A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for prolonging setting time of cement
The invention discloses a method for prolonging the setting time of cement. Phosphogypsum powder accounting for 8-12% of the total weight of clinker is added during grinding of cement in order to control the weight percentage of SO3. The method allows the content of SO3 in cement to be in a range of 1.6-2.4%, the initial setting time of cement to reach 330min or above, the final setting time to reach 420min or above, and has a good cement setting time prolongation effect; the content of SO3 in cement is normal, and poor stability of cement is avoided; and a material used in the invention is an industrial byproduct, so waste utilization is realized.
Method for prolonging setting time of cement
The invention discloses a method for prolonging the setting time of cement. Phosphogypsum powder accounting for 8-12% of the total weight of clinker is added during grinding of cement in order to control the weight percentage of SO3. The method allows the content of SO3 in cement to be in a range of 1.6-2.4%, the initial setting time of cement to reach 330min or above, the final setting time to reach 420min or above, and has a good cement setting time prolongation effect; the content of SO3 in cement is normal, and poor stability of cement is avoided; and a material used in the invention is an industrial byproduct, so waste utilization is realized.
Method for prolonging setting time of cement
YANG XIANGHE (author) / XU WEIFANG (author) / XU WEITING (author) / YUAN CHUANBIN (author) / SHAO WEI (author) / GAO YONGPING (author)
2015-06-24
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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