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《CONCRETE》 2000-01
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Topic An Orthogonal Experimental Study on Increasing Strength and Durability of Ordinary Concrete

Leng Faguang Feng Naiqian (Civil Engincering department of Qinghua University) Xing Feng (The College of Architectural Design and Civil Engineering,Shenzhen University)〔  
? In order to solve the problems of structural asymmetry,bad permeabitity resistance,and short service life of ordinary concrete universally applied in China,aurthors carried out a series of experimental studies aimed at increasing strength and durability of ordinary concrete by orthogonal experiments.The experimental results show that:(1)the structural uniformity may be cnsured;(2)the loss of slump may be restrained and met the requrement of pumping construction and big fluidity;(3)the hardened concrete has high strength;(4)the durability of concrete is notably increased,and the service life is notably extended by adjusting the ratio of inner components of concrete,limithng the unit consumption of water,controlling the water binder ratio,adding some composite super fine powder with appropriate fieness,and by adding supcrplasticizer which can restrain the loss of slump of concrete. 〔
【CateGory Index】: TU528
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