【摘要】 以加速腐蚀试验对扩散规律的认识为基础,考虑化学反应造成酸液浓度降低对腐蚀的阻滞作用,建立了在大体积岩石及混凝土材料中考虑化学反应影响时溶质的扩散控制方程,开发了相应的二维有限元分析程序,结合某一水利工程受酸雨影响的使用寿命问题,提出了一种预测大体积岩石及混凝土中酸液浓度扩散范围随时间变化及强度劣化规律的思路与方法.更多还原

【Abstract】 Based on the research of accelerated corroded test and understanding for diffusion regularity,the distribution function of the concentration of mass rock and concrete materials is obtained in consideration of chemical reaction effect. 2-D seepage and diffusion FEM calculation program is developed to predict the service life of rock slope of dam abutment in acid rain region.The deteriorative regularity of the uniaxial compressive strength of mass rock and concrete and the character of hydrion concentration variation at different stage are put forward.更多还原