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Studies on Thixotropy. II. On the Thixotropic Gel Structure of Bentonite

1960; Oxford University Press; Volume: 33; Issue: 4 Linguagem: Inglês

10.1246/bcsj.33.523

1348-0634

Takehiko Watanabe,

CO2 Sequestration and Geologic Interactions

Abstract (1) Discussions are carried out on the structure of the thixotropic gel of bentonite on the basis of the relation between the gel strength and the concentration, and the steric conditions of the junction point between two particles participating in structure. (2) The gel strength is determined by the particular group of particles in the structure which acts as the structural unit. (3) The particle group which plays the part of the structural unit is not limited to one kind but more than one may coexist in a system. The gel strength is determined by one kind of the particle groups according to the experimental method used. (4) The structure of the thixotropic gel of bentonite is classified into two types according to the mode of association between particles. One of them is the structure in which linear ribbons, which act as structural units, are formed by the aligned particles linking each other at one point. The other is the structure in which linear ribbons are formed by the particles linking at two or more points on one straight line.