A kind of zeolite-supported chloride ion curing agent and its preparation method and application
A chloride ion, supported technology, applied in the field of zeolite-supported chloride ion curing agent and its preparation, can solve the problems of low curing efficiency of free chloride ions, and achieve the effects of increasing content, prolonging service life and reducing corrosion
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Embodiment 1
[0038] A zeolite-supported chloride ion curing agent, prepared in parts by weight from 100-120 parts of dry zeolite, 160-200 parts of saturated barium acetate solution and 3-5 parts of triisopropanolamine solution . Among them, in terms of mass fraction, the chemical composition of zeolite includes 60-70% silica, 10-18% alumina; the bulk density of zeolite is not less than 1100kg / m 3 The fineness of the zeolite is less than 10% of the sieve residue of the 80 μm square hole sieve; the water demand ratio of the zeolite is not more than 125%; the concentration of the triisopropanolamine solution is 0.1-0.3g / mL.
[0039] The zeolite-loaded chloride ion curing agent of this embodiment uses barium acetate as the main active ingredient, which can be combined with the hydration products of sulfur-containing elements in cement monosulfide type calcium sulfoaluminate hydrate (AFm) and trisulfide type sulfur hydrate Calcium aluminate (AFt) reacts to form barium sulfate precipitate, ther...
Embodiment 2
[0052] A zeolite-loaded chloride ion curing agent, which is specifically prepared through the following steps:
[0053] 1) At normal temperature, by weight, 100 parts of dry zeolite is placed in a vacuum container for vacuum treatment for 20 minutes, wherein the absolute pressure of the vacuum container is reduced to 1-5KPa within 5 minutes, and then, 160 parts of saturated acetic acid is injected Barium solution, continue vacuum treatment for 10min, after the vacuum treatment is finished, let it stand at normal pressure for 30min to obtain the zeolite / barium acetate composite material solution;
[0054] 2) In an oven at 50°C, dry the zeolite / barium acetate composite material solution to evaporate the water to form a barium acetate supersaturated solution. At this time, continue to dry, and the barium acetate is crystallized and distributed inside the zeolite to obtain a zeolite / barium acetate composite material ;
[0055] 3) While stirring, use a sprayer to evenly spray 5 pa...
Embodiment 3
[0058] A zeolite-loaded chloride ion curing agent, which is specifically prepared through the following steps:
[0059] 1) At normal temperature, by weight, 120 parts of dry zeolite is placed in a vacuum container for vacuum treatment for 30 minutes, wherein the absolute pressure of the vacuum container is reduced to 1-5KPa within 5 minutes, and then, 200 parts of saturated acetic acid is injected Barium solution, continue to vacuum treatment for 15min, after the vacuum treatment is finished, let stand at normal pressure for 30min to obtain zeolite / barium acetate composite material solution;
[0060] 2) In an oven at 70°C, dry the zeolite / barium acetate composite material solution to evaporate the water to form a barium acetate supersaturated solution. At this time, continue to dry, and the barium acetate is crystallized and distributed inside the zeolite to obtain a zeolite / barium acetate composite material ;
[0061] 3) While stirring, use a sprayer to evenly spray 3 parts ...
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