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A platform for research: civil engineering, architecture and urbanism
High-ductility fiber-reinforced magnesium oxysulfate cement-based composite material and preparation method thereof
The invention relates to a high-ductility fiber-reinforced magnesium oxysulfate cement-based composite material and a preparation method thereof, and the high-ductility fiber-reinforced magnesium oxysulfate cement-based composite material comprises the following components in parts by weight: 70-75 parts of light magnesium oxide and 25-30 parts of magnesium sulfate. Citric acid accounting for 0.2-0.5% of the total weight of the materials, polyethylene fibers accounting for 0.8-1% of the total weight of the materials, a water repellent accounting for 0.05% of the total weight of the materials and water accounting for 0.25-0.35 time of the total weight of the materials. The light magnesium oxide and the magnesium sulfate are used as cementing material reactants, the polyethylene fiber is used as a reinforcing material, so that the mechanical property of the material is optimized, the crack width is controlled, the water resistance of the magnesium oxysulfate cement is improved in cooperation with the water repellent, and meanwhile, the brittle material of the magnesium oxysulfate cement is converted into an ultrahigh-ductility material.
本发明涉及一种高延性纤维增强硫氧镁水泥基复合材料及其制备方法，按重量份数，包括轻质氧化镁70‑75份，硫酸镁25‑30份；以及物料总重量0.2‑0.5％的柠檬酸、物料总重量0.8‑1％的聚乙烯纤维、物料总重量0.05％的憎水剂以及物料总重量0.25‑0.35倍的水。本发明以轻质氧化镁和硫酸镁作为胶凝材料反应物，聚乙烯纤维作为增强材料使得材料力学性能优化，并控制裂缝宽度，配合憎水剂提高硫氧镁水泥耐水性，同时将硫氧镁水泥脆性材料转变为超高延性材料。
High-ductility fiber-reinforced magnesium oxysulfate cement-based composite material and preparation method thereof
The invention relates to a high-ductility fiber-reinforced magnesium oxysulfate cement-based composite material and a preparation method thereof, and the high-ductility fiber-reinforced magnesium oxysulfate cement-based composite material comprises the following components in parts by weight: 70-75 parts of light magnesium oxide and 25-30 parts of magnesium sulfate. Citric acid accounting for 0.2-0.5% of the total weight of the materials, polyethylene fibers accounting for 0.8-1% of the total weight of the materials, a water repellent accounting for 0.05% of the total weight of the materials and water accounting for 0.25-0.35 time of the total weight of the materials. The light magnesium oxide and the magnesium sulfate are used as cementing material reactants, the polyethylene fiber is used as a reinforcing material, so that the mechanical property of the material is optimized, the crack width is controlled, the water resistance of the magnesium oxysulfate cement is improved in cooperation with the water repellent, and meanwhile, the brittle material of the magnesium oxysulfate cement is converted into an ultrahigh-ductility material.
本发明涉及一种高延性纤维增强硫氧镁水泥基复合材料及其制备方法，按重量份数，包括轻质氧化镁70‑75份，硫酸镁25‑30份；以及物料总重量0.2‑0.5％的柠檬酸、物料总重量0.8‑1％的聚乙烯纤维、物料总重量0.05％的憎水剂以及物料总重量0.25‑0.35倍的水。本发明以轻质氧化镁和硫酸镁作为胶凝材料反应物，聚乙烯纤维作为增强材料使得材料力学性能优化，并控制裂缝宽度，配合憎水剂提高硫氧镁水泥耐水性，同时将硫氧镁水泥脆性材料转变为超高延性材料。
High-ductility fiber-reinforced magnesium oxysulfate cement-based composite material and preparation method thereof
一种高延性纤维增强硫氧镁水泥基复合材料及其制备方法
CHEN HANYI (author) / WU MENG (author) / HAN JIAXING (author) / SHI QIDONG (author) / JIA YAPING (author) / LI LEI (author) / WANG LICHAO (author) / GAO GUOFENG (author)
2023-10-03
Patent
Electronic Resource
Chinese
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