...Used for emergency construction, construction during cold weather, secondary cement products, etc. Ultra high early strength Portland cement Also called jet cement. Cement with increased early strength by 68% more C 3 S than high early strength Portland cement, reduced 2CaO・SiO 2 (C 2 S) from 9% to 6%, finely pulverized to increase reactivity, and with a specific surface area about 1.8 times that of ordinary Portland cement. *Some terminology that mentions "jet cement" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…緊急工事,寒中工事,セメント二次製品などに利用される。超早強ポルトランドセメントultra high early strength cementジェットセメントjet cementともいう。早強ポルトランドセメントよりもC3Sを68%とさらに増し,2CaO・SiO2(C2S)を9%から6%と少なくし,そのうえ,反応性を高めるために微粉化し,比表面積を普通ポルトランドセメントの1.8倍程度として早強性を高めたセメント。… ※「jet 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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