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A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION AND METHOD FOR PRODUCING CEMENT COMPOSITION
To provide a cement composition having an appropriate strength development property and effectively suppressing heat of hydration.SOLUTION: A cement composition characterized in that the mineral composition by X-ray diffraction-Rietveld analysis has a CS content of 50 mass% to 65 mass%, a CS content of 10 mass% to 25 mass%, a CA content of 6 mass% to 11 mass%, and a CAF content of 9 mass% to 12 mass%, wherein the amount of KO solid-solved in CA is 0.3 mass% or less. Preferably, the specific surface area of Blaine is 3100-3500 cm/g, and it is preferable to include a step of mixing gypsum and a small amount of mixed components into the clinker obtained in the step of producing the cement clinker, and pulverizing the resulting mixture.SELECTED DRAWING: Figure 2
【課題】適正な強度発現性を有しつつ、効果的に水和熱が抑制されたセメント組成物の提供。【解決手段】Ｘ線回折−リートベルト解析法による鉱物組成が、Ｃ３Ｓ量が５０質量％〜６５質量％、Ｃ２Ｓ量が１０質量％〜２５質量％、Ｃ３Ａ量が６質量％〜１１質量％、Ｃ４ＡＦ量が９質量％〜１２質量％であって、Ｃ３Ａに固溶するＫ２Ｏ量が０．３質量％以下であることを特徴とするセメント組成物。好ましくは、ブレーン比表面積が３１００−３５００ｃｍ２／ｇであり、上記セメントクリンカーを製造する工程で得られたクリンカーに石膏および少量混合成分を混合して粉砕する工程を含むことが好ましい。【選択図】図２
CEMENT COMPOSITION AND METHOD FOR PRODUCING CEMENT COMPOSITION
To provide a cement composition having an appropriate strength development property and effectively suppressing heat of hydration.SOLUTION: A cement composition characterized in that the mineral composition by X-ray diffraction-Rietveld analysis has a CS content of 50 mass% to 65 mass%, a CS content of 10 mass% to 25 mass%, a CA content of 6 mass% to 11 mass%, and a CAF content of 9 mass% to 12 mass%, wherein the amount of KO solid-solved in CA is 0.3 mass% or less. Preferably, the specific surface area of Blaine is 3100-3500 cm/g, and it is preferable to include a step of mixing gypsum and a small amount of mixed components into the clinker obtained in the step of producing the cement clinker, and pulverizing the resulting mixture.SELECTED DRAWING: Figure 2
【課題】適正な強度発現性を有しつつ、効果的に水和熱が抑制されたセメント組成物の提供。【解決手段】Ｘ線回折−リートベルト解析法による鉱物組成が、Ｃ３Ｓ量が５０質量％〜６５質量％、Ｃ２Ｓ量が１０質量％〜２５質量％、Ｃ３Ａ量が６質量％〜１１質量％、Ｃ４ＡＦ量が９質量％〜１２質量％であって、Ｃ３Ａに固溶するＫ２Ｏ量が０．３質量％以下であることを特徴とするセメント組成物。好ましくは、ブレーン比表面積が３１００−３５００ｃｍ２／ｇであり、上記セメントクリンカーを製造する工程で得られたクリンカーに石膏および少量混合成分を混合して粉砕する工程を含むことが好ましい。【選択図】図２
CEMENT COMPOSITION AND METHOD FOR PRODUCING CEMENT COMPOSITION
セメント組成物及びセメント組成物の製造方法
HOSOKAWA YOSHIFUMI (author) / MIZOBUCHI HIROMI (author) / UCHIDA SHUNICHIRO (author)
2019-08-29
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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