1、Designation:C330/C330M17aStandard Specification forLightweight Aggregates for Structural Concrete1This standard is issued under the fixed designation C330/C330M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revisio
2、n.A number in parentheses 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 lightweight aggregates in-tended for use in structural concrete in which prime consider-ations are reducing
3、 the density while maintaining the compres-sive strength of the concrete.Procedures covered in thisspecification are not intended for job control of concrete.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
4、be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.2.1 With regard to other units of measure,the valuesstated in inch-pound units are to be regarded as standard.1.3 The text of this
5、standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.NOTE1This specification is regarded as adequate to ensure satisfac-tory lightweight aggregates for most con
6、crete.It is recognized that it maybe either more or less restrictive than needed for some conditions and forspecial purposes,such as fire resistance,fill,and concrete constructions,the use of which is based on load tests rather than conventional designprocedures.1.4 This international standard was d
7、eveloped in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Docu
8、ments2.1 ASTM Standards:2C29/C29M Test Method for Bulk Density(“Unit Weight”)and Voids in AggregateC31/C31M Practice for Making and Curing Concrete TestSpecimens in the FieldC33/C33M Specification for Concrete AggregatesC39/C39M Test Method for Compressive Strength of Cylin-drical Concrete Specimens
9、C40/C40M Test Method for Organic Impurities in FineAggregates for ConcreteC114 Test Methods for Chemical Analysis of HydraulicCementC125 Terminology Relating to Concrete and Concrete Ag-gregatesC127 Test Method for Relative Density(Specific Gravity)and Absorption of Coarse AggregateC128 Test Method
10、for Relative Density(Specific Gravity)and Absorption of Fine AggregateC136/C136M Test Method for Sieve Analysis of Fine andCoarse AggregatesC142/C142M Test Method for Clay Lumps and FriableParticles in AggregatesC151/C151M Test Method for Autoclave Expansion of Hy-draulic CementC157/C157M Test Metho
11、d for Length Change of HardenedHydraulic-Cement Mortar and ConcreteC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC496/C496M Test Method for Splitting Tensile Strength ofCylindrical Concrete SpecimensC567/C567M Test Method for Determining Density ofStructural Light
12、weight ConcreteC641 Test Method for Iron Staining Materials in Light-weight Concrete AggregatesC666/C666M Test Method for Resistance of Concrete toRapid Freezing and ThawingC702/C702M Practice for Reducing Samples of Aggregateto Testing SizeD75/D75M Practice for Sampling Aggregates3.Terminology3.1 D
13、efinitions:3.1.1 For definitions of terms used in this specification,referto Terminology C125.1This specification is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of SubcommitteeC09.21 on Lightweight Aggregates and Concrete.Current e
14、dition approved June 15,2017.Published July 2017.Originallyapproved in 1953.Last previous edition approved in 2017 as C330/C330M17.DOI:10.1520/C0330_C0330M-17A.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AST
15、MStandards volume information,refer to the standards Document Summary page onthe ASTM website.*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 StatesThis international standard was d
16、eveloped in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Aggregate Types4.1 Two general types of lightweight aggregates are coveredby this specification,as follows:4.1.1 Aggregates prepared by expanding,pelletizing,orsintering products such as blast-furnace slag,clay,diat
