废弃磷尾矿用作路面基层材料的试验研究

Test Study on Application of LWK as Materials of Pavement Base

简要分析废弃磷尾矿的环境影响情况 ,表明其作为路面基层材料和路基填料是安全的。通过试验提出石灰粉煤灰 (简称“二灰”)稳定和石灰粉煤灰水泥综合稳定 ,以及结合正交设计方法提出掺外加剂的二灰稳定废弃磷尾矿的优选配合比 ,分析影响混合料强度的诸多因素 。

The analysis of LWK environment effects shows that it is safe for LWK to be used as pavement base and roadbed materials Based on systematical test research,paper proposes the optimized mixing design for LWK stabilized by use of the lime?fly ash,cement mixed into the lime?fly ash, and mixture mixed into the lime?fly ash by the orthogonal design method,analyses various factors that may influence the strength of mixture,and determines their performanles for road applications,so as to provide scientific basis for extending application of this material to the pavement base