Alkali-free accelerating agent and preparation method and application thereof
A technology of quick-setting agent and formula, which is applied in the field of civil engineering and construction materials, can solve the problems of large quantities and storage stability that need to be further improved, and achieve the effects of reducing rebound, fast setting rate, and increasing cohesive force
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[0068] Example 1
[0069] The present embodiment provides an alkali-free setting accelerator, which comprises the following components according to parts by weight:
[0070]
[0071] The preparation method of described alkali-free setting accelerator is as follows:
[0072] (1) dissolve aluminum sulfate, organic amine, catalyst A of formula amount in water at 80 ℃, stir 100min with 70rpm speed, obtain alkali-free quick-setting agent stock solution;
[0073] (2) adding the catalyst B of the formula amount to the stock solution of the alkali-free accelerator, stirring for 20min, adding the synergist of the formula amount, stirring for 20min, adding the stabilizer of the formula amount, stirring for 15min, to obtain the alkali-free Accelerator.
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[0074] Example 2
[0075] The difference from Example 1 is that the aluminum dihydrogen phosphate is 6 parts by weight and the citric acid is 3 parts by weight.
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[0076] Example 3
[0077] The difference from Example 1 is that the aluminum dihydrogen phosphate is 8 parts by weight and the citric acid is 1 part by weight.
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