Normal-temperature-maintenance alkali-activated cementing material with low alkali dissolution quantity and preparation method thereof
A technology of normal temperature curing and cementitious materials, applied in the direction of cement production, etc., can solve the problems of slag falling, unsuccessful plastering, impact, etc., and achieve the improvement of compressive strength and flexural strength, and the improvement of compressive strength and flexural strength Effect
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[0036] The present invention also proposes a method for preparing the aforementioned alkali-activated gelling material with low alkali dissolution rate maintained at normal temperature, which comprises the following steps: 1) weighing the powder raw material and water glass respectively; 2) taking the powder The raw materials are uniformly mixed to obtain a gelled powder; 3) the gelled powder and water glass are mixed with water to obtain a slurry of an alkali-activated gelled material; 4) the slurry is molded and maintained at room temperature.
[0037] Preferably, in the aforementioned method for preparing an alkali-activated gelling material with low alkali dissolution rate cured at room temperature, the water-cement ratio of the slurry is 0.5 in parts by mass.
[0038] The alkali-activated gelling material has a fast setting time and can be prepared immediately after use.
[0039] The alkali-activated gelling material can be cured at normal temperature to achieve the requi...
Embodiment 1-19
[0048] According to the formula shown in Table 1, the alkali-activated gelling material of the low alkali dissolution rate of normal temperature curing is prepared, and the steps are as follows: 1) weigh tailings, slag powder and water glass according to the above-mentioned formula table; The raw materials described above are mixed uniformly to obtain gelled powder; 3) the described gelled powder is mixed with water glass and water, and the quality of adding water is "(tailings quality+slag powder quality+aluminate cement quality+amorphous alumina quality)×0.5-the quality of water in water glass ", obtain the slurry of alkali-activated gelling material; Wherein, the quality of water in water glass is the quality of water in the aqueous solution of water glass, and its amount can be By the water glass dosage described in above-mentioned table 1 and obtain according to its solid content, modulus calculation; Wherein, modulus is that the water glass solution solid content of 1.8 i...
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