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long jiang shui dian zhan shuang qu gong ba hun ning tu shi gong wen kong cuo shi
Author(s): 
Pages: 16-18
Year: Issue:  3
Journal: Water Resources & Hydropower of Northeast China

Keyword:  双曲拱坝混凝土温控措施龙江水电站;
Abstract: 对于大体积混凝土施工,水泥水化热是引起混凝土内部温度变化,而导致混凝土裂缝产生的主要原因.为了防止产生温度裂缝,龙江水电站双曲拱坝混凝土施工的温控,着重从选择混凝土原材料、优化混凝土配合比、降低混凝土浇筑温度、降低混凝土的水化热温升、降低坝体内外温差、表面保护等方面采取了一系列措施,达到了设计温控要求.
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