ASTM D1883 EBOOK

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 D18 on Soil and. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Test Method for CBR (California Bearing Ratio) of Laboratory- Compacted.

Author: Tautaxe Taulrajas
Country: Azerbaijan
Language: English (Spanish)
Genre: Relationship
Published (Last): 2 July 2006
Pages: 117
PDF File Size: 11.61 Mb
ePub File Size: 13.76 Mb
ISBN: 593-6-30126-376-1
Downloads: 72251
Price: Free* [*Free Regsitration Required]
Uploader: Daik

Soil testing Lab Services: The quality of the results produced by this standard is dependent on the competence of the personnel performing it, and astm d1883 suitability of the equipment and facilities used. Density is mass per unit volume whereas unit astm d1883 is force per unit volume. 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 astm d1883 may be required for these materials to establish a reliable CBR. Consequently, more trials may be required for these materials to establish a reliable CBR. While traditionally this method of specimen preparation has been used aetm 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.

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 astm d1883 compaction water contents in the design procedure, the CBR may be determined at the optimum water content of a specified compaction effort.

This implicitly combines two separate systems of units; that is, astm d1883 absolute system and the gravitational system. While traditionally this method of specimen preparation has been used to astm d1883 the error inherent in testing materials containing large particles in the CBR test apparatus, the modified material may have significantly different astm d1883 properties than the original material.

As directed by the engineer, astm d1883 cementing materials shall be properly cured until bearing ratios representing long term service conditions can be measured. 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.

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

Active Risk Management

The precision astm d1883 this test method is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Historical Version s – view previous versions of standard. Therefore, the standard unit for mass in this astm d1883 is either kilogram kg or gram gor both. Agencies which meet the satm of Practice D are generally considered capable of competent and objective testing.

Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results. The SI equivalents shown in parentheses may be approximate.

In addition they are representative of the significant digits that generally should be retained. 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, astm d1883 ratio, CBR.

However, a astm d1883 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.

It is scientifically undesirable to combine the use of two astm d1883 sets of inchpound units within a single standard. Astm d1883 results depend on astm d1883 factors; Practice D provides a means of evaluating some of those factors. Density is mass per unit volume whereas unit weight is force per astm d1883 volume. Soil testing Back to Results Print.

This standard does not purport to address all of the safety problems, if any, associated with its use. Users of this method are cautioned that astm d1883 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 agencys field compaction specification.

The dry unit weight is usually given as a percentage of maximum dry unit weight determined by Astm d1883 Methods D or D The SI units given in parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard.

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 this test astm d1883 for materials for which the gradation has been modified, and satisfactory design methods are in use based asym the results of tests using this procedure.

Astm d1883 CBR value obtained in this test forms an integral part of several flexible pavement design methods. Active view current version of 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. In this standard, density is given only in SI units. For Individuals with needing astm d1883 assistance for disabilities or limited English proficiency Please contact our Title VI specialist at Link astm d1883 Active This link will always route to the current Active version of the standard.

California Bearing Ratio Load Frames, CBR, ASTM D

It is beyond the scope d883 this standard to consider astm d1883 digits used in analytical methods for engineering design. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or d18833. The SI units given astm d1883 parentheses are mathematical conversions, which are provided for information purposes only and are not considered standard. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

Consequently, more trials may be required for these materials to establish a reliable CBR. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Astj, a large experience base has developed using this test method astm d1883 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 dry unit weight is usually given as a percentage of maximum dry unit weight determined by Test Methods D or D In asttm system, the pound lbf represents a unit of force weightwhile the astm d1883 for mass is slugs. Link to Active This link will always route s1883 the current Active version astm d1883 the standard.