Crack-resistant ultra-high performance concrete for underground engineering in water-rich strata, preparation method, and application thereof

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United States of America

PATENT NO 12252444
SERIAL NO

18944099

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The present invention discloses a crack-resistant ultra-high performance concrete (UHPC) for underground engineering in water-rich strata, preparation method, and application thereof, belonging to the technical field of building materials. The concrete is prepared from the following raw materials in parts by weight: 550-650 parts of cement, 140-180 parts of fly ash, 120-150 parts of silica fume, 200-300 parts of calcined shield tunnel slag, 30-50 parts of micron-scale magnesium oxide, 30-50 parts of nano-scale magnesium oxide, 30-50 parts of rheology-modifying material, 800-1000 parts of lightweight aggregate, 4-8 parts of water reducer, and 50-200 parts of water. The rheology-modifying material has a fluidity ratio of 106%. The present invention incorporates calcined shield tunnel slag, micron/nano-scale magnesium oxide, and lightweight aggregate into the UHPC, which effectively suppresses shrinkage and reduces crack formation.

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Patent Owner(s)

Patent OwnerAddress
SHANDONG UNIVERSITY250000 NO 17923 NO TEN ROAD LIXIA DISTRICT JI'NAN SHANDONG JINAN CITY SHANDONG PROVINCE 250000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cui, Yupeng Jinan, CN 8 446
Li, Jinglong Jinan, CN 1 0
Meng, Xiangyu Jinan, CN 12 9
Pang, Kai Jinan, CN 14 174
Su, Tongchun Jinan, CN 1 0
Tang, Min Jinan, CN 41 257
Yan, Chenxu Jinan, CN 2 0
Zhang, Fengling Jinan, CN 3 1
Zhang, Jinghang Jinan, CN 1 0
Zheng, Xiufang Jinan, CN 32 46

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