Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ADMIXTURE FOR CEMENT, CEMENT COMPOSITION, AND HYDRAULIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement composition which can impart excellent flowability without degrading strength developability under high temperature circumstances, e.g. at 30°C or higher, and by which a proper working life is secured easily; and to provide an admixture for a cement, used for obtaining the same.SOLUTION: This invention relates to an admixture for cement, comprising CaO-SiO-AlO-based slag having a content ratio of an amorphous phase of 80 mass% or more. In the CaO-SiO-AlO-based slag, the total amount of CaO, SiO, and AlOas chemical compositions in the amorphous phase is 85 mass% or more; and a content molar ratio (CaO/SiO) of the CaO and SiOin the amorphous phase is 0.9-1.2.SELECTED DRAWING: None
【課題】 例えば３０℃以上の高温環境でも、強度発現性を減ずることなく、良好な流動性を付与でき、適度な可使時間を確保もしやすいセメント組成物及びこれを得るためのセメント用混和材の提供。【解決手段】 非晶質相の含有割合が８０質量％以上のＣａＯ−ＳｉＯ2−Ａｌ2Ｏ3系スラグであって、非晶質相中の化学成分としてのＣａＯとＳｉＯ2とＡｌ2Ｏ3の合計量が８５質量％以上かつ非晶質相中の前記ＣａＯとＳｉＯ2の含有モル比(ＣａＯ／ＳｉＯ2)が０．９〜１．２であるＣａＯ−ＳｉＯ2−Ａｌ2Ｏ3系スラグからなることを特徴とするセメント用混和材。【選択図】 なし
ADMIXTURE FOR CEMENT, CEMENT COMPOSITION, AND HYDRAULIC COMPOSITION
PROBLEM TO BE SOLVED: To provide a cement composition which can impart excellent flowability without degrading strength developability under high temperature circumstances, e.g. at 30°C or higher, and by which a proper working life is secured easily; and to provide an admixture for a cement, used for obtaining the same.SOLUTION: This invention relates to an admixture for cement, comprising CaO-SiO-AlO-based slag having a content ratio of an amorphous phase of 80 mass% or more. In the CaO-SiO-AlO-based slag, the total amount of CaO, SiO, and AlOas chemical compositions in the amorphous phase is 85 mass% or more; and a content molar ratio (CaO/SiO) of the CaO and SiOin the amorphous phase is 0.9-1.2.SELECTED DRAWING: None
【課題】 例えば３０℃以上の高温環境でも、強度発現性を減ずることなく、良好な流動性を付与でき、適度な可使時間を確保もしやすいセメント組成物及びこれを得るためのセメント用混和材の提供。【解決手段】 非晶質相の含有割合が８０質量％以上のＣａＯ−ＳｉＯ2−Ａｌ2Ｏ3系スラグであって、非晶質相中の化学成分としてのＣａＯとＳｉＯ2とＡｌ2Ｏ3の合計量が８５質量％以上かつ非晶質相中の前記ＣａＯとＳｉＯ2の含有モル比(ＣａＯ／ＳｉＯ2)が０．９〜１．２であるＣａＯ−ＳｉＯ2−Ａｌ2Ｏ3系スラグからなることを特徴とするセメント用混和材。【選択図】 なし
ADMIXTURE FOR CEMENT, CEMENT COMPOSITION, AND HYDRAULIC COMPOSITION
セメント用混和材並びにセメント組成物および水硬性組成物
NAKAJIMA YUTAKA (Autor:in) / YAMANAKA TOSHIYUKI (Autor:in)
08.11.2018
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME