ASTM D1883 PDF

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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ASTM D1883

Request Quote Client Login. 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.

Consequently, more trials may be required for these materials to establish a reliable CBR. Historical Version s – view previous versions of standard. Consequently, more trials may be required for these materials to establish a reliable CBR. In this standard, density is given only in SI units.

However, a large experience database has been developed using this test method for materials for which the gradation has been modified, and satisfactory design methods are qstm use based on the results of tests using this procedure.

This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. For applications where the effect aastm 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.

California Bearing Ratio Load Frames, CBR, ASTM D

You can download awtm open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Already Subscribed to this document.

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Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. For applications where the effect of compaction water content on CBR is unknown atsm 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 asm for field compaction by using agencys field compaction specification.

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However, a large experience database has been 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. Active view current version of standard. The dry unit weight specified is normally the minimum percent compaction allowed by the using agencys field compaction specification.

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ASTM D Standard

The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Add to Alert PDF. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. 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.

In addition they are representative of the significant digits that generally should be retained. Link to Active This link will always route to the current Active version of the standard. You may delete a document from your Alert Profile at any time. As directed by the client, self-cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured.

Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both. The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard.

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Density is mass per unit volume whereas unit weight is force per unit volume. Reporting of test results in units other than inch-pound units shall not be regarded as nonconformance with this test method. It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard.

Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. California bearing ratio, pavement subgrade, subgrade, pavement subbase, subbase, pavement base course, base course, pavement design, flexible pavements, bearing ratio, CBR.

Consequently, more trials may be required for these materials to establish a reliable CBR. Reliable results depend on many factors; Practice D18833 provides a means of evaluating some of those factors. For more information, contact: Note 1The agency performing this test can be evaluated in accordance with Practice D 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.

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.

Active Risk Management

Soil testing Lab Services: 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. 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.

Need more than one copy? Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.