Application of WKL to pavement subbase

The analysis of WKL chemical and physical properties, and environment effects was carried out.The results show that it can be applied to the subbase and roadbed.By the orthogonal test method, this paper proposed the optimized mixing for WKL stabilized by use of the lime fly ash, mixture mixed into the lime fly ash and cement mixed into the lime fly ash, analyzed various factors that may influence strength of the mixture, and determines their technical parameters for road applications.In Lianyungang, the optimized mixing was applied to pave the base of 1 km test road so as to examine the practical test and analyze the application mechanism.This study can provide the feasible and rational optimized mixing for the popularization and application of this material to pavement subbase, and provide the system of feasibility and guarantee for engineering construction.