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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The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. Consequently, more trials may be required for these materials to establish a reliable CBR. As the voice of astmm U. For Individuals with needing special assistance for disabilities or limited English proficiency Please contact our Title VI specialist at The CBR value obtained in this test forms an integral part of several flexible pavement design methods.

Density is mass per unit volume satm unit weight is force per unit volume.

Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results. Consequently, more trials may be required for these materials to establish a reliable CBR. Need more than one copy?

ASTM D1883

Please first log in with a verified email before subscribing to alerts. Agencies which meet the criteria of Practice D are generally considered capable of competent and objective testing. Consequently, more trials may be required for these materials to establish a reliable CBR. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard.

Note 1The agency performing this test can be evaluated in accordance with Practice D This standard is not included in any packages. The CBR value obtained in this test forms an integral part of several flexible pavement design methods. In this standard, density is given only in SI units.

ASTM D Standard

Standards Subsctiption may be the perfect solution. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D While traditionally this method of specimen preparation has been used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different strength properties than the original material.

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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. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Active view current version of standard.

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.

Add to Alert PDF. For applications where the effect of compaction water content on CBR is unknown or where it is desired to account for its effect, the CBR is determined for a range of water content, usually the range of water content permitted for sstm compaction by using agencys field compaction specification.

California Bearing Ratio Load Frames, CBR, ASTM D

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Density is mass per unit volume whereas unit weight is force per unit volume. It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard.

Historical Version f1883 – view previous versions of standard. This standard is also available to be included in Standards Subscriptions.

While traditionally this method of specimen preparation has been used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different strength properties than the original material. Proceed to Checkout Continue Shopping. For applications where the effect of compaction water content of CBR is ast, 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.

Consequently, more trials may be required for these materials to establish a reliable CBR. Active view current version of standard. Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both.

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After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Not withstanding statements on precision and bias contained in this Standard: However, a large experience base has developed using this 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.

You may delete a document from your Alert Profile at any time. We have no amendments or corrections for this standard. Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. As directed by the client, self-cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured.

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While traditionally this method of specimen preparation has been used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different strength properties than the original material. Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both. In addition they are representative of the significant digits that generally should be retained.

The dry unit weight specified is normally the minimum ashm compaction aetm by the asrm agencys field compaction specification. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. In addition they are representative of the significant digits that generally should be retained.

Your Alert Profile lists the documents that will be monitored. While traditionally this method of specimen preparation has x1883 used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different strength properties than the original material.