Influence of allophane content on the physical properties for volcanic cohesive soil
1999
So, E.K. (Kanto-Gakuin Univ. Yokohama (Japan). Faculty of Engineering)
Relationship between allophane content and physical properties for volcanic cohesive soil was investigated. The main results are as follows: 1) Allophane clay minerals are the main factor for forming ped structures. 2) Acid dispersion is more effective than alkali dispersion when the allophane content is above 50%. 3) Natural water content, liquid limit, non-free water content and natural void ratio increasing linearly with allophane content respectively. 4) Volcanic cohesive soil lies below A-line in plasticity chart and fall more far from the A-line with increasing allophane content. The soil has its characteristic linear line in the chart. 5) Compacted dry density decreases linearly with increasing allphane content
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