1、Designation:D776518aStandard Practice forUse of Foundry Sand in Structural Fill and Embankments1This standard is issued under the fixed designation D7765;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber 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 practice covers methods to use foundry sand asembankment and structural fill.1.2 This practice includes recommended construction(Sec-tio
3、n 5),compaction control(Section 6),and freeze-thawdurability(Section 7)practices.1.3 The engineer should be aware that foundry sand is aby-product of metal casting industries.Various local,state/provincial/regional,or national/federal environmental laws andregulations may apply if foundry sand is us
4、ed as an alternativeembankment or fill material.It is advised that foundry sandusers contact appropriate environmental regulators to deter-mine what requirements or limitations may exist.1.4 This standard primarily applies to green foundry sandand also generally to chemically bonded foundry sand.1.5
5、 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 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-priat
6、e safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.7 This practice offers a set of instructions for performingone or more specific operations.This document cannot replaceeducation or experience and should be used in conjunction withp
7、rofessional judgment.Not all aspects of this guide may beapplicable 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 pr
8、ojects many unique aspects.The word“Standard”in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the De
9、cision 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:2C837 Test Method for Methylene Blue Index of ClayD653 Terminology Relating to Soil,
10、Rock,and ContainedFluidsD698 Test Methods for Laboratory Compaction Character-istics of Soil Using Standard Effort(12,400 ft-lbf/ft3(600kN-m/m3)D1556 Test Method for Density and Unit Weight of Soil inPlace by Sand-Cone MethodD1557 Test Methods for Laboratory Compaction Character-istics of Soil Using
11、 Modified Effort(56,000 ft-lbf/ft3(2,700 kN-m/m3)D1883 Test Method for California Bearing Ratio(CBR)ofLaboratory-Compacted SoilsD2216 Test Methods for Laboratory Determination of Water(Moisture)Content of Soil and Rock by MassD2974 Test Methods for Moisture,Ash,and Organic Matterof Peat and Other Or
12、ganic SoilsD4327 Test Method for Anions in Water by Suppressed IonChromatographyD5080 Test Method for Rapid Determination of PercentCompactionD5918 Test Methods for Frost Heave and Thaw WeakeningSusceptibility of SoilsD6026 Practice for Using Significant Digits in GeotechnicalDataD6938 Test Methods
13、for In-Place Density and Water Contentof Soil and Soil-Aggregate by Nuclear Methods(ShallowDepth)G51 Test Method for Measuring pH of Soil for Use inCorrosion TestingG187 Test Method for Measurement of Soil ResistivityUsing the Two-Electrode Soil Box Method1This practice is under the jurisdiction of
14、ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.14 on Geotechnics ofSustainable Construction.Current edition approved May 1,2018.Published May 2018.Originallyapproved in 2018.Last previous edition approved in 2018 as D776518.DOI:10.1520/D7765-18A.2For referenc
15、ed 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
16、 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 3.Terminology3.1 Definitions:3.1.1 For definitions of common technical terms in thisstanda