大体积混凝土施工中裂缝问题的探讨

Discussing the Crack Question in Mass Concrete Construction

大体积混凝土结构的裂缝问题是具有普遍性的技术问题。产生裂缝的原因很多,其主要因素是水泥的水化热产生的温度变形和混凝土的收缩变形的共同作用。对如何严格控制混凝土温度,降低内外温差,减小混凝土的收缩,确保大体积混凝土工程施工质量,就材料、配合比及施工方面提出一些技术性措施。

The mass concrete structure crack is universal, its primary factor is the temperature distortion and the concrete shrinkage strain which the cement hydration heat produces, the paper proposes some technical measure to strictly control the concrete temperature, reduce inside and outside temperature difference, reduce the concrete contraction, guarantee the mass concrete project construction quality, the material and the construction.