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Baking-free brick based on desulfurized gypsum and construction waste, and preparation method thereof
The invention relates to the technical field of building materials, and discloses a baking-free brick based on desulfurized gypsum and construction waste. The baking-free brick comprises, by weight, 70-90 parts of dehydrated desulfurized gypsum, 5-25 parts of construction waste, 2-5 parts of modified basalt fiber, 0.1-0.5 part of an organosilicon waterproof agent, and 15-25 parts of water. The invention further discloses a preparation method of the baking-free brick. The preparation method comprises the following steps: S1, weighing the above materials in proportion; S2, uniformly mixing the dehydrated desulfurized gypsum, the construction waste, the modified basalt fiber and the organosilicon waterproof agent to obtain a mixed dry material; S3, uniformly mixing the mixed dry material with water to obtain mixed slurry; S4, carrying out compression molding on the mixed slurry to obtain a green body; and S5, carrying out maintenance treatment on the green body to obtain the product. The baking-free brick disclosed by the invention does not need to be additionally added with cement, can consume a large amount of desulfurized gypsum and construction waste, is high in strength, and has good crack resistance and water resistance; in addition, the baking-free brick is simple in preparation process, low in cost and suitable for industrial production.
本发明涉及建筑材料技术领域,公开了一种基于脱硫石膏和建筑垃圾的免烧砖,按重量份计,所述免烧砖的原料包括脱水脱硫石膏70~90份、建筑垃圾5~25份、改性玄武岩纤维2~5份、有机硅防水剂0.1~0.5份和水15~25份;本发明还公开了该免烧砖的制备方法,包括以下步骤:S1.按配比称取上述材料;S2.将脱水脱硫石膏、建筑垃圾、改性玄武岩纤维与有机硅防水剂混合均匀,得到混合干料;S3.将所述混合干料与水混合均匀,得到混合浆料;S4.将所述混合浆料压制成型,得到坯体;S5.所述坯体经养护处理,即得;本发明的免烧砖无需额外添加水泥,能够大量消纳脱硫石膏和建筑垃圾,强度高,具有良好的抗裂性能和耐水性能;此外,该免烧砖的制备工艺简单、成本低,适合工业生产。
Baking-free brick based on desulfurized gypsum and construction waste, and preparation method thereof
The invention relates to the technical field of building materials, and discloses a baking-free brick based on desulfurized gypsum and construction waste. The baking-free brick comprises, by weight, 70-90 parts of dehydrated desulfurized gypsum, 5-25 parts of construction waste, 2-5 parts of modified basalt fiber, 0.1-0.5 part of an organosilicon waterproof agent, and 15-25 parts of water. The invention further discloses a preparation method of the baking-free brick. The preparation method comprises the following steps: S1, weighing the above materials in proportion; S2, uniformly mixing the dehydrated desulfurized gypsum, the construction waste, the modified basalt fiber and the organosilicon waterproof agent to obtain a mixed dry material; S3, uniformly mixing the mixed dry material with water to obtain mixed slurry; S4, carrying out compression molding on the mixed slurry to obtain a green body; and S5, carrying out maintenance treatment on the green body to obtain the product. The baking-free brick disclosed by the invention does not need to be additionally added with cement, can consume a large amount of desulfurized gypsum and construction waste, is high in strength, and has good crack resistance and water resistance; in addition, the baking-free brick is simple in preparation process, low in cost and suitable for industrial production.
本发明涉及建筑材料技术领域,公开了一种基于脱硫石膏和建筑垃圾的免烧砖,按重量份计,所述免烧砖的原料包括脱水脱硫石膏70~90份、建筑垃圾5~25份、改性玄武岩纤维2~5份、有机硅防水剂0.1~0.5份和水15~25份;本发明还公开了该免烧砖的制备方法,包括以下步骤:S1.按配比称取上述材料;S2.将脱水脱硫石膏、建筑垃圾、改性玄武岩纤维与有机硅防水剂混合均匀,得到混合干料;S3.将所述混合干料与水混合均匀,得到混合浆料;S4.将所述混合浆料压制成型,得到坯体;S5.所述坯体经养护处理,即得;本发明的免烧砖无需额外添加水泥,能够大量消纳脱硫石膏和建筑垃圾,强度高,具有良好的抗裂性能和耐水性能;此外,该免烧砖的制备工艺简单、成本低,适合工业生产。
Baking-free brick based on desulfurized gypsum and construction waste, and preparation method thereof
基于脱硫石膏和建筑垃圾的免烧砖及其制备方法
YU DONGXUE (author)
2021-07-06
Patent
Electronic Resource
Chinese
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