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Waterproof painting gypsum and preparation method of waterproof painting gypsum
The invention provides waterproof painting gypsum, which comprises the following ingredients including desulfurization gypsum, building sand, coal ash, retarders, cellulose ether, organic silicon water-proofing agents and bonding agents, wherein the fly ash has the particle features of glass micro balls; a good physical action effect is achieved on reducing the slurry water consumption, improving the system flowability and improving the system compactness degree. The retarders select one kind of materials from trimeric sodium phosphate, citric acids or sodium citrate; the fracture-resistant intensity and the pressure-resistant intensity of the gypsum can be improved; the cellulose ether selects methylcellulose or hydroxypropyl methylcellulose; the water retaining performance of the painting gypsum is improved; the thickness and the vertical-flow-resistant performance of the painting gypsum are improved. The waterproof painting gypsum provided by the invention has the advantages that the waterproof performance is good; the shearing bonding intensity and the fracture-resistant intensity are higher; the initial condensing time and the terminal condensing time are shorter.
Waterproof painting gypsum and preparation method of waterproof painting gypsum
The invention provides waterproof painting gypsum, which comprises the following ingredients including desulfurization gypsum, building sand, coal ash, retarders, cellulose ether, organic silicon water-proofing agents and bonding agents, wherein the fly ash has the particle features of glass micro balls; a good physical action effect is achieved on reducing the slurry water consumption, improving the system flowability and improving the system compactness degree. The retarders select one kind of materials from trimeric sodium phosphate, citric acids or sodium citrate; the fracture-resistant intensity and the pressure-resistant intensity of the gypsum can be improved; the cellulose ether selects methylcellulose or hydroxypropyl methylcellulose; the water retaining performance of the painting gypsum is improved; the thickness and the vertical-flow-resistant performance of the painting gypsum are improved. The waterproof painting gypsum provided by the invention has the advantages that the waterproof performance is good; the shearing bonding intensity and the fracture-resistant intensity are higher; the initial condensing time and the terminal condensing time are shorter.
Waterproof painting gypsum and preparation method of waterproof painting gypsum
YAO HAIMING (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Waterproof engineering waterproof coating painting construction method
| European Patent Office | 2020