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在混凝土预制构件生产中,为达到要求的脱模或预应力放张强度所必需的养护时间,占整个生产周期的比重最大,通常在10～18个小时。因此,如何缩短构件养护时间,提高整个预制厂的生产效率,就成了国内预制厂和各有关科研单位普遍重视的问题。近几年,国内不少生产单位和科研部门围绕养护工艺做了大量的改进工作,不仅被预制厂广泛采用的湿热养护工艺有了较大的
In the production of prefabricated concrete components, the maintenance time necessary to achieve the required demolding or prestressing strength is the largest, which is usually 10 to 18 hours. Therefore, how to shorten the maintenance time of components and improve the production efficiency of the entire prefabricated plant has become a problem that has been generally considered by domestic prefabricated plants and related scientific research units. In recent years, many domestic production units and scientific research departments have done a lot of improvement work around the conservation process, and not only have the moisture and heat conservation processes widely used by prefabrication factories