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()是由粗骨料表面包覆一层水泥浆相互粘结而成孔穴均匀分布的蜂窝式结构。

单选题
2021-09-01 19:58
A、透水混凝土
B、大体积混凝土
C、高性能混凝土
D、高强度混凝土
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正确答案
A

试题解析

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混凝土是以胶凝材料、细骨料、粗骨料和水,按适当比例配合,经均匀拌制、密实成型及 养护硬化而成的人造石材。  ( )
()是由粗骨料表面包覆一层水泥浆相互粘结而成孔穴均匀分布的蜂窝式结构。
混凝土强度主要取决于水泥石强度及其与骨料表面的粘结强度。
采用多次投料的混凝土搅拌工艺,配制出造壳混凝土。所谓造壳,就是在粗、细骨料表面裹上一层()的水泥薄壳,以提高水泥石与骨料之间界面粘结强度。
水泥混凝土的组成材料主要有水泥、细骨料、粗骨料、水,必要时可掺入掺和料、添加外加剂。
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翻译:With Average or With Particular Average(WA or WPA)()
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铁路混凝土粗骨料应采用二级配或多级配混合而成,粗骨料应()。
粗骨料应采用二级或多级级配骨料混配而成,粗骨料应分级采购、分级运输、()、分级计量。
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