Performance Analysis of High-Performance Concrete Materials in Civil Construction

This paper develops the mechanical and durable samples of C50 high-performance concrete, studies properties, crack resistance, sulfate attack frost impermeability concrete with different mineral admixtures powder fly ash, obtains best admixture ash to improve performance concrete. The results show that doping effect is when ratio prepared 3:2. With increase in powder–fly admixture, slump expansion decrease rapidly at first then slowly. In total, 60% turning point; compressive flexural strengths decreased slowly rapidly. Taking 30% as point, 35% generally selected. By mixing adding a certain proportion admixtures, resistance enhanced, shrinkage cracking are reduced. corrosion coefficient will exceed 88%, relative dynamic elastic modulus 95%, grade reach P17. durability can be improved by admixtures.