ASTM_D_6236_-_11.pdf

Designation:D623611Standard Guide forCoring and Logging Soil-Cement or Lime-Stabilized Soil1This standard is issued under the fixed designation D6236;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.Scope*1.1 This guide covers obtaining cores of soil-cement orlime-stabilized soil for use in determining compressivestrength,lift thickness and bond strength,and other physicalproperties.This guide is primarily for use in coring throughshallow(0.3 to 3 m(1 to 10 ft)thick)layers of cement orlime-stabilized soils containing particles 50 mm(2 in.)indiameter to the underlying foundation.NOTE1This guide could be used for some Class C self-cementing flyash materials,which may also stabilize soil.1.2 This guide does not cover material of less than 2100 kPa(300 psi)compressive strength such as cement-soil-bentonitemixtures or some controlled low strength materials(CLSM).1.3 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.4 The values stated in SI units are to be regarded as thestandard.Other values are examples or for information only.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.Specific precau-tionary statements are given in Section 8.1.6 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This guide cannot replace education orexperience and should be used in conjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This guide is not intended to represent orreplace the standard of care by which the adequacy of a givenprofessional service must be judged,nor should this guide beapplied without consideration of a projects many uniqueaspects.The word“Standard”in the title of this documentmeans only that the document has been approved through theASTM consensus process.1.7 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.2.Referenced Documents2.1 ASTM Standards:2C51 Terminology Relating to Lime and Limestone(as usedby the Industry)C219 Terminology Relating to Hydraulic CementD559 Test Methods for Wetting and Drying CompactedSoil-Cement Mixtures(Withdrawn 2012)3D560 Test Methods for Freezing and Thawing CompactedSoil-Cement Mixtures(Withdrawn 2012)3D653 Terminology Relating to Soil,Rock,and ContainedFluidsD1633 Test Methods for Compressive Strength of MoldedSoil-Cement CylindersD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4220 Practices for Preserving and Transporting SoilSamplesD4452 Practice for X-Ray Radiography of Soil SamplesD5079 Practices for Preserving and Transporting Rock CoreSamplesD5102 Test Methods for Unconfined Compressive Strengthof Compacted Soil-Lime MixturesD5607 Test Method for Performing Laboratory Direct ShearStrength Tests of Rock Specimens Under Constant Nor-mal ForceD6026 Practice for Using Significant Digits in GeotechnicalData3.Terminology3.1 Definitions:3.1.1 Refer to Terminology C51 for terms relating to lime.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 1998.Last previous edition approved in 2004 as D623698(2004).DOI:10.1520/D6236-11.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.*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 States1 3.1.2 Refer to Terminology C219 for terms relating tohydraulic cement.3.1.3 Refer to Terminology D653 for terms relating to soil.4.Summary of Guide4.1 Core samples of soil-cement or lime-stabilized soil witha core diameter of 75-or 100-mm(3-or 4-in.)are obtainedthrough the entire thickness of a stabilized soil section orfacing using a rotary drill equipped with a diamond coring bit.To minimize the possibility of breakage or other internalda