英语词汇“vacuum concrete”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	vacuum concrete
释义	vacuum concrete vacuum concrete [′vak·yəm ′kän‚krēt] (civil engineering) Concrete poured into a framework that is fitted with a vacuum mat to remove water not required for setting of the cement; in this framework, concrete attains its 28-day strength in 10 days and has a 25% higher crushing strength. vacuum concrete Concrete from which water is extracted by a vacuum process before hardening occurs.
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