Prepn of retardant for magnesite binding material
A technology of cementitious material and retarder, applied in the field of magnesite cementitious material modifier, can solve the problems of short initial setting time of slurry, poor water resistance of products, and difficulty in ensuring the appearance quality of products.
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Embodiment 1
[0012] The percentage by weight that each raw material accounts for in the total weight is:
[0013] 30% water, 25% aluminum hydroxide, 15% tartaric acid, 30% phosphoric acid.
[0014] Add the above raw materials into the reaction kettle and stir for 45 minutes at normal temperature.
Embodiment 2
[0016] The percentage by weight that each raw material accounts for in the total weight is:
[0017] Water 25%, aluminum hydroxide 30%, tartaric acid 20%, phosphoric acid 25%.
[0018] Add the above raw materials into the reaction kettle and stir for 30 minutes at normal temperature.
Embodiment 3
[0020] The percentage by weight that each raw material accounts for in the total weight is:
[0021] Water 35%, aluminum hydroxide 20%, tartaric acid 10%, phosphoric acid 35%.
[0022] Add the above raw materials into the reaction kettle and stir for 60 minutes at normal temperature.
[0023] Among the above-mentioned embodiments, embodiment 2 is the best embodiment.
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