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现行混凝土设汁、施工规范中,有许多这样的规定,即混凝土达到某一强度值,才能进行下一道工序的施工,例如:构件施加预应力,预制构件出厂、吊装等等。对于自然养护条件下施工的混凝土,要控制这一强
In the current concrete setting and construction specifications, there are many such provisions that the concrete can reach a certain strength value before it can be used for the construction of the next process, for example, prestressing of the components, shipment of prefabricated components, hoisting, etc. For concrete under natural conservation conditions, control this strong