原材料质量控制及配合比优化对混凝土结构耐久性影响的试验研究

Experimental Study on Influence of Raw Material Quality Control and Mix Proportion Optimization on Durability of Concrete Structure

通过原材料质量控制及配合比的优化对混凝土耐久性进行了深入的试验研究,考虑了水泥品种、碎石基本性能指标及级配等因素对混凝土耐久性指标的影响。研究结果发现:增加水泥熟料含量、降低碎石含泥量可有效改善混凝土耐久性各项指标,合理的骨料集配可以提高混凝土的耐久性指标。

In this paper,through the quality control of raw materials and the optimization of mix proportion,the durability of concrete is deeply investigated.The influence of cement varieties,basic performance index and gradation of crushed stone on the durability index of concrete is considered.The results show that increasing the content of cement clinker and reducing the content of mud in crushed stone can effectively improve the durability indexes of concrete,and reasonable aggregate mixing can improve the durability indexes of concrete.