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A platform for research: civil engineering, architecture and urbanism
Self-curing type micro-expanding agent for concrete and using method
The invention relates to the technical field of cement concrete products, in particular to a self-curing type micro-expanding agent for concrete and a using method. The self-curing type micro-expanding agent for concrete is prepared from, by mass, 50%-80% of metakaolin, 5%-20% of Mg-Al-CO3 intercalation hydrotalcite, 10%-30% of bentonite, 2%-8% of CaSO4 and the balance tricalcium phosphate, wherein the total mass meets 100%, and the metakaolin and the Mg-Al-CO3 intercalation hydrotalcite are formed through calcinations at a certain temperature. In the using process, the self-curing type micro-expanding agent is mixed internally with the mixing amount of 4%-15% and replaces cement or other binding materials, after concrete is mixed and formed, the concrete can achieve the micro-expanding effect without moisture supplemented externally for curing, and related performance meets the requirement of GB 2349-2009 Concrete Expansive Materials.
Self-curing type micro-expanding agent for concrete and using method
The invention relates to the technical field of cement concrete products, in particular to a self-curing type micro-expanding agent for concrete and a using method. The self-curing type micro-expanding agent for concrete is prepared from, by mass, 50%-80% of metakaolin, 5%-20% of Mg-Al-CO3 intercalation hydrotalcite, 10%-30% of bentonite, 2%-8% of CaSO4 and the balance tricalcium phosphate, wherein the total mass meets 100%, and the metakaolin and the Mg-Al-CO3 intercalation hydrotalcite are formed through calcinations at a certain temperature. In the using process, the self-curing type micro-expanding agent is mixed internally with the mixing amount of 4%-15% and replaces cement or other binding materials, after concrete is mixed and formed, the concrete can achieve the micro-expanding effect without moisture supplemented externally for curing, and related performance meets the requirement of GB 2349-2009 Concrete Expansive Materials.
Self-curing type micro-expanding agent for concrete and using method
LENG ZHENG (author) / LI XI (author) / JIANG ZHEN (author) / XIANG JIAYU (author) / CHEN KAI (author) / TIAN QING (author)
2016-01-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME