【摘要】 对碾压混凝土的溶蚀和渗透耐久性进行了化学、宏观、微观等方面的阐述,揭示了碾压混凝土的溶蚀机理,简述了碾压混凝土临界水力梯度及渗透、溶蚀耐久性的关系。为直接使用碾压混凝土作为大坝防渗体、减少防渗层厚度、进一步降低内部碾压混凝土的水泥用量和大量掺用粉煤灰提供了理论依据更多还原

【Abstract】 The paper provides relations on the boundary hydraulic gradient, durability of permeability and dissolvability of lime in RCC by setting forth chemical, macro and micro side contents and reveals the dissolve mechanisms of RCC. Then, related theoretical basis in depend on RCC’s own as waterproofing defense, decreasing the thickness of anti-seepage coating of dam and cement content of RCC, and the use of high volumes of fly ash in RCC is presented.更多还原