1、Designation:C171217Standard Test Method forRapid Assessment of Static Segregation Resistance of Self-Consolidating Concrete Using Penetration Test1This standard is issued under the fixed designation C1712;the number immediately following the designation indicates the year oforiginal adoption or,in t
2、he 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.Scope*1.1 This test method covers the rapid assessment of staticsegregation resistance of normal-wei
3、ght self-consolidatingconcrete(SCC).The test does not measure static segregationresistance directly,but provides an assessment of whetherstatic segregation is likely to occur.1.2 The test apparatus and protocol were developed basedon tests with SCC mixtures containing saturated surface dry(SSD)coars
4、e aggregates ranging in relative density from 2.67to 2.79 and in nominal maximum size from 9.5 mm to 25 mm.For SCC mixtures outside these ranges,testing is recom-mended to establish a correlation between penetration depthand static segregation measured in accordance with TestMethod C1610/C1610M.This
5、 test method shall not be used toassess the static segregation resistance of self-consolidatingconcrete containing lightweight aggregates or heavyweightaggregates without prior testing to establish a correlation.1.3 The values stated in SI units are to be regarded asstandard.No other units of measur
6、ement are included in thisstandard.1.4 The text of this standard references notes and footnotesthat provide explanatory material.These notes and footnotesshall not be considered as requirements of the standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated
7、with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.(WarningFresh hydraulic cementitious mixtures are causticand may cause chemical burns to skin
8、and tissue uponprolonged exposure.2)1.6 This international standard was developed 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 Trad
9、e Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3C125 Terminology Relating to Concrete and Concrete Ag-gregatesC143/C143M Test Method for Slump of Hydraulic-CementConcreteC172/C172M Practice for Sampling Freshly Mixed Con-creteC173/C173M Test Method f
10、orAir Content of Freshly MixedConcrete by the Volumetric MethodC192/C192M Practice for Making and Curing Concrete TestSpecimens in the LaboratoryC1610/C1610M Test Method for Static Segregation of Self-Consolidating Concrete Using Column TechniqueC1611/C1611M Test Method for Slump Flow of Self-Consol
11、idating ConcreteC1758/C1758M Practice for Fabricating Test Specimenswith Self-Consolidating Concrete3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method,referto Terminology C125.3.2 Definitions of Terms Specific to This Standard:3.2.1 static segregation resistance,nre
12、sistance of a con-crete mixture to segregation of the mortar component from thecoarse aggregate while the concrete is at rest and before initialsetting.1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregates and is the direct responsibility of Subcommitte
13、eC09.47 on Self-Consolidating Concrete.Current edition approved Aug.1,2017.Published August 2017.Originallyapproved in 2009.Last previous edition approved in 2014 as C1712 14.DOI:10.1520/C1712-17.2Section on Safety Precautions,Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards,Vo
14、l.04.02.3For 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.*A Summary of Changes section appears at the end of this s
15、tandardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of Int
16、ernational Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.Summary of Test Method4.1 This test method uses a penetration apparatus(shown inFigs.1 and 2)and an inverted slump mold(Fig.3).A sampleof freshly mixed self-consolidating concrete is placed in aninverted slump mold without tamping or vibration.The hollowcylinder attached to a metal rod is aligned in the center of theinverted slump mold as shown in Fig.3.The hollow