Analysis of the Mineral Compositions of Lateritic Clay in Guangxi and their Influence

In order to study the effect of mineral composition on physical properties lateritic clays, compositions four kinds clay from Guangxi province in China were quantitatively analyzed by means DTA, XRD, SEM, XRF and total chemical element analysis. On this basis, variation law macroscopic was perspective mineralogy. The results show that kaolinite goethite are main minerals clays China. these samples accurately Bogue’s method. According soil samples, related its cemented substances. liquid limit (LL) or plastic (PL) increases with increase ability content adsorb water. is dominated low adsorption capacity, so observed boundary water (LL PL) high value can be explained contribution “inert water” pores. iron-bonded cement (the form existence goethite) have great influence limits, which decrease linearly goethite, whereas has relatively smaller shrinkage characteristics. It believed characteristics may also affected other factors.