Research on preparation technology of ferroaluminate cement high performance concrete in nuclear power engineering
Based on the performance characteristics of ferroaluminate cement,a series of ferroaluminate cement concrete are prepared with different unit water consumption,sand rate and mineral admixture content.The influence of design indexes such as unit water consumption,sand rate and mineral admixture content on the working performance and basic mechanical properties of ferroaluminate cement concrete are studied through special experiments.The results show that considering the construction performance and compressive strength of concrete,the optimal unit water consumption of ferroaluminate cement concrete is 170 kg/m3.The recommended sand rate ranges from 38%to 40%.The optimal dosage range of fly ash is 20%to 25%.Adding silica fume can significantly reduce the viscosity of ferroaluminate cement high performance concrete,and the recommended dosage is 15～30 kg/m3 per cubic meter of concrete.In order to meet the requirements of pumping construction,the outlet slump of ferroaluminate cement concrete should be controlled between 190～220 mm.
nuclear power engineeringferroaluminate cementhigh performance concretepreparation technique
万方数据
维普
