ASTM D2940/D2940M - 15 - Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports

ASTM D2940/D2940M - 15

Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports

Status : Current   Published : June 2015

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PDF

Format
HARDCOPY



1.1 This specification covers quality-controlled graded aggregates that, when hauled to and properly spread and compacted on a prepared grade to appropriate density standards, may be expected to provide adequate stability and load support for use as highway or airport bases or subbases.

Note 1:  The engineer is cautioned to provide appropriate construction specifications to ensure compaction to an extent that further densification from traffic loadings on the completed pavement will be insignificant. The method suggested is to require compaction on a firm foundation of a short control strip of the material at a suitable moisture content, by means of vibratory or other proven effective rollers or tampers, until no further increase in density results. Compaction requirements should ensure that an average density of certain appropriate percentages of the control strip maximum density be achieved on the balance of the job; for base courses, 98% is suggested as the minimum average requirement.

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.4  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.




Standard NumberASTM D2940/D2940M - 15
TitleStandard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
StatusCurrent
Publication Date01 June 2015
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Aggregate, Base course, Subbase, Coarse aggregate, Fine aggregate
ICS93.080.10
PublisherASTM
FormatA4
DeliveryYes
Pages3
File Size68 KB
Price£36.00


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