Caulking desulphurization gypsum
A technology of desulfurized gypsum and regulator, applied in the field of caulking gypsum, can solve problems such as low strength and easy cracking, and achieve good anti-cracking performance
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Embodiment 1
[0013] The caulking desulfurization gypsum of this embodiment includes the following components: 0.1% regulator, 1% fly ash, 0.3% water retention agent, 0.01% adhesive, 0.1% reinforcing agent, and the balance is building desulfurization gypsum; wherein, the above Percentages are by weight.
[0014] The preparation process is as follows:
[0015] The building desulfurization gypsum powder is metered into the mixer, and at the same time, the fly ash and other admixtures with a particle size that can pass through the 80-mesh standard sieve are metered into the mixer. After mixing, they are packaged according to a certain weight.
[0016] The above-mentioned adjusting agent is sulfonate, the water retaining agent is methyl cellulose, sodium carboxymethyl cellulose or cellulose ether, the binder is rubber powder, and the retarder is citric acid.
[0017] After testing, the strength of the caulking desulfurization gypsum of this embodiment reaches 3.6 MPa, and its anti-cracking per...
Embodiment 2
[0019] The caulking desulfurization gypsum of this embodiment includes the following components: 8% regulator, 25% fly ash, 1% water retention agent, 0.2% adhesive, 2% reinforcing agent, and the balance is building desulfurization gypsum; wherein, the above Percentages are by weight.
[0020] The preparation process is the same as in Example 1.
[0021] The above-mentioned adjusting agent is sulfonate, the water retaining agent is methyl cellulose, sodium carboxymethyl cellulose or cellulose ether, the binder is rubber powder, and the retarder is citric acid.
[0022] After testing, the strength of the caulking desulfurization gypsum of this embodiment reaches 4.0 MPa, and its anti-cracking performance is tested according to the experimental requirements of ASTM C475 / C475M-02. The caulking desulfurization gypsum putty of the present invention has no cracks.
Embodiment 3
[0024] The caulking desulfurization gypsum of this embodiment includes the following components: 4% regulator, 13% fly ash, 0.7% water retaining agent, 0.1% adhesive, 1% reinforcing agent, and the balance is building desulfurization gypsum; wherein, the above Percentages are by weight.
[0025] The preparation process is the same as in Example 1.
[0026] The above-mentioned adjusting agent is sulfonate, the water retaining agent is methyl cellulose, sodium carboxymethyl cellulose or cellulose ether, the binder is rubber powder, and the retarder is citric acid.
[0027] After testing, the strength of the caulking desulfurization gypsum of this embodiment reaches 3.8 MPa, and its anti-cracking performance is tested according to the experimental requirements of ASTM C475 / C475M-02. The caulking desulfurization gypsum of the present invention has no cracks.
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Abstract
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