ASTM_D_7357_-_07_2012.pdf

Designation:D735707(Reapproved 2012)Standard Specification forCellulose Fibers for Fiber-Reinforced Concrete1This standard is issued under the fixed designation D7357;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last 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 minimum requirements forcellulose fibers intended for use in fiber-reinforced concrete,and other cementitious products.1.2 This specification provides for measurement of proper-ties,definition of types,typical properties,and prescribestesting procedures to establish conformance to these require-ments.1.3 In the case of conflict between a more stringent 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 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.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.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 result in non-conformancewith the standard.1.5 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 limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C1116 Specification for Fiber-Reinforced Concrete andShotcreteD6942 Test Method for Stability of Cellulose Fibers inAlkaline Environments2.2 TAPPI(Technical Association of the Pulp and PaperIndustry):3T 205 Forming handsheets for physical tests of pulpsT 222 Acid-insoluble lignin in wood and pulpT 231 Zero-span breaking strength of pulp(dry zero-spantensile)T 232 Fiber length of pulp by projectionT 233 Fiber length of pulp by classificationT 234 Coarseness of pulp fibersT 236 Kappa number of pulpT 259 Species identification of non-wood plant fibersT 263 Identification of wood and fibers from conifers2.3 ACI(American Concrete Institute)Documents:4544.1R Committee Report on Fiber-Reinforced Concrete2.4 ICC-ES Documents:5AC 217 Acceptance Criteria for Concrete with Virgin Cel-lulose Fibers3.Terminology3.1 Definitions:3.1.1 alkaline stability,nresistance to strength loss due toexposure to alkaline environments,as measured in Test MethodD6942.3.1.2 coarseness,nlinear density given in units of mg/100m.(See TAPPI T 234.)This unit is termed decigrex,andcan be converted to the standard textile linear density unit,denier,which is weight in grams of 9000 meters of syntheticfiber.3.1.3 durability/compatibility with concrete,nresistanceto strength loss based on ZSSR testing(Test Method D6942)using saturated calcium hydroxide and 1N sodium hydroxideas alkaline environments.(See ICC-ES AC 217,section 4.6.)1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.36 on Cellulose and Cellulose Derivatives.Current edition approved June 1,2012.Published August 2012.Originallyapproved in 2007.Last previous edition approved in 2007 as D7357 07.DOI:10.1520/D7357-07R12.2For referenced ASTM standards,visit 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 Technical Association of the Pulp and Paper Industry(TAPPI),15 Technology Parkway South,Norcross,GA 30092,http:/www.tappi.org.4Available from American Concrete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.aci-int.org.5Available from ICC-ES,5360 Workman Mill Road,Whittier,CA 90601,http:/www.icc-es.org,under“Approved Criteria.”Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.4zero-span stability ratio(ZSSR),n the ratio of thezero-span tensile after exposure to an alkaline environment tothe zero-span tensile of the control fibers(that is,fibers notexposed to an alkaline environment)as defined in Test MethodD6942.3.1.5 zero-span tensile,nmeasurement of individual fiberstrength,as defined in TAPPI Method T 231 based on testingstandard handsheets made according to TAPPI Method T 205.4.Classification4.1 Cellulose