コンシステンシー限界に関する一考察

概要

論文の詳細を見る
The determination of consistency limits is an important part of classification tests. In particular, the liquid and the plastic limits and the plasticity index of cohesive soils give a useful indication of their general characteristics. The consistency limits - the liquid, the plastic, and the shrinkage limits-mark the transitions among the liquid, the plastic, the semi-solid, and the solid conditions respectively. As these changes of state are not sharply defined, it is necessary to specify standard tests by using appropriate definitions. At present, these tests of determining the consistency limits of soils has been conducted for many years by using Casagrande's apparatus. These apparatus were desinged on the basis of Atterberg's method by Casagrande. But the liquid limit has the following defects compared with two others among three limits that judie the consistency limits -the method of the test itself a controversial point. It easily permits personal differences to enter testing and on. The authers conducted the liqid and the plastic limit test of many choesive soils by Casagrande's apparatus and by cone-penetrometer. The purpose of this paper is to discuss the precision of between these two tests.
岐阜工業高等専門学校の論文
1990-03-10