红粘土有效胶结特征的初步研究

Preliminary Study on the effective Cementation Characteristics of the Red Clay

本文通过时红粘土有效胶结铁含量确定方法的探讨，系统地研究了一种典型红粘土的胶结特征。结果表明：游离氧化铁起胶结作用的只是其中一部分，其含量可通过动态化学选择溶解法确定，有效胶结铁的溶蚀给红粘土的工程特性带来明显的影响。

In this paper systematic study has been conducted on the cementation chdracteritics of a typical red clay based on discussion of the method to determine the content of iron with effective cementation. As can be seen from the result,only a portion of the free iron oxide plays a role in cementation, and the content of iron can be measured by the kinetic chemical selective dissolution,The eresion of the iron with effective cementation will affect signifi-cantly the engineering propertles of the red clay.