1、Designation:D315511Standard Test Method forLime Content of Uncured Soil-Lime Mixtures1This standard is issued under the fixed designation D3155;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in par
2、entheses 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 determination of the limecontent of soil-lime mixtures sampled from a project underconstruction or at the pug-mill,or both.
3、1.2 In soils with highly variable amounts of CaCo3(such ascaliche),it may be difficult to obtain a representative sample.1.3 The values stated in SI units are to be regarded asstandard.The values stated in inch-pound units are providedfor information only.1.4 This standard does not purport to addres
4、s 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 prior to use.2.Referenced Documents2.1 ASTM Standards:2C51 Terminology Rela
5、ting to Lime and Limestone(as usedby the Industry)C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD653 Terminology Relating to Soil,Rock,and ContainedFluidsD1193 Specification for Reagent WaterD3740 Practice for Minimum Requirements for AgenciesEng
6、aged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Standard Masses for Use in Soil,Rock,andConstruction Materials TestingE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3.Te
7、rminology3.1 Definitions:3.1.1 Refer to Terminology C51 for terms relating to lime.3.1.2 Refer to Terminology D653 for terms relating to soil.4.Summary of Test Method4.1 A representative specimen is obtained after thoroughmixing of the soil and lime and sieving through a 4.75-mm(No.4)sieve.4.2 A 300
8、-g specimen of the material passing the 4.75-mm(No.4)sieve is shaken together with 600 mL of ammoniumchloride solution.4.3 A10-mL aliquot of fluid from 4.2 is mixed with 100 mLof water,and sodium hydroxide is added until a pH of 13.0 to13.5 is obtained.4.4 Triethanolamine and indicator powder is add
9、ed to thesolution and EDTA is used to titrate to a clear blue endpoint.4.5 The mL of EDTA used is compared to a calibrationcurve to determine percent lime by dry mass of the totalspecimen.5.Significance and Use5.1 This test method can be used to determine the limecontent of uncured soil-lime mixture
10、s.5.1.1 Lime content in soil-lime mixtures is needed byagencies such as highway departments,to determine limecontent in soil-lime mixtures for payments to contractors,tocheck compliance with specifications,or to check the efficacyof quality control measures.5.1.2 Lime content is also needed by produ
11、cers of soil-limemixtures who have to determine lime content for productioncontrol purposes.NOTE1The quality of the result produced by this standard isdependent on the competence of the personnel performing it,and thesuitability of the equipment and facilities used.Agencies that meet thecriteria of
12、Practice D3740 are generally considered capable of competentand objective testing/sampling/inspection/etc.Users of this standard arecautioned that compliance with Practice D3740 does not in itself ensurereliable results.Reliable results depend on many factors;Practice D3740provides a means of evalua
13、ting some of those factors.1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.15 on Stabilization WithAdmixtures.Current edition approved Jan.1,2011.Published February 2011.Originallyapproved in 1973.Last previous edi
14、tion approved in 2006 as D3155-98(2006).DOI:10.1520/D3155-11.2For 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 Su
15、mmary 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 6.Apparatus6.1 Balance,a class GPI balance having a capacity of 1000g or more and meeting the requirements of SpecificationD4753 f
16、or a balance of 0.01-g readability.6.2 Glassware25-mL graduated cylinder,1000-mL gradu-ated cylinder,2-L volumetric flask,25-mL burets,10-mLvolumetric pipets,250-mL Erlynmeyer flasks,medicine drop-pers.6.3 Plasticware1.9-L(2 qt)polyethylene containers withsnap-on covers,300-mm(12 in.)diameter plastic funnel,19-L(5-gal)polyethylene bottles for ammonium chloride,19-L(5-gal)polyethylene bottles for water.6.4 Buret Stand,for 25-mL buret.6.5 Stirrer and Stirring Bar,magnetic,or equivalent appa-ratus.
