大体积混凝土裂缝成因及治理

结合某大跨度简支箱梁工程实例,介绍了大体积混凝土裂缝的特点,从温度变化、收缩、钢筋锈蚀、施工材料、施工工艺等多方面探讨了大体积混凝土产生裂缝的原因,针对性地具体阐述了防止裂缝产生的几种方法,从而合理有效地控制大体积混凝土裂缝。

On the causes and treatment of the cracks in mass concrete

Combining with the example of one large-span simple supporting box girder,the thesis introduced the characteristics of the cracks in mass concrete,discussed the causes of the cracks for mass concrete from many different aspects： variation of temperature,contraction,steel corrosion,construction materials,construction processes and so on,illustrated detailed several ways to prevent cracks happening,so as to control the cracks in mass concrete reasonably and effectively.