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Concrete sulfate-corrosion-resistant additive and preparation method thereof
The invention relates to a concrete sulfate-corrosion-resistant additive and a preparation method thereof, and belongs to the technical field of civil engineering materials. The concrete sulfate-corrosion-resistant additive mainly comprises, by mass, 30-50% of barium-based modified bentonite, 20-40% of nanometer kaolin/metakaolin, 20-30% of water talcum powder and 10-15% of solid water glass. The preparation method includes the steps of evenly mixing barium-based modified bentonite, nanometer kaolin/metakaolin, water talcum powder and solid water glass in proportion, placing the mixture in a grinding machine to be ground till the specific surface area of the ground powder reaches 400 m<2>/kg or above, and conducting bagging and sealing. By means of the concrete sulfate-corrosion-resistant additive and the preparation method, the sulfate corrosion resistance of concrete can be improved, the compressive strength of concrete can be improved, the concrete hole structure and compactness are improved, and the durability of concrete is improved. The prepared additive has the advantages of being long in timeliness, free of toxin and environment pollution, simple in preparation process and low in cost.
Concrete sulfate-corrosion-resistant additive and preparation method thereof
The invention relates to a concrete sulfate-corrosion-resistant additive and a preparation method thereof, and belongs to the technical field of civil engineering materials. The concrete sulfate-corrosion-resistant additive mainly comprises, by mass, 30-50% of barium-based modified bentonite, 20-40% of nanometer kaolin/metakaolin, 20-30% of water talcum powder and 10-15% of solid water glass. The preparation method includes the steps of evenly mixing barium-based modified bentonite, nanometer kaolin/metakaolin, water talcum powder and solid water glass in proportion, placing the mixture in a grinding machine to be ground till the specific surface area of the ground powder reaches 400 m<2>/kg or above, and conducting bagging and sealing. By means of the concrete sulfate-corrosion-resistant additive and the preparation method, the sulfate corrosion resistance of concrete can be improved, the compressive strength of concrete can be improved, the concrete hole structure and compactness are improved, and the durability of concrete is improved. The prepared additive has the advantages of being long in timeliness, free of toxin and environment pollution, simple in preparation process and low in cost.
Concrete sulfate-corrosion-resistant additive and preparation method thereof
JIANG LINHUA (author) / XIONG CHUANSHENG (author) / GUO QINGXIANG (author) / TAO DEBIAO (author) / JIANG PENG (author) / JIN MING (author) / GAO HAILANG (author)
2015-11-25
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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