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【摘 要】粉煤灰含有大量活性成分，将优质粉煤灰应用于高性能混凝土中，不但能部分代替水泥，而且能提高混凝土的力学性能。在现代砼工程中，粉煤灰己经为高性能混凝土的一个重要组分。
【关键词】粉煤灰；高性能混凝土；强度；和易性；徐变；耐久性；水化热；抗渗性；抗冻性；工程应用；力学性能
On the application of fly ash in high performance concrete
Wang You-shou
(The Xi''an Longchuang Electronic Technology Co., Ltd Xi''an Shaanxi 710000)
【Abstract】Fly ash contains large amounts of active ingredients, high-quality fly ash used in high-performance concrete, not only to the partial replacement of cement, but also improve the mechanical properties of concrete. Modern concrete engineering, the fly ash has a high-performance concrete is an important component.
【Key words】Fly ash;High-performance concrete;Strength;Workability;Creep;Durability;Heat of hydration;Impermeability;Frost resistance;Engineering applications;Mechanical properties
1. 概述
高性能混凝土是近年发展起来的一种新材料，是混凝土技术进入高科技时代的产物。高性能混凝土具有高工作性、高强度和高耐久性，通常需要使用矿物掺合料和化学外加剂。粉煤灰就是其中一种，它是工业废料，量大，价廉，不需(或稍进行)加工即可满足配制高性能混凝土的要求。
【关键词】粉煤灰；高性能混凝土；强度；和易性；徐变；耐久性；水化热；抗渗性；抗冻性；工程应用；力学性能
On the application of fly ash in high performance concrete
Wang You-shou
(The Xi''an Longchuang Electronic Technology Co., Ltd Xi''an Shaanxi 710000)
【Abstract】Fly ash contains large amounts of active ingredients, high-quality fly ash used in high-performance concrete, not only to the partial replacement of cement, but also improve the mechanical properties of concrete. Modern concrete engineering, the fly ash has a high-performance concrete is an important component.
【Key words】Fly ash;High-performance concrete;Strength;Workability;Creep;Durability;Heat of hydration;Impermeability;Frost resistance;Engineering applications;Mechanical properties
1. 概述
高性能混凝土是近年发展起来的一种新材料，是混凝土技术进入高科技时代的产物。高性能混凝土具有高工作性、高强度和高耐久性，通常需要使用矿物掺合料和化学外加剂。粉煤灰就是其中一种，它是工业废料，量大，价廉，不需(或稍进行)加工即可满足配制高性能混凝土的要求。