ASTM_D_7762_-_18.pdf

Designation:D776218Standard Practice forDesign of Stabilization of Soil and Soil-Like Materials withSelf-Cementing Fly Ash1This standard is issued under the fixed designation D7762;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers procedures for the design of stabi-lization of soil and soil-like materials using self-cementing coalfly ash for roadway applications,treatment of expansivesubgrade or organic subgrade,and limiting settlement of fillsbelow buildings.The coal fly ash covered in this methodincludes self-cementing fly ashes described in SpecificationD5239.1.2 The testing and engineering practices for self-cementingcoal fly ash are similar to generally accepted practices for soilstabilization with fly ash and other pozzolans that require lime.1.3 The test methods in this practice are applicable to thecharacterization of mechanical properties of in situ mixedself-cementing fly ash stabilized materials.Follow PracticeD75 for sampling purposes.There are other related fly ashstabilization standards.Practice D5239 can be used to charac-terize the general types of fly ash for use in soil stabilization.Specification C593 can be used to evaluate the performance offly ash and other pozzolans that require lime soil stabilization.Guide E2277 can be used to characterize properties of fly ashand bottom ash in structural fills and related design andconstruction considerations.1.4 The standard units are the SI units,unless other units arespecified.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 regulatory limitations prior to use.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 conjunctionwith professional judgment.Not all aspects of this practice maybe applicable 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 document means only that the document has beenapproved through the ASTM consensus process.1.7 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 Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C593 Specification for Fly Ash and Other Pozzolans for UseWith Lime for Soil StabilizationC597 Test Method for Pulse Velocity Through ConcreteD75 Practice for Sampling AggregatesD653 Terminology Relating to Soil,Rock,and ContainedFluidsD698 Test Methods for Laboratory Compaction Character-istics of Soil Using Standard Effort(12,400 ft-lbf/ft3(600kN-m/m3)D1557 Test Methods for Laboratory Compaction Character-istics of Soil Using Modified Effort(56,000 ft-lbf/ft3(2,700 kN-m/m3)D1883 Test Method for California Bearing Ratio(CBR)ofLaboratory-Compacted SoilsD4609 Guide for Evaluating Effectiveness ofAdmixtures forSoil Stabilization(Withdrawn 2017)3D5102 Test Methods for Unconfined Compressive Strengthof Compacted Soil-Lime MixturesD5239 Practice for Characterizing Fly Ash for Use in SoilStabilizationD5918 Test Methods for Frost Heave and Thaw WeakeningSusceptibility of Soils1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.14 on Geotechnics ofSustainable Construction.Current edition approved Jan.1,2018.Published February 2018.Originallyapproved in 2011.Last previous edition approved in 2011 as D776211.DOI:10.1520/D7762-182For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright 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 International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 E220