Modified methyl cellulose flocculant for underwater grouting and its manufacturing method
A technology of methyl cellulose and underwater grouting, which is applied in the field of clean grout, concrete mixes, and underwater pouring mortar, and can solve the problem of slump loss and underwater grouting mixes whose anti-dispersion properties of underwater grouting mixes need to be improved. Insufficient anti-dispersion performance, large slump loss and other problems, to achieve excellent anti-dispersion performance, reduce water pollution, and low cost
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Specific embodiment 2
[0015] Manufacturing method of modified methyl cellulose flocculant for underwater grouting of the present invention-2. In the methylcellulose-acrylamide copolymer powder produced by the same manufacturing method as in Example 1, 1.5 parts by weight of sulfamate condensate powder and 0.1 parts by weight of 20% concentration were mixed with 1 part by weight. Polycarboxylic acid vulcanizing agent and 0.1 parts by weight of melamine-formaldehyde condensate are made into modified methyl cellulose flocculant-2.
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Specific embodiment 3
[0016] As a comparative example, a commercially available methyl cellulose flocculant was used.
Example Embodiment
[0017] The performance test of the underwater grouting mixture prepared by the modified methylcellulose flocculants 1 and 2 made by the specific embodiment 1 and the specific embodiment 2 and the methylcellulose flocculant of the specific embodiment 3 for comparison Listed in Table 1 and Table 2. Table 1 is the slump test of the underwater grouting mixture, and Table 2 is the compressive strength test of the underwater grouting mixture. The mixing ratio of the underwater grouting mixture by weight is as follows:
[0018] Cement: water: sand: stone: flocculant=1: 0.44: 1.5: 2.3: 0.03
[0019]
[0020]
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