1、Designation:C1141/C1141M15Standard Specification forAdmixtures for Shotcrete1This standard is issued under the fixed designation C1141/C1141M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in paren
2、theses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers materials proposed for use asadmixtures to be added to a portland-cement shotcrete mixturefor the purpose of altering the prop
3、erties of the mixture.1.2 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 no
4、n-conformancewith the standard.1.3 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
5、prior to use.2.Referenced Documents2.1 ASTM Standards:2C125 Terminology Relating to Concrete and Concrete Ag-gregatesC136/C136M Test Method for Sieve Analysis of Fine andCoarse AggregatesC138/C138M Test Method for Density(Unit Weight),Yield,and Air Content(Gravimetric)of ConcreteC173/C173M Test Meth
6、od forAir Content of Freshly MixedConcrete by the Volumetric MethodC183/C183M Practice for Sampling and the Amount ofTesting of Hydraulic CementC231/C231M Test Method forAir Content of Freshly MixedConcrete by the Pressure MethodC260/C260M Specification for Air-Entraining Admixturesfor ConcreteC311/
7、C311M Test Methods for Sampling and Testing FlyAsh or Natural Pozzolans for Use in Portland-CementConcreteC494/C494M Specification for Chemical Admixtures forConcreteC618 Specification for Coal Fly Ash and Raw or CalcinedNatural Pozzolan for Use in ConcreteC979/C979M Specification for Pigments for I
8、ntegrally Col-ored ConcreteC989/C989M Specification for Slag Cement for Use inConcrete and MortarsC1240 Specification for Silica Fume Used in CementitiousMixturesC1438 Specification for Latex and Powder Polymer Modi-fiers for use in Hydraulic Cement Concrete and MortarD98 Specification for Calcium C
9、hloride2.2 ACI Documents:318 Building Code Requirements for Structural Concrete33.Terminology3.1 For definitions of terms used in this standard,refer toTerminology C125.4.Classification4.1 This specification recognizes grades of admixtures,usedin shotcrete made by either of two processes,as follows:
10、4.1.1 Type IDry mix shotcrete.4.1.1.1 Grade 1Accelerating admixture.4.1.1.2 Grade 2Retarding admixture.4.1.1.3 Grade 3Pozzolanic admixture.4.1.1.4 Grade 4Metallic iron admixture.4.1.1.5 Grade 5Coloring admixture.4.1.1.6 Grade 6Organic polymer admixture.4.1.1.7 Grade 7Not applicable.4.1.1.8 Grade 8No
11、t applicable.4.1.2 Type IIWet-mix shotcrete.4.1.2.1 Grade 1Accelerating admixture.4.1.2.2 Grade 2Retarding admixture.4.1.2.3 Grade 3Pozzolanic admixture.4.1.2.4 Grade 4Metallic iron admixture.4.1.2.5 Grade 5Coloring admixture.4.1.2.6 Grade 6Organic polymer admixture.1This specification is under the
12、jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.46 on Shotcrete.Current edition approved Dec.1,2015.Published February 2016.Originallyapproved in 1989.Last previous edition approved in 2008 as C1141/C1141M 08.DOI:10.1520/C1141
13、_C1141M-15.2For 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 American Concrete Institute(ACI),P.O.Bo
14、x 9094,FarmingtonHills,MI 48333-9094,http:/www.concrete.org.*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.United States1 4.1.2.7 Grade 7Water reducing admixture.4.1.2.8 Grade 8Air-entrai
15、ning admixture.4.1.3 Each of the above grades is further classified byidentifying it according to the following classes:4.1.3.1 Class ALiquid.4.1.3.2 Class BNon-liquid.5.Ordering Information5.1 The purchaser shall include the following information inthe contract or purchase order,if applicable:5.1.1
16、 The specification designation and date of issue,5.1.2 Type of shotcrete,grade and class of admixture,5.1.3 Quantity of admixture required,5.1.4 Special packaging and package marking requirements,5.1.5 Special sampling for inspection requirements,and5.1.6 Any supplementary requirements.6.Requirements6.1 Shotcrete admixtures shall conform to the requirementsfor the applicable type and grade as given in Table 1.6.2 At the request of the purchaser,the manufacturer shallstate in writing that the adm
