海洋环境耐久混凝土的配合比优化研究

Study on mixing proportion optimization design of durable concrete in marine environment

以混凝土材料成本为优化目标,以混凝土耐久性、强度和工作性能为约束条件,建立海洋环境耐久混凝土配合比的优化数学模型。分析了表面氯离子浓度、保护层厚度对耐久混凝土配合比的影响。为辅助现场试验提供了优选思路,为优化结构初始成本提供了定量的依据。

An optimal mathematic model of durable concrete in marine environment is established taking the material cost as an objective function, and the requirements of durability, strength and working capability as restraints.The influence of chloride concentration at concrete surface, depth of the concrete cover on mixture was analyzed.The study could assist the optimum selection of set trial, and provide the quantitative basis for initial cost of structure.