Index properties and critical state soil mechanics

One of the areas in which the framework of critical state soil mechanics finds an important application is in the interpretation and assessment of the results of the standard index property tests. It is shown that there exist simple approximate relationships between plasticity and compressibility, between liquidity and strength, and between liquidity and overburden pressure and overconsolidation ratio. The existence of these relationships permits the internal consistency of site investigation information to be rapidly assessed.