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当前公路工程及其他基本建设工程中,水泥供应仍感不足。如何采取节约水泥措施,以有限的水泥,修建更多的永久性工程,具有十分重要的意义。现行的公路设计和施工规范中,对不同工程部位水泥最少单位用量,有明文限制;对采取特殊措施后水泥用量可以减少到何种程度,还没有规定;这也使施工人员不能大胆改进。但如没有足够的依据,确也不能轻易加以变动。为此,笔者谨以本文谈谈个人从1957年以来,在施工过程中进行过的一些探索,和几年来个人的想法提供同志作全面深入讨论时的参考。一、具体措施及试验结果混凝土结构都要求有一定的强度,在冰冻地区,还要求具有足够的抗冻性,水工中还要求具有抗渗
In the current highway projects and other capital construction projects, the cement supply is still insufficient. How to take conservation measures to cement with a limited amount of cement to build more permanent projects, is of great significance. In the current highway design and construction codes, there is a clear restriction on the minimum amount of cement used in different construction sites; there is no stipulation on the extent to which cement consumption can be reduced after special measures have been taken and this can not be boldly improved by construction workers. But if there is not enough evidence, it can not be easily changed. For this reason, I would like to use this article to talk about some of the personal explorations that have been carried out in the construction process since 1957, as well as references for individuals who have made personal in-depth discussions during the past few years. First, the specific measures and test results Concrete structures require a certain strength, in the frozen areas, but also requires adequate frost resistance, hydraulic also requires impermeability