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随着国民经济的发展,城市中的高层建筑群越来越多。在施工中,一般建筑机械不能适应工程进度和质量的要求,促使砼泵在建筑施工中的使用越来越多,而且是不可缺少的。经多年在施工中使用的经验,工艺总结出以下几点,供大家探讨。1、可泵砼配合比根据工程结构和施工工艺要求,试验出具有可泵性既经济而质量又好的砼,必须搞好砼配合比。使大小不等、比重不同的各类物料,尤其石子应为悬浮状态才能顺利泵送。而采用实际可泵送的砼配合比与理论相结合的方法,以实际可泵送配合比为主,是衡量砼可泵性和经济优劣的可靠方法。根据实际的操作,结合哈尔滨市的气候,以及骨料的材质,其砼配合比如下表为宜。
With the development of the national economy, there are more and more high-rise buildings in the city. In the construction, the general construction machinery can not meet the requirements of the progress and quality of the project, prompting the concrete pump in the construction of more and more use, but also indispensable. After years of experience in the construction, craft summarized the following points for your discussion. 1, pump concrete mix According to the engineering structure and construction process requirements, test out with both pump economy and good quality and good concrete, concrete mix must be done. So that the size of different proportions of different types of materials, in particular, should be suspended in the state of stones can be successfully pumped. The use of the actual ratio of pump concrete can be combined with the theory of combining methods to pump the main mix of concrete-based, is a measure of concrete pumpability and economic advantages and disadvantages of a reliable method. According to the actual operation, combined with the climate in Harbin, as well as the aggregate material, the concrete mix with the following table is appropriate.