陈 波1 ,张亚梅1 ,华卫兵2 ,秦鸿根1 ,陶建飞3 ,朱英华4
自密实混凝土在苏通大桥承台封底中的应用
陈 波1 ,张亚梅1 ,华卫兵2 ,秦鸿根1 ,陶建飞3 ,朱英华4
摘 要: 介绍了水下混凝土的特点及要求,总结了苏通大桥承台封底混凝土(C30)的配合比的设计原则以及实际施工中采用的配合比和其应用效果。通过对钻取的混凝土芯样进行抗压强度测试及对封底自密实混凝土进行表观质量检查,证明苏通大桥主墩承台封底自密实混凝土的施工是成功的。
Abstract: The characteristics and requirments of underwater concrete are introduced. And the principal of propartioning and the application effects of concrete, that had been used in Sutong Bridge for sealing up the bottom of bearing platform of the bridge pier, are discribed. According to strength tests of core-dilled speciments and inspection of appearance, it is demonstrated that the construction of this selfcompacting concrete, that seals up the botton of bearing placform of piers in Sutong Bridge, is successful.
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