关于水工碾压混凝土的低热性

Low Heat Property of Hydralic R C C

低热性是水工碾压混凝土应当具备的性能。为获得低热性必须降低混凝土的胶凝材料用量。胶凝材料用量的降低会对混凝土的物理力学性能产生影响,受影响最大的是混凝土的抗渗性。不要求混凝土具有抗渗性能就可以把胶凝材料用量大幅度地降低下来,在此情况下,设置单独的防渗结构来承担坝体防渗任务。这是一种适合碾压混凝土坝快速、经济施工的方式。

Low heat is a property required by hydralic roller compacted concrete. It is necessary to reduce the content of cementitious material for the acquisition of the low heat property. The reduction of cementitious material content can exert an effecf on the physical and mechanical properties of r. c. c and the maximum effect is exerted on the impermeability. As the impermeability is not required for r, c. c. , the cementitious material content can be reduced greatly. In this case, the construction of an indepentent impervious barrier is necessary and suitable for rapid and economical construction of r. c. c. dams.