Early strength durable hole sealing material based on hydration controlled-release aluminate cement and application method
A technology of aluminate cement and sealing material, which is applied in chemical instruments and methods, cement mixing devices, clay processing equipment, etc., can solve problems such as difficult matching of cement setting time, difficulty in actual construction, lagging of aluminum powder gas generation, etc. Achieve the effects of controllable setting time, delayed hydration time, and durable swelling duration
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Embodiment 1
[0018] (1) Preparation of a controlled-release hydrated aluminate cement-based early-strength and durable sealing material
[0019] ① Grind the gypsum, slag, limestone, selected resin and aluminate cement clinker to the 0.08mm square hole sieve to less than 10% and store them in a single warehouse, and store the Portland cement separately;
[0020] ② Mix the finely ground aluminate cement clinker with two or more resin polymer materials (phenolic resin, acrylic resin, latex powder, carboxymethyl cellulose, polyacrylamide, dextrin) in a total of 3.5% Mix and grind for 30 minutes to obtain coated aluminate cement;
[0021] ③ Mix 40% resin-coated aluminate cement with 35.7% Portland cement, 6% gypsum, 9% slag, 5% limestone, 3% bentonite, 0.3% industrial aluminum powder, and 1.0% naphthalene-based water reducer After 25 minutes, it was bagged and sealed to obtain a controlled-release hydrated aluminate cement-based early-strength and durable sealing material.
[0022] (2) Applic...
Embodiment 2
[0027] (1) Preparation of a controlled-release hydrated aluminate cement-based early-strength and durable sealing material
[0028] ① Mix the finely ground aluminate cement clinker with two or more resin polymer materials (phenolic resin, acrylic resin, latex powder, carboxymethyl cellulose, polyacrylamide, dextrin) in a total of 3.2% Mix and grind for 30 minutes to obtain coated aluminate cement;
[0029] ② Mix 45% resin-coated aluminate cement with 35% Portland cement, 7% gypsum, 5% slag, 4% limestone, 3% bentonite, 0.2% industrial aluminum powder, and 0.8% melamine water reducer for 25 minutes , bagged and sealed to prepare a controlled-release hydrated aluminate cement-based early-strength and durable sealing material.
[0030] (2) Application method of a controlled-release hydrated aluminate cement-based early-strength and durable sealing material
[0031] Mix the sealing material prepared above (1) with 55% water and stir evenly. Under standard conditions, the initial ...
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