A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a modified cement slurry for rapidly repairing concrete, comprising following components in weight ratio: 30-70% of cement, 15-55% of aggregates, 12-15% of fly ash, 2.5-7.5% of latex powder, 0.25-5.5% of early strength admixture, and 0.25-1% of antifoaming agent. The modified cement slurry also comprises an expanding agent by weight of 0-2.5% of total weight and a thickening agent by weight of 0-2.5% of total weight. The modified cement slurry for rapidly repairing concrete can quicken the initial set of the cement slurry, promote water reducing rate of mortar, reduce unit weight of the newly-stirred mortar, and obviously promote flexural compression ratio, binding intensity and chloride ion penetration resistance of slurry, and the durability of concrete after rapidly repairing.
The invention discloses a modified cement slurry for rapidly repairing concrete, comprising following components in weight ratio: 30-70% of cement, 15-55% of aggregates, 12-15% of fly ash, 2.5-7.5% of latex powder, 0.25-5.5% of early strength admixture, and 0.25-1% of antifoaming agent. The modified cement slurry also comprises an expanding agent by weight of 0-2.5% of total weight and a thickening agent by weight of 0-2.5% of total weight. The modified cement slurry for rapidly repairing concrete can quicken the initial set of the cement slurry, promote water reducing rate of mortar, reduce unit weight of the newly-stirred mortar, and obviously promote flexural compression ratio, binding intensity and chloride ion penetration resistance of slurry, and the durability of concrete after rapidly repairing.
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