Inorganic-organic composite grouting and water-stopping material as well as preparation method and application thereof
A composite grouting and water-stopping material technology is applied in the field of grouting and water-stopping materials in mining engineering to achieve the effects of good flexibility, good cohesion and high degree of polymerization
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[0038] The preparation method of the inorganic-organic composite grouting waterproofing material of the present invention comprises the following steps:
[0039] Step 1. Weigh the superabsorbent resin monomer, crosslinking agent and initiator, and mix them at a speed of 50-100 r / min to obtain a mixed powder;
[0040] Step 2. Mix sulfoaluminate cement and dry ice, pour it into the self-made sealed constant temperature mixer of the present invention, and add water into the sealed constant temperature mixer, open the constant temperature water bath to maintain the temperature at 20 ° C ~ 40 ° C, Stir at a stirring rate of 50-100r / min for 1-3min, then stir at a stirring rate of 100-200r / min for 1-3min to obtain a mixed slurry;
[0041] Step 3. Add the mixed powder in step 1 into the mixed slurry in step 2, and stir for 3-5 minutes at a stirring rate of 100-200 r / min to obtain an inorganic-organic composite grouting and water-stopping material. The material forms a double-network ...
Embodiment 1
[0049] This example provides an inorganic-organic composite grouting waterproof material and its preparation method, including the following steps:
[0050] Step 1. Weigh acrylamide monomer, N,N-methylenebisacrylamide and ammonium persulfate, and mix at 60r / min for 3min to obtain a mixed powder;
[0051] Acrylamide monomer, N,N-methylenebisacrylamide and ammonium persulfate are mixed using a powder mixer.
[0052] Step 2. Weigh sulfoaluminate cement and mix with dry ice, pour it into the pulping barrel 2 of the sealed constant temperature mixer, add water from the water injection nozzle 4 into the pulping barrel 2, and open the constant temperature water bath to maintain the temperature at 20°C, use the stirring shaft 6 to stir at a stirring rate of 60r / min for 1min, and then stir at a stirring rate of 120r / min for 2min to obtain a mixed slurry;
[0053] Step 3. Add the mixed powder in step 1 into the mixed slurry in step 2 through the feed port 5, stir for 3 minutes at a sti...
Embodiment 2
[0056] The steps of the operation method in this example are the same as those in Example 1, the difference is: in parts by weight, take 50 parts of sulphoaluminate cement, 20 parts of acrylamide monomer, 0.3 parts of N,N-methylenebisacrylamide parts, 0.5 parts of ammonium persulfate, 0.45 parts of dry ice, and 35 parts of water.
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