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长科院等单位协作研制的低热微膨胀水泥,从混凝土性能着手,降低坝体的温升,改善应力状态,从而减少裂缝,简化温度控制措施,加快施工速度。1976年后,从室内试验进入到现场施工试验阶段,先后在浙江江波潭、长诏水库大坝及福建地潭水电站大坝进行施工试验,其中以池潭大坝混凝土浇筑规模最大,其结构型式与施工条件反映了我国大、中型水利枢纽一般情况,具有代表性。因此本文主要总结池潭大坝混凝土施工试验成果。
Long-term research institutes and other units of low-thermal micro-expansion of cement, concrete performance from the start to reduce the temperature rise of the dam to improve the stress state, thereby reducing cracks, simplifying temperature control measures to speed up the construction speed. After 1976, from the laboratory test to the on-site construction pilot phase, construction tests have been carried out in Zhejiang Jiangpo Tanchang, Changzhao Reservoir Dam and Fujian Ditan Hydropower Station dam, of which the largest is the concrete pouring of the reservoir, the structure type And construction conditions reflect the general situation of large and medium-sized water conservancy hubs in our country and are representative. Therefore, this paper mainly summarizes the results of the test of concrete construction of the pool dam.