A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HIGH BELITE-BASED CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a high belite-based cement composition which can effectively shorten a setting time while satisfactorily keeping strength development of a short-term material age without using an additive such as a setting accelerator.SOLUTION: A high belite-based cement composition contains: (X) a cement clinker which contains 1.5-2.5 mass% of the following component (X) free lime, 23-31 mass% of CS, 54-62 mass% of CS, 1-3 mass% of CA, 8-13 mass% of CAF, 0.5-1.0 mass% of MgO and 0.10-0.31 mass% of SO, where the total amount of CA and CAF is 11-15 mass%; and (Y) gypsum having an amount of 1.2-4.0 mass% in terms of SO, where an amount of hemihydrate gypsum in the component (X) in terms of SOis 20-80 mass%.SELECTED DRAWING: None
【課題】凝結促進剤等の添加剤を用いることなく、短期材齢の強度発現性を良好に保持しながら、凝結時間の短縮化を有効に図ることのできる高ビーライト系セメント組成物を提供する。【解決手段】次の成分（Ｘ）フリーライムを１．５〜２．５質量％、Ｃ３Ｓを２３〜３１質量％、Ｃ２Ｓを５４〜６２質量％、Ｃ３Ａを１〜３質量％、Ｃ４ＡＦを８〜１３質量％、ＭｇＯを０．５〜１．０質量％、及びＳＯ３を０．１０〜０．３１質量％含み、かつＣ３ＡとＣ４ＡＦの合計量が１１〜１５質量％であるセメントクリンカ、並びに成分（Ｙ）ＳＯ３換算量が１．２〜４．０質量％である石膏を含有し、かつ成分（Ｘ）中における半水石膏のＳＯ３換算量が、２０〜８０質量％である高ビーライト系セメント組成物。【選択図】なし
HIGH BELITE-BASED CEMENT COMPOSITION
PROBLEM TO BE SOLVED: To provide a high belite-based cement composition which can effectively shorten a setting time while satisfactorily keeping strength development of a short-term material age without using an additive such as a setting accelerator.SOLUTION: A high belite-based cement composition contains: (X) a cement clinker which contains 1.5-2.5 mass% of the following component (X) free lime, 23-31 mass% of CS, 54-62 mass% of CS, 1-3 mass% of CA, 8-13 mass% of CAF, 0.5-1.0 mass% of MgO and 0.10-0.31 mass% of SO, where the total amount of CA and CAF is 11-15 mass%; and (Y) gypsum having an amount of 1.2-4.0 mass% in terms of SO, where an amount of hemihydrate gypsum in the component (X) in terms of SOis 20-80 mass%.SELECTED DRAWING: None
【課題】凝結促進剤等の添加剤を用いることなく、短期材齢の強度発現性を良好に保持しながら、凝結時間の短縮化を有効に図ることのできる高ビーライト系セメント組成物を提供する。【解決手段】次の成分（Ｘ）フリーライムを１．５〜２．５質量％、Ｃ３Ｓを２３〜３１質量％、Ｃ２Ｓを５４〜６２質量％、Ｃ３Ａを１〜３質量％、Ｃ４ＡＦを８〜１３質量％、ＭｇＯを０．５〜１．０質量％、及びＳＯ３を０．１０〜０．３１質量％含み、かつＣ３ＡとＣ４ＡＦの合計量が１１〜１５質量％であるセメントクリンカ、並びに成分（Ｙ）ＳＯ３換算量が１．２〜４．０質量％である石膏を含有し、かつ成分（Ｘ）中における半水石膏のＳＯ３換算量が、２０〜８０質量％である高ビーライト系セメント組成物。【選択図】なし
HIGH BELITE-BASED CEMENT COMPOSITION
高ビーライト系セメント組成物
ONO MAIKO (author) / KUROKAWA DAISUKE (author)
2018-02-01
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
| British Library Conference Proceedings | 1993
Belite cement clinker, preparation method thereof and Belite Portland cement
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Modified high belite cement and method for improving early strength of high belite cement
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Development of Modified Belite Cement
| British Library Conference Proceedings | 1993