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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Example Embodiment
[0012] Example 1
[0013] The caulking desulfurization gypsum of this embodiment includes the following components: adjusting agent 0.1%, fly ash 1%, water retention agent 0.3%, bonding agent 0.01%, reinforcing agent 0.1%, and the balance is construction desulfurization gypsum; The percentages are percentages by weight.
[0014] The preparation process is as follows:
[0015] Architectural desulfurization gypsum powder is metered into the mixer, and at the same time, fly ash and other additives whose particle size can pass through the 80-mesh standard sieve are metered into the mixer. After mixing, the product is packaged according to a certain weight.
[0016] The aforementioned regulator is a 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 in this embodiment reached 3.6 MPa, and its anti-...
Example Embodiment
[0018] Example 2
[0019] The caulking desulfurization gypsum of this embodiment includes the following components: adjusting agent 8%, fly ash 25%, water retaining agent 1%, bonding agent 0.2%, reinforcing agent 2%, and the balance is building desulfurization gypsum; The percentages are percentages by weight.
[0020] The preparation process is the same as in Example 1.
[0021] The aforementioned regulator is a 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 in this embodiment reached 4.0 MPa, and its anti-cracking performance was tested according to the test requirements of ASTM C475 / C475M-02. The caulking desulfurization gypsum putty of the present invention has no cracks.
Example Embodiment
[0023] Example 3
[0024] The caulking desulfurization gypsum of this embodiment includes the following components: adjusting agent 4%, fly ash 13%, water retention agent 0.7%, bonding agent 0.1%, reinforcing agent 1%, and the balance is construction desulfurization gypsum; The percentages are percentages by weight.
[0025] The preparation process is the same as in Example 1.
[0026] The aforementioned regulator is a 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 reached 3.8 MPa, and its anti-cracking performance was tested according to the test requirements of ASTM C475 / C475M-02. The caulking desulfurization gypsum of the present invention has no cracks.
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