高水头下层间碾压混凝土渗透溶蚀规律研究

Experimental Study of Layered RCC on Permeability and Leakage of Calcium Under High Water Head

研究了渗透溶蚀对碾压混凝土层面和本体的影响,分析比较了渗透系数、渗水总量、溶出液中钙离子的浓度、钙离子溶出总量的历时变化规律,并且通过线性和非线性拟合一年内钙离子将达到的溶出量,从而证实了高水头下渗透溶蚀长期作用会严重影响含层面的碾压混凝土的耐久性。

There are two situations of deterioration of RCC specimen studied in this paper: The orientation of hydraulic gradient is parallel to the interlayer of RCC specimen is studied in comparison to specimen without interlayer. The permeability and the dissolution of calcium are discussed and the volume of leaking water and the weight of leaking calcium are calculated in one year later. The results validate that RCC with the interlayer is seriously deteriorated under high water pressure in the long run.