高原高寒地区泵送C20混凝土试配实践的分析与探讨

原材料是决定混凝土性能的主要因素,材料的变化将导致混凝土性能的波动。为满足混凝土设计强度、抗冻性、抗渗性等要求和施工和易性的需要,混凝土施工配合比必须进行优选试验。详细介绍了吉沙水电站混凝土配合比设计的原则、原材料的检测、外加剂的选用及混凝土配制强度等,可供以后混凝土配合比设计参考。

Analysis and Study on Pumped C20 Concrete in Cold Plateau Regions

The raw materials are the main factors for determining the performance of concrete.To meet the requirements on design strength,frost resistance,impermeability and others,and the construction workability of concrete,the mix proportion of concrete must be optimized.In this paper,the design principle,material test,selection of admixtures and production intensity of concrete for Gisa Hydropower Station construction are introduced,and can be as reference for future concrete design.