Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for reducing hydration heat release of magnesium oxychloride cement
The invention discloses a method for reducing hydration heat release of magnesium oxychloride cement. The method comprises the following steps: mixing ore-mixed magnesium oxide, magnesium chloride, water and a chemical admixture at the mass ratio of (1.2-2.8) to 1 to (2-3.2), so as to form the magnesium oxychloride cement, wherein the ore-mixed magnesium oxide comprises magnesium oxide and a mineral admixture, the mass ratio of the mineral admixture to the ore-mixed magnesium oxide is (1-6) to 20, and the mass ratio of the chemical admixture to the ore-mixed magnesium oxide is (1-3) to 100. According to the method, the chemical admixture and the mineral admixture are doped into a magnesium oxide-magnesium chloride-water ternary material system in the preparation process of the magnesium oxychloride cement, and thus the targets that the hydration heat release of the magnesium oxychloride cement is reduced, the induction period end time and the acceleration period end time are prolonged, meanwhile, the amount of the raw material-magnesium oxide is replaced with addition of the mineral admixture can be achieved; and the cost of the magnesium oxychloride cement can be reduced to a certain extent.
Method for reducing hydration heat release of magnesium oxychloride cement
The invention discloses a method for reducing hydration heat release of magnesium oxychloride cement. The method comprises the following steps: mixing ore-mixed magnesium oxide, magnesium chloride, water and a chemical admixture at the mass ratio of (1.2-2.8) to 1 to (2-3.2), so as to form the magnesium oxychloride cement, wherein the ore-mixed magnesium oxide comprises magnesium oxide and a mineral admixture, the mass ratio of the mineral admixture to the ore-mixed magnesium oxide is (1-6) to 20, and the mass ratio of the chemical admixture to the ore-mixed magnesium oxide is (1-3) to 100. According to the method, the chemical admixture and the mineral admixture are doped into a magnesium oxide-magnesium chloride-water ternary material system in the preparation process of the magnesium oxychloride cement, and thus the targets that the hydration heat release of the magnesium oxychloride cement is reduced, the induction period end time and the acceleration period end time are prolonged, meanwhile, the amount of the raw material-magnesium oxide is replaced with addition of the mineral admixture can be achieved; and the cost of the magnesium oxychloride cement can be reduced to a certain extent.
Method for reducing hydration heat release of magnesium oxychloride cement
WEN JING (Autor:in) / YU HONGFA (Autor:in) / XIAO XUEYING (Autor:in) / LI YING (Autor:in) / DONG JINMEI (Autor:in) / CHANG CHENGGONG (Autor:in) / ZHENG WEIXIN (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Method for reducing heat release during hydration of magnesium oxychloride cement
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