External-wall door and window rapid waterproof repairing mortar and preparation method thereof
A technology for repairing mortar and doors and windows, applied in the field of building materials, can solve problems such as insufficient water resistance, and achieve the effects of improving bonding performance, high strength and high density
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Embodiment approach 1
[0037] The quick waterproof repair mortar for exterior walls, doors and windows of the present invention is prepared by mixing the following components by weight: 300 parts of ordinary portland cement, 100 parts of sulphoaluminate cement, 8 parts of calcium oxide, 200 parts of water, metakaolin 25 parts, 50 parts of heavy calcium carbonate, 250 parts of 40-mesh quartz sand, 100 parts of 60-mesh quartz sand, 2 parts of hydroxypropyl methylcellulose ether, 2 parts of wood fiber, 1 part of polycarboxylate water reducer, 10 parts of styrene-butadiene rubber powder, 5 parts of calcium formate, and 3 parts of citric acid.
[0038] The fast waterproof repair mortar for exterior walls, doors and windows prepared according to the scheme has no shrinkage, micro-expansion, no cracking, high density, high strength and anti-leakage.
Embodiment approach 2
[0040] The quick waterproof repair mortar for exterior walls, doors and windows of the present invention is prepared by mixing the following components by weight: 250 parts of ordinary portland cement, 150 parts of sulphoaluminate cement, 10 parts of calcium oxide, 180 parts of water, metakaolin 20 parts, 30 parts of heavy calcium carbonate, 300 parts of 40-mesh quartz sand, 100 parts of 60-mesh quartz sand, 1.5 parts of hydroxyethyl methyl cellulose ether, 1.5 parts of wood fiber, 0.5 parts of polycarboxylate water reducer, 15 parts of acrylic polymer powder, 3 parts of calcium formate, and 2 parts of tartaric acid.
[0041] The fast waterproof repair mortar for exterior walls, doors and windows prepared according to the scheme has no shrinkage, micro-expansion, no cracking, high density, high strength and anti-leakage.
Embodiment approach 3
[0043] The quick waterproof repair mortar for exterior walls, doors and windows of the present invention is prepared by mixing the following components by weight: 350 parts of ordinary Portland cement, 120 parts of sulphoaluminate cement, 7 parts of calcium oxide, 200 parts of water, metakaolin 30 parts, 30 parts of heavy calcium carbonate, 10 parts of light calcium carbonate, 200 parts of 40-mesh quartz sand, 100 parts of 60-mesh quartz sand, 2.5 parts of hydroxypropyl methylcellulose ether, 2.5 parts of wood fiber, polycarboxylic acid It is 1.5 parts of water reducing agent, 5 parts of vinyl acetate-ethylene copolymer rubber powder, 8 parts of calcium formate, and 5 parts of lactic acid.
[0044] The fast waterproof repair mortar for exterior walls, doors and windows prepared according to the scheme has no shrinkage, micro-expansion, no cracking, high density, high strength and anti-leakage.
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