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在施工工地和建筑工业企业中,特别是在混凝土和钢筋混凝土结构的生产中,合理用水是节约自然资源和保护环境的重要问题之一。生产1立方米钢筋混凝土结构,需要0.5～1立方米水(包括清洗骨料,混凝土拌和用水,蒸汽养护,冲洗设备等等)。大多数情况下,水是从城市供水系统取得的,从而引起不必要的浪费,并且减少了对居民饮用水的储备。在南方某些地区以及工业高度集中的地区,淡水的来源有限,个别情况下,甚至缺乏淡水,因此在制备混凝土时,需要合理的利用含有不同程度矿
In the construction site and construction industry enterprises, especially in the production of concrete and reinforced concrete structures, rational use of water is one of the important issues to save natural resources and protect the environment. The production of 1 cubic meter of reinforced concrete structure requires 0.5 to 1 cubic meter of water (including cleaning aggregates, concrete mixing water, steam curing, washing equipment, etc.). In most cases, water is obtained from the city’s water supply system, causing unnecessary waste and reducing the reserves of residents’ drinking water. In some areas in the southern part of the country and where industries are highly concentrated, the sources of fresh water are limited. In some cases, there is even a lack of fresh water. Therefore, in the preparation of concrete, it is necessary to rationally use different levels of ore.