Experimental consideration on compaction characteristics and particle crushing of soils

In order to understand the compaction characteristics and particle breakage for soil, a series of the experimental tests have been carried out for two Masado and silica sand. One of the Masado was sampled in Ube, and the other in Sondo, Incheon city, South Korean. X-ray diffraction, the mineral composition classification test, the single particle crushing test were conducted to understand the physical properties of Masado, especially the degree of weathering. (1) Sondo Masado contains 30% of the colored mineral. The rate of the colored mineral of the Ube Masado is as low as 9%. (2) Sondo Masado has lower average single particle crushing strength than that for Ube Masado. As comparing with Silica, single particle strength of Masado was lower, and the variation in particle strength for Masado was larger. (3) Although the density of Masado in the compaction test increased clearly with increasing particle breakage, the amount of particle breakage doesn’t control the degree of compaction (the density) for soil from the experimental evidence which Sondo masado showed more breakage and the lower density than Ube

Compaction

Weathering

Crushability

Single particle crushing

Mineral composition