This standard is issued under the fixed designation D; the number 1 This test method is under the jurisdiction of ASTM Committee D18 on Soil and. This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D on Soil and Rock. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Test Method for CBR (California Bearing Ratio) of Laboratory- Compacted.

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Link to Active This link will always route to the current Active version of the standard. This standard is also available to be included in Standards Subscriptions. Consequently, more trials may be required for these materials to establish a reliable CBR.

It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard. This standard is not included in any packages. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not adtm standard. The criteria for test specimen preparation of self cementing and other materials which gain strength with time must be based on a geotechnical engineering evaluation.

The CBR value obtained in this test forms an integral part of several flexible pavement design methods. As the voice of the U. In this standard, density is given only in SI units.

ASTM D Standard

If the document is revised or amended, you will be notified by email. However, a large experience database has been developed using this asrm method for materials for which the gradation has been modified, and satisfactory design methods are in use based on the results of tests using this procedure. Please first verify your email before subscribing to alerts.

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The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Not withstanding statements on precision and bias contained in this Standard: In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs.

Reporting of test results in units other than inch-pound units shall not be regarded as nonconformance with this test method. However, a large experience database has been developed using r1883 test method for materials for which the gradation has been modified, and satisfactory design methods are in use based on the results of tests using this procedure.

California bearing ratio, pavement subgrade, subgrade, pavement subbase, subbase, pavement base course, base course, pavement design, flexible pavements, bearing ratio, CBR.

The quality of the results produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used.

Already Subscribed to this document. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

Standards Subsctiption may d183 the perfect solution. Active view current version of standard. It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard. Need more than one copy? For applications where the effect of compaction water content of CBR is small, such a cohesionless, coarse-grained materials, or where an allowance is made for the effect of differing compaction water contents in the design procedure, the CBR may be determined at the optimum water content of a specified compaction effort.

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Please first log in with a verified email before subscribing to alerts. Consequently, more trials may be required for these asgm to establish a reliable CBR. In this standard, density is given only in SI units. 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.

The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

California Bearing Ratio Load Frames, CBR, ASTM D

The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D This test method is used to evaluate the potential strength of subgrade, subbase, and base course material, including recycled materials for use in road and airfield pavements. Users of this method are cautioned that compliance with Practice D does not in itself assure reliable testing.

For more information, contact: In addition they are representative of the significant digits that generally should be retained. Referenced Documents purchase separately The documents d188 below are referenced within the subject standard but are not provided as part of the standard.

Last modified: April 24, 2020