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A platform for research: civil engineering, architecture and urbanism
High-water-resistance magnesium oxychloride cement and preparation method thereof
The invention relates to the technical field of inorganic cementing materials, in particular to high-water-resistance magnesium oxychloride cement and a preparation method thereof. The high-water-resistance magnesium oxychloride cement is prepared from the following raw materials: light calcined magnesia, magnesium chloride hexahydrate and a retarder. According to the invention, by adjusting the ratio of the light calcined magnesia to the magnesium chloride hexahydrate to the water, only one retarder is used for modifying the magnesium oxychloride cement, and acid radical ions in the retarder are coordinated with Mg < 2 + >, so that the stability of a hydration product in the water is enhanced, and the hydration product has better water resistance. Compared with other magnesium oxychloride cement water resistance modification modes, the magnesium oxychloride cement water resistance modification method is simpler, the production cost is lower, and the application range of the magnesium oxychloride cement can be expanded.
本发明涉及无机胶凝材料技术领域，具体涉及一种高耐水性氯氧镁水泥及其制备方法。本发明的高耐水性氯氧镁水泥的原料组成：轻烧氧化镁，六水氯化镁和缓凝剂。本发明通过调整轻烧氧化镁，六水氯化镁与水的比例，仅使用一种缓凝剂改性氯氧镁水泥，利用缓凝剂中的酸根离子与Mg2+配位，增强水化产物在水中的稳定性，使其拥有较好的耐水性。本发明相比其他氯氧镁水泥耐水性的改性方式更加简单，生产成本更低，有利于扩展氯氧镁水泥的应用范围。
High-water-resistance magnesium oxychloride cement and preparation method thereof
The invention relates to the technical field of inorganic cementing materials, in particular to high-water-resistance magnesium oxychloride cement and a preparation method thereof. The high-water-resistance magnesium oxychloride cement is prepared from the following raw materials: light calcined magnesia, magnesium chloride hexahydrate and a retarder. According to the invention, by adjusting the ratio of the light calcined magnesia to the magnesium chloride hexahydrate to the water, only one retarder is used for modifying the magnesium oxychloride cement, and acid radical ions in the retarder are coordinated with Mg < 2 + >, so that the stability of a hydration product in the water is enhanced, and the hydration product has better water resistance. Compared with other magnesium oxychloride cement water resistance modification modes, the magnesium oxychloride cement water resistance modification method is simpler, the production cost is lower, and the application range of the magnesium oxychloride cement can be expanded.
本发明涉及无机胶凝材料技术领域，具体涉及一种高耐水性氯氧镁水泥及其制备方法。本发明的高耐水性氯氧镁水泥的原料组成：轻烧氧化镁，六水氯化镁和缓凝剂。本发明通过调整轻烧氧化镁，六水氯化镁与水的比例，仅使用一种缓凝剂改性氯氧镁水泥，利用缓凝剂中的酸根离子与Mg2+配位，增强水化产物在水中的稳定性，使其拥有较好的耐水性。本发明相比其他氯氧镁水泥耐水性的改性方式更加简单，生产成本更低，有利于扩展氯氧镁水泥的应用范围。
High-water-resistance magnesium oxychloride cement and preparation method thereof
一种高耐水性氯氧镁水泥及其制备方法
LIAO YISHUN (author) / XU HAO (author) / DONG XINGZHI (author) / CHEN YINGXUE (author) / YU JINGSHUO (author) / CHEN MINGYANG (author) / CHEN PANTONG (author) / MA SHENGDONG (author) / WU YONG (author) / DU YONGHUI (author)
2023-07-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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