ASTM D2940/D2940M-20
Standard Specification for Graded Aggregate Material for Bases or Subbases for Highways or Airports

Standard No.

ASTM D2940/D2940M-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D2940/D2940M-20

Scope

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 nonconformance 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D2940/D2940M-20 Referenced Document

• ASTM C117 Standard Test Method for Materials Finer than 75-181m (No. 200) Sieve in Mineral Aggregates by Washing
• ASTM C136/C136M Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates
• ASTM D2419 Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate
• ASTM D4318 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils
• ASTM D4792/D4792M Standard Test Method for Potential Expansion of Aggregates from Hydration Reactions*， 2024-04-22 Update
• ASTM D5821 Standard Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
• ASTM D75/D75M Standard Practice for Sampling Aggregates
• ASTM D7928 Standard Test Method for Particle-Size Distribution (Gradation) of Fine-Grained Soils Using the Sedimentation (Hydrometer) Analysis*， 2021-05-01 Update
• ASTM D8 Standard Terminology Relating to Materials for Roads and Pavements
• ASTM E105 Standard Practice for Probability Sampling Of Materials*， 2024-04-22 Update
• ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process

ASTM D2940/D2940M-20 history

• 2020 ASTM D2940/D2940M-20 Standard Specification for Graded Aggregate Material for Bases or Subbases for Highways or Airports
• 2015 ASTM D2940/D2940M-15 Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
• 2009 ASTM D2940/D2940M-09 Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
• 2003 ASTM D2940-03 Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports
• 1998 ASTM D2940-98 Standard Specification for Graded Aggregate Material For Bases or Subbases for Highways or Airports