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本规程根据近年来取得的技术进步和科研成果以及大量工程实践累积的的经验,从1991年开始进行了修订补充,现将该规程和补充的主要内容按章节顺序介绍如下。1 在总则中增加了普通混凝土的定义 在总则中增加了普通混凝土的定义——用普通砂、石制作的混凝土,其干密度不低于2000kg/m~3,但亦不超过2800kg/m~3。这一定义是与国际上的欧洲混凝土协会(CEB)和预应力混凝土协会(FIP)的1990年模式规范(混凝土结构)相一致的。
This regulation has been revised and supplemented from 1991 based on the technological progress and scientific research results obtained in recent years and the accumulated experience of a large number of engineering practices. The main contents of the regulations and supplements are presented in the order of chapters as follows. 1 The definition of ordinary concrete is added to the general rule. The definition of ordinary concrete is added to the general rule. Concrete made of ordinary sand and stone has a dry density of no less than 2000kg/m3 but no more than 2800kg/m~ 3. This definition is consistent with the 1990 European model specification (concrete structure) of the European Concrete Association (CEB) and the Prestressed Concrete Association (FIP).