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ASTM_C_1666_-_C_1666M_-_08_2015.pdf

1、Designation:C1666/C1666M08(Reapproved 2015)Standard Specification forAlkali Resistant(AR)Glass Fiber for GFRC and Fiber-Reinforced Concrete and Cement1This standard is issued under the fixed designation C1666/C1666M;the number immediately following the designation indicates theyear of original adopt

2、ion or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers minimum requirements foralkali resistant(AR)glass fibe

3、rs intended for use in glassfiber-reinforced concrete(GFRC)by spray-up,glass fiber-reinforced concrete premix,fiber-reinforced concrete,andother cementitious based products.1.2 This specification provides for AR glass fiber types andconfigurations that can be readily incorporated into concretemixes,

4、typical physical properties,minimum zirconia content,and prescribes testing procedures to establish conformance tothese requirements.1.3 This specification does not address the types of coatingsor lubricants used in the manufacturing process of the fibers.1.4 In the case of conflict between a more s

5、tringent require-ment of a product specification and a requirement of thisspecification,the product specification shall prevail.In the caseof a conflict between a requirement of the product specificationor a requirement of this specification and a more stringentrequirement of the purchase order,the

6、purchase order shallprevail.The purchase order requirements shall not take prece-dence if they,in any way,violate the requirements of theproduct specification or this specification;for example,by thewaiving of a test requirement or by making a test requirementless stringent.1.5 The values stated in

7、either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theinch-pound units are shown in brackets.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may r

8、esult in non-conformancewith the standard.1.6 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory l

9、imitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D578 Specification for Glass Fiber StrandsD1577 Test Methods for Linear Density of Textile FibersD2256 Test Method for Tensile Properties of Yarns by theSingle-Strand MethodD3800 Test Method for Density of High-Modulus FibersD4963 Tes

10、t Method for Ignition Loss of Glass Strands andFabrics2.2 ISO Standards:3ISO 1887 Textile GlassDetermination of Combustible-Matter ContentISO 1888 Textile GlassStaple Fibres or FilamentsDetermination of Average DiameterISO 1889 Reinforcement YarnsDetermination of LinearDensityISO 3341 Textile Glass

11、YarnsDetermination of BreakingForce and Breaking Elongation2.3EN Standards:4EN 14649 Precast Concrete ProductsTest Method forStrength Retention of Glass Fibre in Cement and Concrete2.4Japanese Industrial Standards:5JISR 3420 Testing Methods of Textile Glass Products3.Terminology3.1 Definitions of Te

12、rms Specific to This Standard:3.1.1 alkali resistant(AR)glass fiber,na glass fiberproduct that is resistant to the alkaline conditions that exist inmatrices such as those based on Portland cement,and that are1This specification is under the jurisdiction ofASTM Committee C27 on PrecastConcrete Produc

13、ts and is the direct responsibility of Subcommittee C27.40 on GlassFiber Reinforced Concrete.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 2007.Last previous edition approved in 2008 as C1666/C1666M 08.DOI:10.1520/C1666_C1666M-08R15.2For referenced ASTM standards,visi

14、t the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036

15、,http:/www.ansi.org.4Available from European Committee for Standardization(CEN),36 rue deStassart,B-1050,Brussels,Belgium,http:/www.cenorm.be.5Available from Japanese Standards Organization(JSA),4-1-24 AkasakaMinato-Ku,Tokyo,107-8440,Japan,http:/www.jsa.or.ja.Copyright ASTM International,100 Barr Ha

16、rbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 used for the reinforcement of cement,mortar,and concreteproducts.The resistance is due mostly to the specific compo-sition of the glass.3.1.2 chopped strands,nstrands,as defined in 3.1.9,chopped to discrete lengths,usually between 3 and 50 mm0.125 and 2 in.3.1.3 filament,na single glass fiber,sometimes referred toas monofilament.3.1.4 GFRC,nglass fiber-reinforced concrete,sometimesreferred to as GRC.3.1.5 matrix,nthe concrete(

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