Ryan He on Nostr: ...
傳統認知認為,羅馬人是將消石灰(熟石灰)與火山灰混合製成混凝土。但研究發現,他們很可能是直接將生石灰與火山灰在高溫下混合,這種「熱混合」工藝賦予混凝土驚人的自癒能力。[ 科學家終於曉得古羅馬混凝土為何能屹立千年 | 明日科學 ]
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