PDF Icesi Finance ASTM D1883 PDF

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

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Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. 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.

Consequently, more trials may be required for these materials to establish a reliable CBR.

Agencies which meet the criteria of Practice D are generally considered capable of competent and objective testing. Density is mass per unit volume whereas unit weight is force per unit volume. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

It is scientifically undesirable to combine the use of two separate sets of inchpound units within a single standard. The SI units given in parentheses are mathematical conversions, e1883 are provided for information purposes only and are not considered standard.

Request Quote Client Login. The CBR value obtained in this test forms an integral part of several flexible pavement design methods. Link to Active This link will always route to the current Active version of the standard.

While f1883 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. The precision of this test method is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used.

The dry s1883 weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D Referenced Documents purchase separately The documents listed below are referenced within the subject standard d18883 are not provided as part of the standard.

ASTM D Standard

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.

Density is mass per unit volume whereas unit weight is force per unit volume. 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. Reporting of test results in units other than inch-pound units shall not be regarded as nonconformance with this test method.

As directed by the client, self-cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured. 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 adtm than the original material.

In this system, the pound lbf represents a unit of force weightwhile the unit for mass is slugs. California bearing ratio, pavement subgrade, subgrade, pavement subbase, subbase, pavement base course, base course, pavement design, flexible pavements, bearing ratio, CBR. 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 Axtm or D As directed by the engineer, self cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured. Consequently, more trials satm be required for these materials to establish a reliable CBR. Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.

The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. The CBR value obtained in this test forms an integral part of several flexible pavement design methods. This standard does not purport to address all of the safety problems, if any, associated with its use.

r1883 After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. 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. 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.

It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. Active view current version of standard. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.

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Active view current version of 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. 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.

The SI equivalents shown in parentheses may be approximate. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both.

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 v1883 results of tests using this procedure. Therefore, the standard unit for mass in this standard is either kilogram kg or gram gor both.

Reporting of test results in units other than inch-pound units shall not be regarded as nonconformance with this test method. Link to Active This link will always route to the current Active version of the standard.