C40海工高性能混凝土配合比的优化设计

通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能,对C40海工混凝土的配合比进行了优化设计。研究表明：加入合适的矿物掺合料,不仅能够改善混凝土的工作性能,降低水泥的水化热,并且提高了混凝土的抗氯离子扩散性能。掺入适量粉煤灰、硅灰和矿粉,可以配制出抗裂性能好、90天氯离子扩散系数小于2.0×10^-12m^2/s的C40海工高性能混凝土。

Optimization of the Mixture Ratio of C40 Marine High Performance Concrete

The mixture ratio of C40 marine high performance concrete is optimized through test of the hydration heat of binding material,slump,chloride ion diffusion coefficient,anti-crack rand of concrete. The results show that,the concrete workability can be improved,the hydration heat of cement can be reduced and the anti-chloride ion diffusion performance can be improved by adding the appropriate mineral admixture. The C40 marine high performance concrete ,with good cracking resistance and the 90th day chloride io...