ASTM_D_3551_-_08.pdf

Designation:D355108Standard Practice forLaboratory Preparation of Soil-Lime Mixtures UsingMechanical Mixer1This standard is issued under the fixed designation D3551;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.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This practice covers the laboratory preparation of soil-lime mixtures for use in determining the effects of lime on soilproperties(plasticity,strength,moisture-density relations,etc.)and the design of mixtures for construction.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 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.1.4 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 judgement.Not all aspects of this practicemay be applicable in all circumstances.This ASTM standard isnot intended to represent or replace the standard of care bywhich the adequacy of a given professional service must bejudged,nor should this document be applied without consid-eration of a projects many unique aspects.The word“Stan-dard”in the title of this document means only that thedocument has been approved the ASTM consensus process.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD2216 Test Methods for Laboratory Determination of Water(Moisture)Content of Soil and Rock by MassD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and Construction3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this practice,refer toTerminology D653.4.Significance and Use4.1 This practice standardizes the preparation of soil-limemixtures for laboratory testing by engineers and researchersinterested in determining properties of soil when stabilizedwith lime.In this method,mention is made of the mellowingperiod,but no specific recommendations are made because themellowing period to be used in testing depends upon eachspecific use.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 Practice D3740 are generally considered capable of competentand objective testing/sampling/inspection,and the like.Users of thisstandard are cautioned that compliance with Practice D3740 does not initself assure reliable results.Reliable results depend on many factors;Practice D3740 provides a means of evaluating some of those factors.5.Apparatus5.1 Mechanical Mixer,capable of producing uniform andhomogeneous mixtures of soil,lime,and water.5.2 Spatulas,Trowels,Scoops,etc.,as appropriate for use intransferring soil and lime to the mixer and for scraping andcleaning the bowl and all other parts of the mixer.5.3 BalanceA balance or scale capable of weighing atleast 1000 g to the nearest 1 g,for use in weighing soil,lime,and water.6.Mixture Preparation6.1 Soil for mixture preparation should be in an air-dried oroven-dried condition unless there is reason to believe thatair-drying or oven-drying may detrimentally affect the results(Note 2).In this case,the soil should be cured at or near its final1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.15 on Stabilization WithAdmixtures.Current edition approved July 1,2008.Published July 2008.Originally approvedin 1976.Last previous edition approved in 2002 as D3551 02.DOI:10.1520/D3551-08.2For 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 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 moisture content for a predetermined time period.The size ofthe sample and the sample preparation shall be dictated by thetest requirements for which the sample is prepared.NOTE2A 24-h period of air drying is typical.6.2 Determine the hygroscopic water content of the air-dried soil in accordance with Method D2216.Weigh out anamount of the soil sufficient to provide the weight of oven-dr