...The heat of hydration is regulated to be 70 cal/g or less in 7 days and 83 cal/g or less in 28 days. Furthermore, cement with a heat of hydration of 60 cal/g or less in 7 days and 70 cal/g or less in 28 days is called low heat Portland cement. It has low initial strength but normal long-term strength. *Some terminology that mentions "low heat cement" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…水和熱量は7日で70cal/g以下,28日で83cal/g以下と規定されている。さらに水和熱量を7日で60cal/g以下,28日で70cal/g以下と規定したものを低熱ポルトランドセメントlow heat cementと呼ぶ。初期強度は低いが長期強度は普通。… ※「low heat 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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