1、Designation:D4320/D4320M09Standard Practice forLaboratory Preparation of Chemically Grouted SoilSpecimens for Obtaining Engineering Parameters1This standard is issued under the fixed designation D4320/D4320M;the number immediately following the designation indicates theyear of original adoption or,i
2、n the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice covers the laboratory preparation ofchemically grouted soil specimens for
3、 use in laboratory tests todetermine engineering parameters.NOTE1This practice may not be applicable to grout mixtures with geltimes shorter than the time required to saturate the specimen with grout.1.2 The specimens are intended for both strength andmodulus determination in unconfined and confined
4、 compres-sion testing.NOTE2Preparation methods for specimens to be used for otherpurposes are described in Test Methods D4219 and D5202.1.3 This practice requires the injection of grout into soilspecimens already fabricated to a desired density.1.4 All observed and calculated values shall conform to
5、 theguidelines for significant digits and rounding established inPractice D6026.1.4.1 The method used to specify how data are collected,calculated,or recorded in this standard is not directly related tothe accuracy to which the data can be applied in design or otheruses,or both.How one applies the r
6、esults obtained using thisstandard is beyond its scope.1.5 The values stated in either SI units or inch-pound unitspresented in brackets are to be regarded separately asstandard.The values stated in each system may not be exactequivalents;therefore,each system shall be used independentlyof the other
7、.Combining values from the two systems mayresult in non-conformance with the standard.1.5.1 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(weight),while the unit for massis slugs.The slug unit is not give
8、n,unless dynamic(F=ma)calculations are involved.1.6 This practice offers a set of instructions for performingone or more specific operations.This document cannot replaceeducation or experience and should be used in conjunction withprofessional judgment.Not all aspects of this practice may beapplicab
9、le in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“Standard”in thetitle of this
10、document means only that the document has beenapproved through the ASTM consensus process.1.7 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
11、and determine the applica-bility of regulatory requirements prior to use.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering
12、 Design and ConstructionD4219 Test Method for Unconfined Compressive StrengthIndex of Chemical-Grouted SoilsD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Standard Masses for Use in Soil,Rock,andConstruction Materials TestingD5202 Test Method for Determining Triaxial CompressionCr
13、eep Strength of Chemical Grouted SoilsD6026 Practice for Using Significant Digits in GeotechnicalData3.Terminology3.1 Definitions:3.1.1 For definitions of technical terms in this standard,refer to Terminology D653.1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is
14、the direct responsibility of Subcommittee D18.15 on Stabilization WithAdmixtures.Current edition approved Oct.1,2009.Published October 2009.Originallyapproved in 1984.Last previous edition approved in 2004 as D4320 04.DOI:10.1520/D4320_D4320M-09.2For referenced ASTM standards,visit the ASTM website,
15、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 B
16、ox C700,West Conshohocken,PA 19428-2959.United States1 4.Significance and Use4.1 The purpose of this practice is to prepare specimens ofchemically grouted soils for testing in unconfined or triaxialcompression.NOTE3The 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 Practice D3740 are generally considered capable of competentand objective testing/
