AASHTO M 145:1991(R2021)
Superseded
View Superseded by
Classification of Soils and Soil–Aggregate Mixtures for Highway Construction Purposes
Hardcopy , PDF
English
01-01-2021
08-29-2026
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.
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
American Association of State Highway and Transportation Officials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| AASHTO R 13:2022(R2026) | Conducting Geotechnical Subsurface Investigations |
| ACI PRC 325.12:2026 | Design of Jointed Concrete Pavements for Streets and Local Roads—Guide |
| AASHTO T 89:2022 | Standard Method of Test for Determining the Liquid Limit of Soils |
| AASHTO T 27:2024 | Standard Method of Test for Sieve Analysis of Fine and Coarse Aggregates |
| AASHTO T 11:2024 | Standard Method of Test for Materials Finer Than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing |
| AASHTO R 58 : 2011 | PRACTICE FOR DRY PREPARATION OF DISTURBED SOIL AND SOIL-AGGREGATE SAMPLES FOR TEST |
| AASHTO T 88 : 2022 | |
| AASHTO T 90:2022 | Method of Test for Determining the Plastic Limit and Plasticity Index of Soils |
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