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以连霍高速公路郑洛段改建工程为例,通过调研混凝土缺陷现状,开展高性能混凝土试验研究。从料源质量,配合比优化,搅拌系统与工艺优化,振捣、浇筑工艺优化,脱模剂优化等方面进行试验研究,从混凝土的力学性能、耐久性能、经济性及外观效果等方面进行结果分析,得出本工程中所用混凝土效果良好,满足施工要求。
Taking the reconstruction of Zhengluo Section of Lian-Huo Expressway as an example, the research on high-performance concrete is carried out by investigating the status of concrete defects. From the aspects of material source quality, optimization of mixing ratio, optimization of mixing system and process, vibrating, optimization of pouring technology and optimization of mold release agent, the results were obtained from aspects of mechanical properties, durability, economy and appearance of concrete Analysis shows that the concrete used in this project works well to meet the construction requirements.