A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a blast furnace slag-highly containing cement composition capable of suppressing adiabatic temperature rise amount and excellent in strength development property while having a large amount of a blast furnace slag low in JIS basicity.SOLUTION: There is provided a cement composition containing a blast furnace slag of 60 to 90 mass% and having basicity Bu (7 days) calculated by a following formula (1) from a chemical component of the blast furnace slag of 0.99 to 1.50 or basicity Bu (28 days) calculated by a following formula (2) of 0.79 to 1.30, Bu (7 days)=(CaO+0.43×MgO+0.28×AlO)/SiO-0.46×TiO-0.27×MnO (1). Bu (28 days)=(CaO+0.42×MgO-0.16×AlO)/SiO-0.60×TiO-0.14×MnO (2) and SiOamount of 34.00 to 36.50%.SELECTED DRAWING: None
【課題】ＪＩＳ塩基度低い高炉スラグを多量に含有しながらも、断熱温度上昇量を抑え得、強度発現性に優れる高炉スラグ高含有セメント組成物の提供。【解決手段】高炉スラグを６０〜９０質量％含み、前記高炉スラグの化学成分から下記式（１）によって求められる塩基度Ｂu（７日）が０．９９〜１．５０であるか、または下記式（２）によって求められる塩基度Ｂu（２８日）が０．７９〜１．３０であり、Ｂu（７日）＝（ＣａＯ＋０．４３×ＭｇＯ＋０．２８×Ａｌ２Ｏ３）／ＳｉＯ２−０．４６×ＴｉＯ２−０．２７×ＭｎＯ・・・（１）、Ｂu（２８日）＝（ＣａＯ＋０．４２×ＭｇＯ−０．１６×Ａｌ２Ｏ３）／ＳｉＯ２−０．６０×ＴｉＯ２−０．１４×ＭｎＯ・・・（２）、ＳｉＯ２量が３４．００〜３６．５０％であるセメント組成物。【選択図】なし
CEMENT COMPOSITION AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a blast furnace slag-highly containing cement composition capable of suppressing adiabatic temperature rise amount and excellent in strength development property while having a large amount of a blast furnace slag low in JIS basicity.SOLUTION: There is provided a cement composition containing a blast furnace slag of 60 to 90 mass% and having basicity Bu (7 days) calculated by a following formula (1) from a chemical component of the blast furnace slag of 0.99 to 1.50 or basicity Bu (28 days) calculated by a following formula (2) of 0.79 to 1.30, Bu (7 days)=(CaO+0.43×MgO+0.28×AlO)/SiO-0.46×TiO-0.27×MnO (1). Bu (28 days)=(CaO+0.42×MgO-0.16×AlO)/SiO-0.60×TiO-0.14×MnO (2) and SiOamount of 34.00 to 36.50%.SELECTED DRAWING: None
【課題】ＪＩＳ塩基度低い高炉スラグを多量に含有しながらも、断熱温度上昇量を抑え得、強度発現性に優れる高炉スラグ高含有セメント組成物の提供。【解決手段】高炉スラグを６０〜９０質量％含み、前記高炉スラグの化学成分から下記式（１）によって求められる塩基度Ｂu（７日）が０．９９〜１．５０であるか、または下記式（２）によって求められる塩基度Ｂu（２８日）が０．７９〜１．３０であり、Ｂu（７日）＝（ＣａＯ＋０．４３×ＭｇＯ＋０．２８×Ａｌ２Ｏ３）／ＳｉＯ２−０．４６×ＴｉＯ２−０．２７×ＭｎＯ・・・（１）、Ｂu（２８日）＝（ＣａＯ＋０．４２×ＭｇＯ−０．１６×Ａｌ２Ｏ３）／ＳｉＯ２−０．６０×ＴｉＯ２−０．１４×ＭｎＯ・・・（２）、ＳｉＯ２量が３４．００〜３６．５０％であるセメント組成物。【選択図】なし
CEMENT COMPOSITION AND MANUFACTURING METHOD THEREFOR
セメント組成物およびその製造方法
MISUMI HIDETOSHI (author) / ITO TAKAYASU (author) / TAKAHASHI TOSHIYUKI (author)
2016-12-22
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME