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紅毛泥,又叫水泥、士敏土(英文:cement)、英泥,係一種用喺土木工程嘅膠結性材料,係世界上最重要嘅建築材料。早喺羅馬帝國嗰時,羅馬人已經用水泥,而家用嘅紅毛泥就喺1824年誕生。紅毛泥分水硬性同非水硬性兩種。
「紅毛」就係西人咁解,因為水泥係西方人發明、帶嚟中國嘅,而啲西人「多數」都係「紅鬚綠眼」嘅,名就係咁嚟嘅。「英」即係英國,呢個名嘅來源與上者類似。
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