1、Designation:C1480/C1480M07(Reapproved 2012)Standard Specification forPackaged,Pre-Blended,Dry,Combined Materials for Use inWet or Dry Shotcrete Application1This standard is issued under the fixed designation C1480/C1480M;the number immediately following the designation indicates theyear of original
2、adoption 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.Scope*1.1 This specification covers laboratory performance stan-dards for pre-blende
3、d,dry,packaged,combined materials foruse in wet or dry shotcrete applications that are delivered to apurchaser with the ingredients uniformly mixed.The use ofsupplemental materials,placement,curing,or protection of theshotcrete after delivery to the purchaser is not addressed by thisspecification.1.
4、2 The values stated in either SI units or inch-pound unitsshall be regarded separately as standard.The values stated ineach system are not exact equivalents;therefore,each systemshall be used independently of the other.Combining valuesfrom the two systems may result in nonconformance with thestandar
5、d.1.3 The following safety hazards caveat pertains only to thetest method portion of this specification:This standard doesnot purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the user of thisstandard to establish appropriate safety and health p
6、racticesand determine the applicability of regulatory limitations priorto use.2.Referenced Documents2.1 ASTM Standards:2C78 Test Method for Flexural Strength of Concrete(UsingSimple Beam with Third-Point Loading)C150 Specification for Portland CementC387/C387M Specification for Packaged,Dry,Combined
7、Materials for Concrete and High Strength MortarC595 Specification for Blended Hydraulic CementsC1012 Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate SolutionC1140 Practice for Preparing and Testing Specimens fromShotcrete Test PanelsC1157 Performance Specification for
8、Hydraulic CementC1202 Test Method for Electrical Indication of ConcretesAbility to Resist Chloride Ion PenetrationC1385/C1385M Practice for Sampling Materials for Shot-creteC1399 Test Method for Obtaining Average Residual-Strength of Fiber-Reinforced ConcreteC1436 Specification for Materials for Sho
9、tcrete2.2 National Institute of Standards and Technology:Handbook 44 Specifications,Tolerances,and Other Techni-cal Requirements for Commercial Weighing Devices33.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Packaged,pre-blended,dry,combined materialsforuse in wet or dry shotc
10、rete applications consist primarily ofhydraulic cement and concrete aggregates blended,in a drystate,with other ingredients to enhance one or more propertiesof the mixture.4.Classification4.1 Dry packaged shotcrete materials are categorized as totype and grade.4.1.1 Shotcrete type is based on aggreg
11、ate size.4.1.2 Type FA shotcrete shall contain aggregate in accor-dance with the requirements of Specification C1436 Grading#1.Aggregates failing to comply with Grading#1 can be usedonly if preconstruction testing proves that they give satisfac-tory results or if acceptable service records are avail
12、able.4.1.3 Type CA shotcrete shall contain coarse and fineaggregates in accordance with the requirements of Specifica-tion C1436,Grading No.2.Aggregates failing to comply withGrading#2 can be used only if preconstruction testing provesthat they give satisfactory results or if acceptable servicerecor
13、ds are available.1This specification is under the jurisdiction of ASTM committee C09 onConcrete and Concrete Aggregatesand is the direct responsibility of SubcommitteeC09.46 on Shotcrete.Current edition approved Oct.1,2012.Published November 2012.Originallyapproved in 2000.Last previous edition appr
14、oved in 2007 as C1480 07.DOI:10.1520/C1480_C1480M-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
15、 from National Institute of Standards and Technology(NIST),Superintendent of Documents,U.S.Government Printing Office,Washington,DC20402*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.Unit
16、ed States1 4.2 Shotcrete grade is based on the desired physical prop-erties of the material.4.2.1 Grade GU shotcrete is a general use product.4.2.2 Grade SR shotcrete has sulfate resistance in accor-dance with the requirements of 7.44.2.3 Grade LP shotcrete has permeability values in accor-dance with the requirements of 7.54.2.4 Grade FR shotcrete has average residual strengthvalues in accordance with the requirements of 7.6,Type I or II.4.2.4.1 Class I shotcrete has average residual strength va