ASTM_D_1558_-_10.pdf

Designation:D155810Standard Test Method forMoisture Content Penetration Resistance Relationships ofFine-Grained Soils1This standard is issued under the fixed designation D1558;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 test method covers establishing the moisture-penetration resistance relationships of fine-grained soils asdetermined by the soil penetrometer.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.4 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.2.Referenced Documents2.1 ASTM Standards:2C670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD653 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)D2216 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 ConstructionD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Standard Masses for Use in Soil,Rock,andConstruction Materials TestingD6026 Practice for Using Significant Digits in GeotechnicalDataE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 Definitions:3.1.1 penetration resistance curve(proctor penetrationcurve)the curve showing the relationship between the pen-etration resistance and the water content.3.1.2 All other terms and definitions are in accordance withTerminology D653.4.Significance and Use4.1 This test method is used with Methods A and B of TestMethods D698 or D1557 to develop relationships betweenmoisture content,density,and penetration resistance.Theserelationships are used with a previously prepared family ofmoisture-penetration curves as a rapid field test to determinethe approximate amount of moisture in the soil.NOTE1When a penetration-resistance measurement of material inplace is compared at a given moisture content with penetration-densitycurves prepared at a specified compactive effort,an approximate check ofcompaction(density)may be obtained.4.2 Penetration resistance determinations are not reliable forvery dry molded soil specimens or very granular soils.NOTE2The quality of the result produced by this standard isdependent on the competence of the personnel performing it and thesuitability of the equipment and the facilities used.Agencies that meet thecriteria of Practice D3740 are generally considered capable of competentand objective testing.Users of this test method are cautioned thatcompliance with Practice D3740 does not in itself assure reliable testing.Reliable testing depends on many factors;Practice D3740 provides ameans of evaluating some of those factors.5.Apparatus5.1 Moisture-Density Apparatus,conforming to the require-ments prescribed in Test Methods D698.1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.08 on Special andConstruction Control Tests.Current edition approved Oct.1,2010.Published November 2010.Originallyapproved in 1958.Last previous edition approved in 2004 as D1558 99(2004)1.DOI:10.1520/D1558-10.2For 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 5.2 Soil PenetrometerA soil penetrometer(see Fig.1)consisting of a special spring dynamometer with pressure-indicating scale on the stem of the handle.The pressure scaleshall be graduated to 90 lbf in 2-lbf divisions with a lineencircling the stem at each 10-lbf interval,or graduated to 400N in 8.9 N divisions with a line encircling the stem at each 49N interval.A sliding ring on the stem shall indic