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A platform for research: civil engineering, architecture and urbanism
Composite Portland cement and preparation method thereof
The invention relates to the field of cement materials, and particularly discloses composite Portland cement and a preparation method thereof. The composite Portland cement is prepared from the following raw materials in parts by weight: 50 to 70 parts of Portland cement, 3 to 8 parts of fly ash, 0.05 to 0.2 part of polycarboxylate superplasticizer, 10 to 20 parts of latex powder, 1 to 3 parts of light calcined magnesia, 3 to 5 parts of bentonite, 0.5 to 1 part of calcium formate, 0.2 to 0.5 part of sodium polyacrylate resin and 10 to 25 parts of water. According to the composite Portland cement, the expansion effect of the composite Portland cement is improved through the light calcined magnesia and the calcium formate, and the later volume shrinkage phenomenon of the Portland cement is reduced. Meanwhile, the ammonium polyacrylate resin is used for absorbing and locking moisture, so that the phenomenon that the Portland cement shrinks and cracks due to moisture volatilization in the later period is reduced.
本申请涉及水泥材料领域，具体公开了一种复合硅酸盐水泥及其制备方法。一种复合硅酸盐水泥，包括以下重量份的原料：硅酸盐水泥50‑70份，粉煤灰3‑8份，聚羧酸减水剂0.05‑0.2份，乳胶粉10‑20份，轻烧氧化镁1‑3份，膨润土3‑5份，甲酸钙0.5‑1份，聚丙烯酸钠树脂0.2‑0.5份，水10‑25份。本申请的一种复合硅酸盐水泥，通过轻烧氧化镁和甲酸钙提高复合硅酸盐水泥的膨胀效果，减少硅酸盐水泥后期体积收缩现象。同时通过聚丙烯酸铵树脂吸收、锁住水分，减少硅酸盐水泥后期因水分的挥发产生收缩干裂的现象。
Composite Portland cement and preparation method thereof
The invention relates to the field of cement materials, and particularly discloses composite Portland cement and a preparation method thereof. The composite Portland cement is prepared from the following raw materials in parts by weight: 50 to 70 parts of Portland cement, 3 to 8 parts of fly ash, 0.05 to 0.2 part of polycarboxylate superplasticizer, 10 to 20 parts of latex powder, 1 to 3 parts of light calcined magnesia, 3 to 5 parts of bentonite, 0.5 to 1 part of calcium formate, 0.2 to 0.5 part of sodium polyacrylate resin and 10 to 25 parts of water. According to the composite Portland cement, the expansion effect of the composite Portland cement is improved through the light calcined magnesia and the calcium formate, and the later volume shrinkage phenomenon of the Portland cement is reduced. Meanwhile, the ammonium polyacrylate resin is used for absorbing and locking moisture, so that the phenomenon that the Portland cement shrinks and cracks due to moisture volatilization in the later period is reduced.
本申请涉及水泥材料领域，具体公开了一种复合硅酸盐水泥及其制备方法。一种复合硅酸盐水泥，包括以下重量份的原料：硅酸盐水泥50‑70份，粉煤灰3‑8份，聚羧酸减水剂0.05‑0.2份，乳胶粉10‑20份，轻烧氧化镁1‑3份，膨润土3‑5份，甲酸钙0.5‑1份，聚丙烯酸钠树脂0.2‑0.5份，水10‑25份。本申请的一种复合硅酸盐水泥，通过轻烧氧化镁和甲酸钙提高复合硅酸盐水泥的膨胀效果，减少硅酸盐水泥后期体积收缩现象。同时通过聚丙烯酸铵树脂吸收、锁住水分，减少硅酸盐水泥后期因水分的挥发产生收缩干裂的现象。
Composite Portland cement and preparation method thereof
一种复合硅酸盐水泥及其制备方法
FANG LIMIN (author) / WANG XUEQUAN (author)
2024-04-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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