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With the develop of economy,our city and the basic establishment is developing fast,our country have a big effort on the production and application for concrete which have good running quality,for meeting the rising requirement of good running quality and strength of concrete,we must pick up the study of application for the concrete which have good running quality,strength,performance and so on.This article has analyzed the mechanics of action of high efficiency water reducing agent at first,by using some of high efficiency water reducing agent the concrete can reduce water consumption and water cement ratio,improve strength of concrete,at the same time the concrete require add blending composition which have good quality,fly ash can reduce the dosage of cement,develop the workable of concrete,it also can fall the speed of the heat of hydration dissipating,and fall the initial strength,avoid appear initial crack,by using high efficiency water reducing agent and blending composition, we can reduce water colloid radio,develop the type of construction of cavitations, durability and strength of concrete.Secondly,this paper gained the preparation high-strength concrete of large liquidity required to carry out compatibility tests and the right mixture of content according to the comparative analysis of high-strength concrete of large liquidity of different materials and different content.According to the preparation of C60 and C70,the two high-strength concrete,we gained the concrete mix rate of the high-strength concrete of large liquidity,and by experiment,we analysised and gained the main factors and secondary factors that impact the preparation of the high-strength concrete of large liquidity.So we can strengthen the main factor and to reduce secondary factors purposeful.Finally,we carried out research and analysis of the durability of high-strength concrete of large liquidity,the contradiction of strength and mobility and the control of the loss of concrete slump,and we prevented and treated the cracks that formed by the big cement consumption of high-strength concrete.according study on the formulation for the concrete of C60、C70,and we have used in project successfully,provided the examination foundation scientific and reasonable working mix proportion,and put up the concrete by use of ordinary material.
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