谈潭衡西高速公路白垩系粉砂质泥岩风化特性

针对不同风化程度的粉砂质泥岩岩体进行了工程特性、风化耐久性和风化速度试验,试验结果表明：随着岩体风化程度的加深,岩石中黏土矿物含量增加,岩石中碱和碱土金属氧化物含量相对减少,岩石干密度降低、总孔隙度和吸水率增大,力学性能降低,岩体更容易软化崩解。岩石的风化速率与自身的风化状态和暴露的面积有关。

Discussion on the weathering characteristics of creataceous silty mudstone along Xiangtan to Hengyang expressway

The experiment of the engineering characteristics,the weathering durability,the weathering speed to be done for the different weathering degree argillaceous siltstone.The test result show that when the weathering degree of the rock mass deepen,the content of clay minerals in the rock mass is increase,the alkali metal oxides composition in the rock mass is decrease relatively,the dry density of the argillaceous siltstone is decrease,the total porosity and the water absorption of the argillaceous siltstone is...