specification are divided intotwo types, according to their intended application.4.1.1 Type ASheets are intended for exterior applicationsas a substrate for other cladding materials, or as an unfinishedsubstrate for decoration such as natural stone, tile, or coatings.
18、Type A products are also suitable for interior use.4.1.2 Type BSheets are intended for covered exteriorapplications such as soffit areas, or for interior dry or wet areaapplications as a desired unfinished substrate or an unfinishedsubstrate for decoration such as natural stone or tile, wheresubstra
19、te dimensional stability is required.NOTE 2Flat sheets may be supplied coated or uncoated.5. Composition and Manufacture5.1 CompositionThis specification is applicable to non-asbestos fiber-mat reinforced cementitious backer units con-sisting essentially of an inorganic hydraulic binder or a calcium
20、silicate binder formed by the chemical reaction of a siliceousmaterial and a calcareous material, reinforced by fiber-matmade of organic fibers, inorganic non-asbestos fibers, or both.NOTE 3Process aids, fillers, pigments, and other fibers that arecompatible with the fiber-mat cement may be added.5.
21、2 ManufactureThese products are formed either with orwithout pressure and cured, either under natural or acceleratedconditions, to meet the property requirements of this specifi-cation.6. Mechanical and Physical Properties6.1 Mechanical and physical properties shall be determinedon an uncoated produ
22、ct wherever practical. Where the productsare supplied coated, this material shall also be tested with theresults identified as applying to coated material.6.2 SamplingObtain five samples of the particular cementsubstrate sheet to be tested from a commercial lot of not lessthan 50 000 ft2to conduct t
23、he tests described in this specifi-cation.6.3 Mechanical Properties:6.3.1 Flexural StrengthWhen tested in accordance withTest Method C 947, flexural strength shall be not less than 750psi (5170 kPa).6.3.2 Sheets shall be tested and specified in both the wet andequilibrium conditions and shall meet t
24、he minimum wet andminimum equilibrium flexural strength requirements.NOTE 4When sampled from continuous production, these tests maybe conducted on dry, equilibrium, or saturated specimens, provided arelationship can be established between this testing and the specifiedvalues.6.4 Physical Properties:
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