Method for preparing gypsum-based self-leveling material by using desulfurization gypsum
A desulfurized gypsum, gypsum-based technology, applied in the field of gypsum-based self-leveling materials and their preparation, can solve the problems of high cost, poor strength, etc., and achieve the effects of low cost, excellent performance, and cheap and easily available raw materials
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[0025] Example 1:
[0026] By weight, take 60 parts of gypsum powder prepared from desulfurized gypsum, 0.1 part of citric acid, 0.5 part of methyl cellulose ether, 3 parts of Portland cement, 0.3 part of polycarboxylate water reducer, 0.1 part of defoamer, 1 part of redispersible latex powder was put into the mixer, mixed for 20 minutes, the speed of the mixer was 60 rpm, and then mixed with 35 parts of sand, the mixing time was 10 minutes, and the stirring speed was 60 rpm to obtain the finished gypsum-based self-leveling 100 materials.
Example Embodiment
[0027] Embodiment 2:
[0028] By weight, take 60 parts of gypsum powder prepared from desulfurized gypsum, 0.1 part of sodium citrate, 0.5 part of hydroxypropyl methyl cellulose ether, 3 parts of Portland cement, 0.3 part of sulfonated melamine water reducer, 0.1 part of foaming agent and 1 part of redispersible latex powder were put into a mixer, mixed for 20 minutes, the speed of the mixer was 60 rpm, and then mixed with 35 parts of sand, the mixing time was 10 minutes, and the stirring speed was 60 rpm to obtain 100 parts of finished gypsum-based self-leveling material.
Example Embodiment
[0029] Embodiment three:
[0030] By weight, take 62.9 parts of gypsum powder prepared from desulfurized gypsum, 0.3 part of sodium polyphosphate, 0.5 part of hydroxypropyl methyl cellulose ether, 0.2 part of sulfonated melamine water reducer, 0.1 part of defoamer, and recyclable 1 part of disperse latex powder and 5 parts of talc powder were put into a mixer, mixed for 20 minutes, the speed of the mixer was 60 rpm, and then mixed with 30 parts of sand, the mixing time was 10 minutes, and the stirring speed was 60 rpm to obtain the finished gypsum. Based on 100 parts of self-leveling materials.
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