Composite solid excitant and salic gelling material prepared by same
A technology of cementitious materials and activators, applied in cement production, etc., can solve construction and safety problems, and achieve the effects of convenient construction performance, less energy consumption, and good gelling performance
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[0015] The preparation method and steps of the composite solid activator of the present invention and the silica-alumina gelatinous material prepared therefrom are as follows:
[0016] (1) In terms of parts by mass, after weighing 4 to 8 parts by mass of at least one material selected from metasilicate and silicate and 2 to 6 parts by mass of alkaline sodium salt, mix well , to obtain a composite solid activator.
[0017] (2) In terms of parts by mass, first add 0.3-1.2 parts of the admixture to 20-30 parts of water, and stir until completely dissolved to obtain an aqueous solution of the admixture.
[0018] (3) In terms of parts by mass, weigh 60-70 parts of finely ground slag powder, 20-30 parts of finely ground fly ash and 5-10 parts of composite superfine powder and mix evenly, then add 8-12 parts The above composite solid activator, and fully stirred to ensure uniform mixing, to obtain a powder mixture.
[0019] (4) Add the prepared admixture aqueous solution into the p...
Embodiment 1-6
[0027] According to the following Table 1, in parts by mass, the admixture was first added to water, and stirred until it was completely dissolved to obtain an aqueous solution of the admixture. Then, weigh and mix the ground slag, ground fly ash, composite ultrafine powder and composite solid activator to obtain a uniform powder mixture, add the prepared additive aqueous solution into the powder mixture, and stir evenly to obtain gelling material.
[0028] According to the "Cement Standard Consistency Water Consumption, Setting Time, and Volume Stability Test Method" (GB / T1346-2001), the initial setting time and final setting time of the obtained cementitious material were measured, and the results are shown in Table 2 below.
[0029] Measure the flexural strength and compressive strength of the standard mortar specimen obtained by the cementitious material in 3 days (3d) and 28 days (28d) according to "Cement Mortar Strength Test Method" (GB / T17671-1999) The results of flex...
Embodiment 7
[0036] According to the method stipulated in "Common Concrete Mix Proportion Design Regulations" (JGJ55-2000), the silica-alumina cementitious material prepared according to Example 3 is used to prepare fluid concrete with medium and high strength grades, and its strength grade is equivalent to C40 ordinary cement concrete.
[0037] See Table 4 for the mix ratio of concrete prepared with the silica-alumina cementitious material.
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