An alternative test method for assessing consistency limits
2007
Experiments were conducted to assess simpler alternatives for estimating the Atterberg (liquid and plastic) limits as needed during military field reconnaissance and combat engineering exercises. Eight non-ASTM test methods were compared to the Casagrande cup liquid limit method and ten non-ASTM alternatives were compared to the rolled-bead plastic limit method for three cohesive soils having wide plasticity index ranges. Only one non-ASTM method yielded results within 10 % of the ASTM liquid and plastic limit values. This unique test method was created from a unified (dual-weight) fall cone apparatus and procedure to enable simple assessment of soil consistency limits.
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