1、Designation:D627008(Reapproved 2012)Standard Practice forUse of Scrap Tires in Civil Engineering Applications1This standard is issued under the fixed designation D6270;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last
2、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 practice provides guidance for testing the physicalproperties,design considerations,construction practices,andleachate gene
3、ration potential of processed or whole scrap tiresin lieu of conventional civil engineering materials,such asstone,gravel,soil,sand,lightweight aggregate,or other fillmaterials.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.
4、2.Referenced Documents2.1 ASTM Standards:2C127 Test Method for Density,Relative Density(SpecificGravity),and Absorption of Coarse AggregateC136 Test Method for Sieve Analysis of Fine and CoarseAggregatesD698 Test Methods for Laboratory Compaction Character-istics of Soil Using Standard Effort(12 400
5、 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)D2434 Test Method for Permeability of Granular Soils(Constant Head)D3080 Test Method for Direct Shear Test of Soils UnderConsolidated Drained ConditionsD
6、4253 Test Methods for Maximum Index Density and UnitWeight of Soils Using a Vibratory TableD2974 Test Methods for Moisture,Ash,and Organic Matterof Peat and Other Organic Soils2.2 American Association of State Highway and Transpor-tation Offcials Standard:T 274 Standard Method of Test for Resilient
7、Modulus ofSubgrade Soils3M 288 Standard Specification for Geotextiles42.3 U.S.Environmental Protection Agency Standard:Method 1311 Toxicity Characteristics Leaching Procedure53.Terminology3.1 Definitions:3.1.1 baling,na method of volume reduction wherebytires are compressed into bales.3.1.2 bead,nth
8、e anchoring part of the tire which is shapedto fit the rim and is constructed of bead wire wrapped by theplies.3.1.3 bead wire,na high tensile steel wire surrounded byrubber,which forms the bead of a tire that provides a firmcontact to the rim.3.1.4 belt wire,na brass plated high tensile steel wire
9、cordused in steel belts.3.1.5 buffng rubber,nvulcanized rubber usually obtainedfrom a worn or used tire in the process of removing the oldtread in preparation for retreading.3.1.6 carcass,nsee casing.3.1.7 casing,nthe basic tire structure excluding the tread(Syn.carcass).3.1.8 chipped tire,nsee tire
10、 chip.3.1.9 chopped tire,na scrap tire that is cut into relativelylarge pieces of unspecified dimensions.3.1.10 granulated rubber,nparticulate rubber composedof mainly non-spherical particles that span a broad range of1This practice is under the jurisdiction of ASTM Committee D34 on WasteManagement
11、and is the direct responsibility of Subcommittee D34.03 on Treatment,Recovery and Reuse.Current edition approved Sept.1,2012.Published December 2012.Originallyapproved in 1998.Last previous edition approved in 2008 as D6270 08.DOI:10.1520/D6270-08R12.2For referenced ASTM standards,visit the ASTM web
12、site,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.3Standard Specifications for Transportation Materials and Methods of Samplingand Testing,Part II:Methods of Samplin
13、g and Testing,American Association ofState Highway and Transportation Officials,Washington,DC.4Standard Specifications for Transportation Materials and Methods of Samplingand Testing,Part I:Specifications,American Association of State Highway andTransportation Officials,Washington,DC.5Test Methods f
14、or Evaluating Solid Waste:Physical/Chemical Methods,3rded.,Report No.EPA 530/SW-846,U.S.Environmental Protection Agency,Washington,DC.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 maximum particle dimension,from below 425 m(40 mesh)to12
15、 mm(also refer to particulate rubber).63.1.11 ground rubber,nparticulate rubber composed ofmainly non-spherical particles that span a range of maximumparticle dimensions,from below 425 m(40 mesh)to 2 mm(also refer to particulate rubber).63.1.12 mineral soil,nsoil containing less than 5%organicmatter
16、 as determined by a loss on ignition test(D2974).3.1.13 nominal size,nthe average size product that com-prises 50%or more of the throughput in a scrap tire processingoperation;scrap tire processing operations generate productsabove and below the nominal size.3.1.14 particulate rubber,nraw,uncured,compounded orvulcanized rubber that has been transformed by means of amechanical size reduction process into a collection of particles,with or without a coating of a partitioning agent to preventagglome
