ASTM D1883 PDF

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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. ASTM D Standard Test Method for CBR (California Bearing Ratio) of Laboratory Compacted Soil. Qty. Model, Description. 1, Choose One.

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The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Consequently, more trials may be required for these materials to establish a reliable CBR. 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.

Active view current version of standard. Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. For more information, contact: It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard.

In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. Consequently, more trials may be required for these materials to establish a reliable CBR.

The CBR value obtained in this test forms an integral part of several flexible pavement design methods. The SI equivalents shown in parentheses may be approximate. This implicitly combines two separate adtm of units; that is, the absolute system and the gravitational system. Agencies which meet the criteria of Practice D are generally considered capable of competent and objective testing.

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. The precision of this test method zstm dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used.

In ast, they are representative of the significant digits that generally should be retained. In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. 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 e1883 this procedure.

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Request Quote Client Login. 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. 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.

Note 1The agency performing this test can be evaluated in accordance with Practice D California bearing ratio, pavement subgrade, subgrade, pavement subbase, subbase, pavement base course, base course, pavement design, flexible pavements, bearing ratio, CBR.

Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors. As directed by the engineer, self cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured. In addition they are representative of the significant digits that generally should be retained.

As directed by the client, self-cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D For Individuals with needing special assistance for disabilities or limited English proficiency Please contact our Title VI specialist at Historical Version s – view previous versions of standard.

ASTM D Standard

However, a f1883 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.

Users of this method are cautioned that compliance with Practice D does not in itself assure reliable testing. The dry unit weight specified is normally the minimum percent compaction allowed by the using astmm field compaction specification. It asrm beyond the aztm of this standard to consider significant digits used in analytical methods for engineering design. Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.

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Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. Not withstanding statements on precision and bias contained in this 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.

In this standard, density is given only in SI units. The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Link to Active This link will always route to the current Active version of the standard.

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

Reporting of test results in units other d1838 inch-pound units shall not be regarded as nonconformance with this test method. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both. The CBR value obtained in this test forms an integral part of several flexible pavement design methods.

The SI units given in parentheses are mathematical conversions, which are provided for information purposes only sstm are not considered standard.

The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. However, a large experience database adtm 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.