...used for large blocks of concrete such as dams and other structural materials in civil engineering and construction works. Blast furnace cement: a mixed cement made by mixing Portland cement with granulated blast furnace slag powder. Granulated blast furnace slag is a glassy material made by quenching molten slag with water, and is composed mainly of quicklime CaO, silica SiO 2 , and alumina Al 2 O 3. It does not harden on its own, but when mixed with hydrated lime, gypsum, Portland cement, etc., it becomes hydraulic (latent hydraulic). *Some of the terms that mention "blast furnace cement" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ダムなど大塊コンクリート,その他土木建築工事の構造材に使われる。高炉セメントblast furnace cementポルトランドセメントに高炉水砕スラグ粉末を混ぜた混合セメント。高炉水砕スラグは溶融スラグを水で急冷した生石灰CaO,シリカSiO2,アルミナAl2O3を主成分とするガラス質であり,そのままでは硬化しないが,これに消石灰,セッコウ,ポルトランドセメントなどを混合すると水硬性を発揮するようになる(潜在水硬性)。… ※「blast furnace cement」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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