Specification M 145-91(2021) Standard specification for classification of soils and soil-aggregate mixtures for highway construction purposes
Publication Year
1991
Document Status
Current
Abstract
Recommended procedure for classifying soils into seven groups based on laboratory determination of particle-size distribution, liquid limit, and plasticity index.
Document History
Includes all amendments and changes through Reapproval Notice, 2021.
Publisher Information
American Association of State Highway and Transportation Officials
AASHTO is a non-profit association representing air, road, public, rail and water transportation departments in the 50 US states, the District of Columbia, and Puerto Rico to foster the development, operation, and maintenance of an integrated national transportation system.
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Washington, DC
AASHTO
USA
Website: www.transportation.org
Email: info@aashto.org
Tel: +1 202 624-5800
