【摘要】 以崇启大桥箱梁混凝土施工为依托,提出了配合比设计方案,并借鉴国内外工程经验,开展江海交汇环境下混凝土耐久性失效状况研究,评估了崇启大桥预期采用高性能结构混凝土的抗氯离子渗透及抗盐雾侵蚀性能.通过对混凝土的工作性能、力学性能及各项耐久性性能的分析和研究,最终得到配合比优化方案.更多还原

【Abstract】 For the construction of box girder concrete of Chongqi bridge and combined with key points of quality control,the mix designs were proposed. The durability of box girderconcrete were studied in salt spray environment. The finally mix proportion was obtained in the study of work performace, mechanical properties and durability performance.更多还原