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AASHTO - M 145

Standard Specification for Classification of Soils and Soil–Aggregate Mixtures for Highway Construction Purposes

active, Most Current
Organization: AASHTO
Publication Date: 1 January 1991
Status: active
Page Count: 10
scope:

This recommended practice describes a procedure for classifying soils into seven groups based on laboratory determination of particle size distribution, liquid limit, and plasticity index. Evaluation of soils within each group is made by means of a "group index," which is a value calculated from an empirical formula. The group classification, including group index, should be useful in determining the relative quality of the soil material for use in earthwork structures, particularly embankments, subgrades, subbases, and bases. However, for the detailed design of important structures, additional data concerning strength or performance characteristics of the soil under field conditions will usually be required.

The values stated in SI units are to be regarded as the standard.

Document History

M 145
January 1, 1991
Standard Specification for Classification of Soils and Soil–Aggregate Mixtures for Highway Construction Purposes
This recommended practice describes a procedure for classifying soils into seven groups based on laboratory determination of particle size distribution, liquid limit, and plasticity index. Evaluation...
January 1, 1991
Standard Specification for Classification of Soils and Soil–Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.
January 1, 1991
Standard Specifications for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
This recommended practice describes a procedure for classifying soils into seven groups based on laboratory determination of particle-size distribution, liquid limit, and plasticity index. Evaluation...
January 1, 1991
Recommended Practice for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.
January 1, 1991
Recommended Practice for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.
January 1, 1991
Standard Specifications for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.
January 1, 1991
Standard Specification for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
This recommended practice describes a procedure for classifying soils into seven groups based on laboratory determination of particle size distribution, liquid limit, and plasticity index. Evaluation...
January 1, 1991
Recommended Practice for the Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.
January 1, 1991
Standard Specification for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
This recommended practice describes a procedure for classifying soils into seven groups based on laboratory determination of particle-size distribution, liquid limit, and plasticity index. Evaluation...
January 1, 1991
Recommended Practice for Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes
A description is not available for this item.

References

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