ASTM_D_7762_-_11.pdf

Designation:D776211Standard 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 guide covers procedures for the design of stabili-zation 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 guide are applicable to thecharacterization of mechanical properties of in situ mixedself-cementing fly ash stabilized materials.There are otherrelated fly ash stabilization standards.Practice D5239 can beused to characterize the general types of fly ash for use in soilstabilization.Specification C593 can be used to evaluate theperformance of fly ash and other pozzolans that require limesoil stabilization.Guide E2277 can be used to characterizeproperties of fly ash and bottom ash in structural fills andrelated design and construction 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 and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This document cannot replace education orexperience and should be used in conjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professional service must be judged,nor should thisdocument be applied without consideration of a projects manyunique aspects.The word“Standard”in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.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 AggregatesD420 Guide to Site Characterization for Engineering Designand Construction Purposes(Withdrawn 2011)3D653 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 CBR(California Bearing Ratio)ofLaboratory-Compacted SoilsD4609 Guide for Evaluating Effectiveness ofAdmixtures forSoil StabilizationD5102 Test Methods for Unconfined Compressive Strengthof Compacted Soil-Lime MixturesD5239 Practice for Characterizing Fly Ash for Use in SoilStabilizationD5759 Guide for Characterization of Coal Fly Ash andClean Coal Combustion Fly Ash for Potential UsesD5918 Test Methods for Frost Heave and Thaw WeakeningSusceptibility of SoilsE2201 Terminology for Coal Combustion Products(With-drawn 2011)31This 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 Dec.1,2011.Published January 2012.DOI:10.1520/D7762-112For 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 States1 E2277 Guide for Design and Construction of Coal AshStructural Fills(Withdrawn 2012)32.2 AASHTO(American Association of State Highway andTransportation Offcials)Standard:4AASHTO T 307 Standard Method of Test for Determiningthe Resilient Modulus of Soils and Aggregate Materials2.3 TRB(Transportation Research Board)Standard:5NCHRP 1-28A Harmonized Test Method for LaboratoryDetermination of Resilient Modulus for Flexible Pave-ment Design2.4 ACAA(American Coal Ash Association)Soil Stabiliza-tion