When the beam columns with different strength concrete are poured respectively, cracks in the connecting faces should be avoided.

梁柱不同强度等级混凝土分别浇捣进行施工时，要避免邻接面形成冷缝。

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Based on design criterion and construction practice, the paper presented the method to treat beam - column node concrete with different strength grade in course of design and construction.

在设计规范与工程实践的基础上，着重论述了梁柱节点不同混凝土强度等级在设计和施工中的处理方法。

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Various curing condition and different amount of water evaporated in early-age curing would lead to different strength of concrete.

早期养护条件不同，混凝土失水量不同，则混凝土中后期强度也不相同。

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