“ordinary concrete structure”的概念、定义、翻译、参考文献-科学参考

单词	ordinary concrete structure
释义	ordinary concrete structure Encyclopedia 工学混凝土结构释 ordinary concrete structure普通混凝土结构以普通混凝土为主要材料建造的土木工程结构。普通混凝土（简称混凝土）是以水泥为胶结材料，以天然砂、石为骨料加水拌合，经过浇筑、凝结硬化形成的固体材料。为改善混凝土拌和物或硬化混凝土的性能，还可在其中加入各种外加剂和掺合料。其干表观密度为2000～2500千克/米3。普通混凝土结构在建筑工程中广泛使用。
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