Primary Studies on the Stickiness of Soils on the Agricultural Machinery (VI)

Critical Void Ratio for the Volcanic Light Soils during Shear

Abstract

To explain the mechanism of the stickiness of the volcanic light soils, Report (IV), regarding a unit of constitution as the aggregate from the result of my test, made a proporsal to applicate the conception of the critical void ratio of the sand. But it is regretful that my paper had not an experimental endorsement.
Having tested with the cylindrical compression apparatus, I got following result: the aggregated volcanic light soils, as well as sands, has the critical void ratio, of which value is about 1.9 when the lateral pressure is 0.3kg/cm².