Preparation method of inorganic anti-corrosive paint for steel bar
An anti-corrosion coating, inorganic technology, applied in the field of building materials, can solve the problems of poor grip, damage to the steel coating layer, high price, and achieve the effects of fast setting time, good pumpability and high early strength
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Embodiment 1
[0030] 33.10% of hydraulic gelling material, 2.04% of modifier, 1.82% of plasticizer, 2.11% of superfine nano powder, 7.09% of active mixed material, 38.64% of aggregate, and 15.20% of mixing water. After weighing the raw materials accurately according to the proportion, stir with a mixer, add mixing water while stirring, after stirring for 5-10 minutes, stop the machine for 1-3 minutes, continue stirring for 1-2 minutes, and pour the stirred inorganic anti-corrosion coating on the steel bar Put it into the corresponding mold and cure it for 24 hours. After removing the mold, measure the compressive strength of the steel bar inorganic anti-corrosion coating for 1 day.
[0031] After testing, the compressive strength of the inorganic anticorrosion coating for steel bars is 41.3MPa for 1 day, 96.4MPa for 28 days, and the electric flux is 364 coulombs. The 28-day bond strength between the inorganic anticorrosion coating for steel bars and concrete It is 1.4MPa.
Embodiment 2
[0033] 38.73% of hydraulic gelling material, 3.28% of modifier, 2.14% of plasticizer, 3.57% of superfine nano powder, 4.23% of active mixed material, 30.54% of aggregate, and 17.51% of mixing water. After weighing the raw materials accurately according to the proportion, stir with a mixer, add mixing water while stirring, after stirring for 5-10 minutes, stop the machine for 1-3 minutes, continue stirring for 1-2 minutes, and pour the stirred inorganic anti-corrosion coating on the steel bar Put it into the corresponding mold and cure it for 24 hours. After removing the mold, measure the compressive strength of the steel bar inorganic anti-corrosion coating for 1 day.
[0034] After testing, the 1-day compressive strength of the steel inorganic anti-corrosion coating is 64.7MPa, the 28-day compressive strength is 118.2MPa, and the electric flux is 232 coulombs. The 28-day bond strength between the steel bar inorganic anti-corrosion coating and concrete It is 1.8MPa.
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