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温度裂缝对钢筋锈蚀、炭化、抗冻融、抗疲劳等方面有很大影响,因此如何控制混凝土温度裂缝是保证水工大体积混凝土质量的关键,多年来,通过对南阳鸭河口水库闸底板、杨庄滞洪区闸底板、龙岗电厂取水口净水池底板的施工,分析总结,浅谈一下自己的见解。1 现象表面温度裂缝走向无一定规律性,大面积结构裂缝常纵横交错,深进的贯穿的温度裂缝,一般与短边平行或接近平行,裂缝沿全长分段出现,中间较密。裂缝宽度大小不一,一般在
Therefore, how to control the temperature crack of concrete is the key to ensure the quality of mass concrete in hydraulic engineering. For many years, through the research on the bottom of the Yahekou reservoir in Nanyang, Yang Zhuangzhong flood zone gate floor, Longgang Power Plant water intakes clean water pool floor construction, analysis and summary, a brief talk about their own opinions. 1 Phenomenon The phenomenon of surface temperature cracks has no regularity. Large-area structural cracks are often criss-crossed. The penetrating temperature cracks are generally parallel or nearly parallel to the short sides, and the fractures appear along the full-length sections with a dense middle. Crack width varies, generally in