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Preparation method of water reducer for concrete
A related preparation method of a water reducer for concrete comprises the following concrete steps: a, adding 70%-80% of sulfamic acid, salicylic acid, water and majority of potassium hydroxide into a reaction kettle, then adding melamine and formaldehyde, so as to generate a transparent solution; b, performing heating reaction at 80 DEG C for 2 h, and using the residual 20%-30% of sulfamic acid to adjust pH of the reaction solution to 5.5; and c, performing heating reaction at 85 DEG C for 2 h, cooling to 20 DEG C, using the residual potassium hydroxide to adjust pH to 9, so as to obtain the transparent water reducer with the solid content of 55%. The concrete water-reducer preparation method employing the above design is simple, and the prepared water reducer is good in effect when being applied to concrete.
Preparation method of water reducer for concrete
A related preparation method of a water reducer for concrete comprises the following concrete steps: a, adding 70%-80% of sulfamic acid, salicylic acid, water and majority of potassium hydroxide into a reaction kettle, then adding melamine and formaldehyde, so as to generate a transparent solution; b, performing heating reaction at 80 DEG C for 2 h, and using the residual 20%-30% of sulfamic acid to adjust pH of the reaction solution to 5.5; and c, performing heating reaction at 85 DEG C for 2 h, cooling to 20 DEG C, using the residual potassium hydroxide to adjust pH to 9, so as to obtain the transparent water reducer with the solid content of 55%. The concrete water-reducer preparation method employing the above design is simple, and the prepared water reducer is good in effect when being applied to concrete.
Preparation method of water reducer for concrete
LIU JINGLAN (author)
2015-04-08
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Efficient water reducer for concrete and preparation method for efficient water reducer for concrete
| European Patent Office | 2016