第二松花江上游红石水电站的科技人员,为防高寒冻害,1986年冬利用冰导热差的特点,对12~#～15~#坝段的三个溢流面混凝土(表面积为1,152平方米)实行冰保温,取得省工、省钱、防裂的效果。冰保温的施工方法:当日最高气温在摄氏零度以下时,将大坝溢流面用水浇冰厚约0.5～0.6米,使溢流面外部包裹一层天衣无缝的铠甲,如同穿上一件厚厚的冰衣,防止溢流面混凝土的冻害。与常用草垫子保温相比,冰保温的优点是:1、无搭接缝,保温效果好。也不影响新混凝土水化热散失;2、可以就地取水,不耗用其它材料。该电站大坝溢流面用冰保温,节省保温费1万元;3、施工方 The second Songhua River upstream of Hongshi Hydropower Station scientists, in order to prevent cold damage, the winter of 1986 the use of poor thermal conductivity of ice, 12 ~ # ~ 15 ~ # dam of the three overflow surface concrete (surface area of ​​1,152 square meters ) Implementation of ice insulation, made labor, money, crack effect. Ice insulation construction method: the maximum temperature of the day below zero degrees Celsius, the dam overflow surface with water pouring ice thickness of about 0.5 to 0.6 meters, so that the overflow surface wrapped in a layer of seamless armor, as wearing a thick Of the ice to prevent the overflow side of the concrete frost damage. Compared with the commonly used grass mat insulation, the advantages of ice insulation is: 1, no lap joints, thermal insulation effect. Does not affect the new concrete hydration heat loss; 2, can take water on the spot, do not consume other materials. The dam overflow surface thermal insulation with ice, saving insulation costs 10,000 yuan; 3, the construction side