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在混凝土施工中,评价混凝土结构施工质量的优劣不仅仅是单纯满足混凝土强度等级及施工性要求,对影响工程使用寿命的混凝土结构耐久性,其技术要求已然成为评定混凝土结构质量的重要因素。设计有耐久性要求的混凝土,在选用检验合格原材料的同时,要考虑混凝土结构所处的环境条件。通过对某桥梁工程用C45耐腐蚀水下混凝土配合比的设计实例,对耐久性混凝土配合比设计以及混凝土的质量控制作一些探讨。
In concrete construction, the evaluation of the quality of concrete structures is not only to meet the construction quality of concrete to meet the concrete grade and construction requirements, durability of concrete structures affect the durability of the project, its technical requirements have become an important factor in assessing the quality of concrete structures. Designed to meet the durability requirements of concrete, the selection of qualified raw materials at the same time, we must consider the concrete structure in which the environmental conditions. Through the design example of C45 anticorrosive underwater concrete for a bridge project, some discussions are made on the mix design of durable concrete and the quality control of concrete.