Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement grouting material
The invention provides a cement grouting material with self-compaction and high fluidity. The cement grouting material comprises anti-cracking mortar, flow promoting components, a plasticizer, coagulation delaying components and a coagulation accelerating component. The anti-cracking mortar comprises, by mass, 4-8% of Portland cement, 38-47% of sulfate aluminum cement, 42-52% of quartz sand, 4.6-4.9% of swelling agents and 0.1-0.4% of polypropylene fibers. The flow promoting components include water reducing agents and defoaming agents. The plasticizer is cellulose ether. The coagulation delaying components include one or more of tartaric acid, sodium gluconate and citric acid. The coagulation accelerating component contains calcium hydroxide. The cement grouting material can complete grouting on the condition of self-gravity and can be grouted successfully one time during high-altitude operation of a support and an inhaul cable pipeline of a bridge with no need for vibrating or secondary grouting; construction of the material is simple since it is only required to add water; the grouting material can be used in construction at a low temperature.
Cement grouting material
The invention provides a cement grouting material with self-compaction and high fluidity. The cement grouting material comprises anti-cracking mortar, flow promoting components, a plasticizer, coagulation delaying components and a coagulation accelerating component. The anti-cracking mortar comprises, by mass, 4-8% of Portland cement, 38-47% of sulfate aluminum cement, 42-52% of quartz sand, 4.6-4.9% of swelling agents and 0.1-0.4% of polypropylene fibers. The flow promoting components include water reducing agents and defoaming agents. The plasticizer is cellulose ether. The coagulation delaying components include one or more of tartaric acid, sodium gluconate and citric acid. The coagulation accelerating component contains calcium hydroxide. The cement grouting material can complete grouting on the condition of self-gravity and can be grouted successfully one time during high-altitude operation of a support and an inhaul cable pipeline of a bridge with no need for vibrating or secondary grouting; construction of the material is simple since it is only required to add water; the grouting material can be used in construction at a low temperature.
Cement grouting material
LIANG XIAODONG (Autor:in) / LONG JILIN (Autor:in) / LI JUN (Autor:in) / CHEN ZHIPENG (Autor:in) / LIU MIAOQUN (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Development of grouting material for cement powder grouting
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