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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[0017] Example 1
[0018] (1) Preparation of a cement-based early-strength and durable sealing material with controlled release hydrated aluminate
[0019] ① Grind gypsum, slag, limestone, selected resin and aluminate cement clinker to a 0.08mm square-hole sieve to be less than 10%, and store them in separate warehouses, and store Portland cement separately;
[0020] ②Combine the ground aluminate cement clinker with two or more resin polymer materials (phenolic resin, acrylic resin, latex powder, carboxymethyl cellulose, polyacrylamide, dextrin) total 3.5% Mix and grind for 30 minutes to obtain coated aluminate cement;
[0021] ③Mix 40% resin-coated aluminate cement with 35.7% Portland cement, 6% gypsum, 9% slag, 5% limestone, 3% bentonite, 0.3% industrial aluminum powder, 1.0% naphthalene-based water reducing agent 25min, bagging and sealing, the controlled release hydrated aluminate cement-based early-strength and durable sealing material is prepared.
[0022] (2) An application met...
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[0026] Example 2
[0027] (1) Preparation of a cement-based early-strength and durable sealing material with controlled release hydrated aluminate
[0028] ① Combine the ground aluminate cement clinker with two or more resin polymer materials (phenolic resin, acrylic resin, latex powder, carboxymethyl cellulose, polyacrylamide, dextrin) total 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, 0.8% melamine water reducing agent for 25 minutes , Bagged and sealed, and prepared a controlled release hydrated aluminate cement-based early-strength and durable sealing material.
[0030] (2) An application method of a controlled release hydrated aluminate cement-based early-strength and durable sealing material
[0031] The sealing material prepared in (1) above is mixed with 55% water and stirred evenly. Under standard c...
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