现浇箱梁混凝土配合比设计的探讨

On the mixing ratio design of the cast-in-place box beam concrete

结合江苏省江海高速公路海安一标桥梁上部结构施工情况,就高强度等级泵送混凝土配合比设计时原材料的选择、坍落度的确定进行了探讨,最终选出满足适用性、经济性及耐久性的混凝土配合比,经检验该配合比效果良好。

Combining with the construction situation of the super structure of the Hai＇an No. 1 bridge on the Jiang-Hai expressway in Jiangsu province, the paper discusses on the selection of the raw material and the confirmation of the slump in the design of the mixing ratio of the high strength grade pumping concrete, finally finds out the concrete mixing ratio which can satisfy the applicability, economy and durability, the mixing ratio effect is fine through the test.