高性能混凝土不是一个混凝土的品种，而是表明混凝土的“性能”（performance）或者质量、状态、水平的一种称谓，是按照具体工程的要求和所处环境条件，满足特殊组合的性能而均匀、致密的高质量混凝土。高性能混凝土的耐久性设计涉及原材料选择与控制、配合比设计、制备工艺和施工质量控制的全过程。按工程要求的耐久性选定原材料后，从“NEL法的氯离子扩散系数-渗透性关系”中初选水胶比，用绝对体积法计算配合比，进行试配和强度校核。%High Performance Concrete(HPC)is not a type of concrete. HPC is an appellation emphasized performance and quality of the concrete. HPC must be designed with the aim of durability,and according to the environmental and engineering demands.HPC is a homogeneous and dense concrete of high quality,and should be met the combination of some performances requirement not only strength even not strength.Durability design of HPC involves the whole process including the choice and quality control of raw materials, mixing proportion and production techniques, quality control of construction. When the raw materials have been chosen according engineering demanded durability,W/B can be selected primary from the“ relationship between chlorion diffusivity and permeability with NEL method” ,then to calculate mix proportion using the absolute volume method,and to try mixing and verify the strength.
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