随着建筑向大跨度、超高层的发展和特殊条件下对高耐久性的要求，作为工程主要材料之一的混凝上的发展已引起了普遍关注。高性能混凝土概念提出之后，国内外都开展了深入的研究。本文对高性能混凝土高强机理作了较详细的分析。并通过双掺高效减水剂和粉煤灰的试验研究，分析了高性能混凝上的配制特点，研究了高效减水剂和粉煤灰对混凝上强度的影响以及粉煤灰对混凝上强度增强机理。阐述了粉煤灰利用的经济性和环保效益。

Accompanied with the high-duration requirement under the special situation and the developing tendency of architecture towards large span and extra-high store, the development of the concrete which is one of the main engineering materials has been taken widely into attention. After the conception of the high-property concrete had been proposed, the thorough researches have been put forward at home and abroad. The high-strength mechanisms are analyzed in detail for the high-property concrete in this paper. Based on the experimental researches on high-efficiency bi-mixture dewatering agent and fly ash, the composite characteristics of the high-property concrete are analyzed. The influences of high-efficiency dewatering agent and fly ash on the strength of concrete, the economic and environmental protective benefits on application of fly ash are expounded also in this paper.