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建筑工程施工中,大体积混凝土结构是经常可以见到的,比如在高层建筑的深梁、底板等等中,然而由于混凝土具有过大的体积,聚集的水化热过大,当混凝土内外不能均匀的散热,再加上受到内外约束的时候,会在其内部形成较大的温度应力,从而形成裂缝。所以,在建筑工程大体积混凝土的施工中最关键的是要避免裂缝问题,本文通过对大体积混凝土施工中出现裂缝问题的原因以及对其的预防进行了简要分析,希望可以给相关业内人士提供些许建议。
In the construction of a building, the massive concrete structure is often visible, for example, in deep beams, floors, etc. of high-rise buildings. However, due to the excessive volume of the concrete, the heat of hydration of the aggregate is too large. Uniform heat dissipation, coupled with internal and external constraints, creates large thermal stresses in the interior, creating cracks. Therefore, the most critical part in the construction of mass concrete is to avoid cracks. This paper briefly analyzes the causes of cracks in the construction of mass concrete and its prevention, hoping to provide relevant industry Some suggestions.