1、Designation:D558/D558M19Standard Test Methods forMoisture-Density(Unit Weight)Relations of Soil-CementMixtures1This standard is issued under the fixed designation D558/D558M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of
2、 last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 These test methods cover the determ
3、ination of therelationship between the water content and the density ofsoil-cement mixtures when compacted before cement hydra-tion as prescribed.1.2 A 0.0333-ft3944-cm3 mold and a 5.50-lbf 24.5-N ormass of 2.5-kg rammer dropped from a height of 12.0 in.30.5cm are used and two methods,depending on s
4、oil gradation,are covered,as follows:SectionsTest Method A,using soil material passing a No.4 4.75-mm sieve.This method shall be used when 100%of the soil sample passes theNo.4 4.75-mm sieve8Test Method B,using soil material passing a34-in.19.0-mm sieve.This method shall be used when part of the soi
5、l sample is retained onthe No.4 4.75-mm sieve.This test method may be used only onmaterials with 30%or less retained on the34-in.19.0-mm sieve91.3 UnitsThe values stated in inch-pound units or SI unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivale
6、nts;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.3.1 The gravitational system of inch-pound units is usedwhen dealing with inch-pound units.In this system,the pound(lbf)represents a unit of force(we
7、ight),while the unit for massis slugs.The slug unit is not given,unless dynamic(F=ma)calculations are involved.1.3.2 It is common practice in the engineering/constructionprofession to concurrently use pounds to represent both a unitof mass(lbm)and of force(lbf).This implicitly combines twoseparate s
8、ystems of units;that is,the absolute system and thegravitational system.It is scientifically undesirable to combinethe use of two separate sets of inch-pound units within a singlestandard.This standard includes the gravitational system ofinch-pound units and does not use/present the slug unit formas
9、s.However,the use of balances or scales recording poundsof mass(lbm)or recording density in lbm/ft3shall not beregarded as nonconformance with this standard.1.4 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.4.1 Th
10、e procedures used to specify how data are collected/recorded and calculated in this standard are regarded as theindustry standard.In addition,they are representative of thesignificant digits that should generally be retained.The proce-dures used do not consider material variation,purpose forobtainin
11、g the data,special purpose studies,or any consider-ations for the users objectives;and it is common practice toincrease or reduce significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof this standard to consider significant digits used in analysismeth
12、ods for the engineering design.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,health,and environmental practices and deter-mine the applicability of regulator
13、y limitations prior to use.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 Trade Organiz
14、ation TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C150/C150M Specification for Portland CementC595/C595M Specification for Blended Hydraulic CementsD559/D559M Test Methods for Wetting and Drying Com-pacted Soil-Cement Mixtures1These test methods are under the j
15、urisdiction ofASTM Committee D18 on Soiland Rock and are the direct responsibility of Subcommittee D18.15 on StabilizationWith Admixtures.Current edition approved Dec.1,2019.Published January 2020.Originallyapproved in 1938.Last previous edition approved in 2011 as D55811.DOI:10.1520/D0558_D0558M-19
16、.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.*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 developed in accordance with internationally recognized prin
