ASTM D6270-08(2012)
(Practice)Standard Practice for Use of Scrap Tires in Civil Engineering Applications
Standard Practice for Use of Scrap Tires in Civil Engineering Applications
SIGNIFICANCE AND USE
This practice is intended for use of scrap tires including: tire derived aggregate (TDA) comprised of pieces of scrap tires, TDA/soil mixtures, tire sidewalls, and whole scrap tires in civil engineering applications. This includes use of TDA and TDA/soil mixtures as lightweight embankment fill, lightweight retaining wall backfill, drainage layers for roads, landfills and other applications, thermal insulation to limit frost penetration beneath roads, insulating backfill to limit heat loss from buildings, vibration damping layers for rail lines, and replacement for soil or rock in other fill applications. Use of whole scrap tires and tire sidewalls includes construction of retaining walls, drainage culverts, road-base reinforcement, and erosion protection, as well as use as fill when whole tires have been compressed into bales. It is the responsibility of the design engineer to determine the appropriateness of using scrap tires in a particular application and to select applicable tests and specifications to facilitate construction and environmental protection. This practice is intended to encourage wider utilization of scrap tires in civil engineering applications.
Three TDA fills with thicknesses in excess of 7 m have experienced a serious heating reaction. However, more than 100 fills with a thickness less than 3 m have been constructed with no evidence of a deleterious heating reaction (1). Guidelines have been developed to minimize internal heating of TDA fills (2) as discussed in 6.11. The guidelines are applicable to fills less than 3 m thick. Thus, this practice should be applied only to TDA fills less than 3 m thick.
SCOPE
1.1 This practice provides guidance for testing the physical properties, design considerations, construction practices, and leachate generation potential of processed or whole scrap tires in lieu of conventional civil engineering materials, such as stone, gravel, soil, sand, lightweight aggregate, or other fill materials.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
General Information
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Standards Content (Sample)
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Designation: D6270 − 08 (Reapproved 2012)
Standard Practice for
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Use of Scrap Tires in Civil Engineering Applications
This standard is issued under the fixed designation D6270; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 American Association of State Highway and Transpor-
tation Offıcials Standard:
1.1 This practice provides guidance for testing the physical
T274Standard Method of Test for Resilient Modulus of
properties, design considerations, construction practices, and 3
Subgrade Soils
leachate generation potential of processed or whole scrap tires 4
M288Standard Specification for Geotextiles
in lieu of conventional civil engineering materials, such as
2.3 U.S. Environmental Protection Agency Standard:
stone, gravel, soil, sand, lightweight aggregate, or other fill
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Method 1311Toxicity Characteristics Leaching Procedure
materials.
1.2 The values stated in SI units are to be regarded as 3. Terminology
standard. No other units of measurement are included in this
3.1 Definitions:
standard.
3.1.1 baling, n—a method of volume reduction whereby
tires are compressed into bales.
2. Referenced Documents
3.1.2 bead, n—theanchoringpartofthetirewhichisshaped
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2.1 ASTM Standards: to fit the rim and is constructed of bead wire wrapped by the
plies.
C127Test Method for Density, Relative Density (Specific
Gravity), and Absorption of Coarse Aggregate
3.1.3 bead wire, n—a high tensile steel wire surrounded by
C136Test Method for Sieve Analysis of Fine and Coarse
rubber, which forms the bead of a tire that provides a firm
Aggregates
contact to the rim.
D698Test Methods for Laboratory Compaction Character-
3.1.4 belt wire, n—abrassplatedhightensilesteelwirecord
3
istics of Soil Using Standard Effort (12 400 ft-lbf/ft (600
used in steel belts.
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kN-m/m ))
3.1.5 buffıng rubber, n—vulcanized rubber usually obtained
D1557Test Methods for Laboratory Compaction Character-
3 from a worn or used tire in the process of removing the old
istics of Soil Using Modified Effort (56,000 ft-lbf/ft
tread in preparation for retreading.
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(2,700 kN-m/m ))
3.1.6 carcass, n—see casing.
D2434Test Method for Permeability of Granular Soils
(Constant Head)
3.1.7 casing, n—the basic tire structure excluding the tread
D3080Test Method for Direct Shear Test of Soils Under (Syn. carcass).
Consolidated Drained Conditions
3.1.8 chipped tire, n—see tire chip.
D4253Test Methods for Maximum Index Density and Unit
3.1.9 chopped tire, n—a scrap tire that is cut into relatively
Weight of Soils Using a Vibratory Table
large pieces of unspecified dimensions.
D2974Test Methods for Moisture,Ash, and Organic Matter
3.1.10 granulated rubber, n—particulate rubber composed
of Peat and Other Organic Soils
of mainly non-spherical particles that span a broad range of
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This practice is under the jurisdiction of ASTM Committee D34 on Waste
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ManagementandisthedirectresponsibilityofSubcommitteeD34.03onTreatment, Standard Specifications for Transportation Materials and Methods of Sampling
Recovery and Reuse. and Testing, Part II: Methods of Sampling and Testing, American Association of
Current edition approved Sept. 1, 2012. Published December 2012. Originally State Highway and Transportation Officials, Washington, DC.
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approved in 1998. Last previous edition approved in 2008 as D6270–08. DOI: Standard Specifications for Transportation Materials and Methods of Sampling
10.1520/D6270-08R12. and Testing, Part I: Specifications, American Association of State Highway and
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Transportation Officials, Washington, DC.
5 rd
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Test Methods for Evaluating Solid Waste: Physical/Chemical Methods, 3 ed.,
Standards volume information, refer to the standard’s Document Summary page on Report No. EPA530/SW-846, U.S. Environmental ProtectionAgency, Washington,
the ASTM website. DC.
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D6270 − 08 (2012)
maximumparticledimension,frombelow425µm(40mesh)to 3.1.27 tire chips, n—pieces of scrap tires that have a basic
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12 mm (also refer to particulate rubber). geometrical shape and are generally between 12 and 50 mm in
size and have most of the wire removed (Syn. chipped tire).
3.1.11 ground rubber, n—particulate rubber composed of
mainly non-spherical particles that span a range of maximum 3.1.28 tire derived aggregate (TDA), n—pieces of scrap
particle dimensions, from b
...
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