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Water-resistant magnesium oxysulfate cement and preparation method thereof
The invention discloses water-resistant magnesium oxysulfate cement and a preparation method thereof. The water-resistant magnesium oxysulfate cement is prepared from the following components in parts by mass: 34.8 to 52.2 parts of light calcined magnesia powder, 18.2 to 27.3 parts of magnesium sulfate heptahydrate, 20.0 to 29.9 parts of water, 4.7 to 7.1 parts of fly ash, 2.4 to 3.5 parts of mineral powder, 0.30 to 0.35 part of citric acid and 0.12 to 0.18 part of monocalcium phosphate. The formula of the magnesium oxysulfate cement in the prior art is improved, and the fly ash, the mineral powder, the citric acid and the monocalcium phosphate are added, so that the mechanical strength and the water resistance of the magnesium oxysulfate cement are effectively improved, and the softening coefficient of the prepared magnesium oxysulfate cement is 0.94-1.02.
本发明公开了一种耐水硫氧镁水泥及其制备方法，所述耐水硫氧镁水泥包括以下组分：34.8～52.2质量份轻烧氧化镁粉，18.2～27.3质量份七水硫酸镁，20.0～29.9质量份水，4.7～7.1质量份粉煤灰，2.4～3.5质量份矿粉，0.30‑0.35质量份柠檬酸，0.12‑0.18质量份磷酸二氢钙。本发明通过对现有技术中硫氧镁水泥的配方进行改进，在其中添加粉煤灰、矿粉、柠檬酸和磷酸二氢钙，有效提高硫氧镁水泥的力学强度和耐水性能，所制备的硫氧镁水泥的软化系数为0.94～1.02。
Water-resistant magnesium oxysulfate cement and preparation method thereof
The invention discloses water-resistant magnesium oxysulfate cement and a preparation method thereof. The water-resistant magnesium oxysulfate cement is prepared from the following components in parts by mass: 34.8 to 52.2 parts of light calcined magnesia powder, 18.2 to 27.3 parts of magnesium sulfate heptahydrate, 20.0 to 29.9 parts of water, 4.7 to 7.1 parts of fly ash, 2.4 to 3.5 parts of mineral powder, 0.30 to 0.35 part of citric acid and 0.12 to 0.18 part of monocalcium phosphate. The formula of the magnesium oxysulfate cement in the prior art is improved, and the fly ash, the mineral powder, the citric acid and the monocalcium phosphate are added, so that the mechanical strength and the water resistance of the magnesium oxysulfate cement are effectively improved, and the softening coefficient of the prepared magnesium oxysulfate cement is 0.94-1.02.
本发明公开了一种耐水硫氧镁水泥及其制备方法，所述耐水硫氧镁水泥包括以下组分：34.8～52.2质量份轻烧氧化镁粉，18.2～27.3质量份七水硫酸镁，20.0～29.9质量份水，4.7～7.1质量份粉煤灰，2.4～3.5质量份矿粉，0.30‑0.35质量份柠檬酸，0.12‑0.18质量份磷酸二氢钙。本发明通过对现有技术中硫氧镁水泥的配方进行改进，在其中添加粉煤灰、矿粉、柠檬酸和磷酸二氢钙，有效提高硫氧镁水泥的力学强度和耐水性能，所制备的硫氧镁水泥的软化系数为0.94～1.02。
Water-resistant magnesium oxysulfate cement and preparation method thereof
一种耐水硫氧镁水泥及其制备方法
GAO JIANMING (author) / LIU XI (author) / GUO ZHAOHENG (author) / CHEN GAOFENG (author) / LIU CHENG (author) / ZHAO YASONG (author) / LUO XU (author)
2024-06-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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