混凝土的自然养护，下列各项中符合相关规定的有（）。 -题库考试答案搜索网

混凝土的自然养护，下列各项中符合相关规定的有（）。

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2021-09-03 17:13

A、掺有缓凝型外加剂的混凝土，不得少于21d
B、在混凝土浇筑完毕后，应在8?12h以内加以覆盖和浇水
C、硅酸盐水泥拌制的混凝土，不得少于7d
D、矿渣硅酸盐水泥拌制的混凝土，不得少于7d

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正确答案

B@#@C@#@D

试题解析

标签：联大河南城建学院城乡规划（专升本）公共建筑设计原理

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