Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / LI XI (Autor:in) / JIANG ZHEN (Autor:in) / XIANG JIAYU (Autor:in) / CHEN KAI (Autor:in) / TIAN QING (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Anticracking type concrete containing expanding agent
| Europäisches Patentamt | 2015