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在住宅建筑工程建设中,利用粒化高炉矿渣粉、混凝土用粉煤灰等作为外掺胶凝材料的技术应用比较普遍。由于公路、桥梁使用的受力多样性、使用特殊性,外掺材料在公路、桥梁实际施工中应用范围很窄。近年来高性能混凝土广泛应用及水泥等建筑材料价格涨幅较大,导致水泥混凝土成本居高不下,在保证满足质量设计、使用要求的基础上,在高性能混凝土中合理掺加矿渣粉降低混凝土成本、降低水化热、提高耐久性,是工程施工中需要改进的问题。
In the construction of residential buildings, the use of granulated blast furnace slag powder, fly ash concrete as the external mixing material is more common application of technology. Due to the variety of forces and the special nature of the use of roads and bridges, the application of extraneous materials in the practical construction of highways and bridges is very narrow. In recent years, the widespread application of high-performance concrete and cement and other building materials, a substantial increase in the price, resulting in high cement concrete costs, to ensure that meet the quality design, use requirements, based on the high performance concrete mix slag slag reasonable to reduce the cost of concrete , Reduce hydration heat, improve durability, is the construction of the need to improve the problem.