【摘要】 用盐冻剥落量、DF值、重量损失、Cl- 离子扩散深度和钢筋锈蚀率五个耐久性参数来比较了按耐久性设计的优化混凝土与按传统设计混凝土两者间的性能优劣 ,同时比较了南方与北方的粉煤灰对混凝土性能的不同影响。更多还原

【Abstract】 The durability of two kinds of concrete, designed respectively in accordance with durable concrete proportioning and traditional proprtioning, are compared by experimental measuring the five parameters, such as scaling loss for freeze-thawing in solt solution, DF factors and the loss of mass of concrete in freeze-thawing, the depth of Cl- diffution and the corrosion rate of reinforcement. Concurrently, the different influences of two fly-ash, produced in the south and the north, on concrete durability are compared.更多还原