1. Moisture-density relations of soils using a 4.54-kg (10-ib) rammer and a 457-mm (18-in.) drop;AASHTO T 180–97,2003
2. The California bearing ratio;AASHTO T 193-99,2003
3. Sieve Analysis of fine and coarse aggregates;AASHTO T 27-99,2012
4. Determining the plastic limit and plasticity index of soils;AASHTO T 90-00,2015
5. Agarwal KB, Ghanekar KD. Prediction of CBR from plasticity characteristics of soil. In: Proceeding of 2nd south-east asian conference on soil engineering, 11–15 June 1970. Singapore; 1970. p. 571–6.