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Ultrahigh-toughness concrete and preparation method thereof
The invention discloses an ultrahigh-toughness concrete and a preparation method thereof. The ultrahigh-toughness concrete mainly comprises cement, silica fume, mineral slag, fly ash, quartz powder, quartz sand, steel fiber, nano calcium carbonate, water and a water reducing agent. The weight ratio of the silica fume to the cement is (10-20):100; the weight ratio of the mineral slag to the cement is (1-20):100; the weight ratio of the fly ash to the cement is (5-20):100; the weight ratio of the quartz powder to the cement is (30-38):100; the weight ratio of the quartz sand to the cement is (80-150):100; the steel fiber accounts for 2.0-4 vol% of the concrete; the weight ratio of the calcium carbonate to the cement is (0.1-5):100; the water-binder ratio is 0.16-0.22; and the weight ratio of the water reducing agent to the cement is (0.5-4):100. The concrete has the advantages of high strength, high toughness and favorable workability; the slump is greater than or equal to 180mm; and the concrete is pumpable and can be cast in place.
Ultrahigh-toughness concrete and preparation method thereof
The invention discloses an ultrahigh-toughness concrete and a preparation method thereof. The ultrahigh-toughness concrete mainly comprises cement, silica fume, mineral slag, fly ash, quartz powder, quartz sand, steel fiber, nano calcium carbonate, water and a water reducing agent. The weight ratio of the silica fume to the cement is (10-20):100; the weight ratio of the mineral slag to the cement is (1-20):100; the weight ratio of the fly ash to the cement is (5-20):100; the weight ratio of the quartz powder to the cement is (30-38):100; the weight ratio of the quartz sand to the cement is (80-150):100; the steel fiber accounts for 2.0-4 vol% of the concrete; the weight ratio of the calcium carbonate to the cement is (0.1-5):100; the water-binder ratio is 0.16-0.22; and the weight ratio of the water reducing agent to the cement is (0.5-4):100. The concrete has the advantages of high strength, high toughness and favorable workability; the slump is greater than or equal to 180mm; and the concrete is pumpable and can be cast in place.
Ultrahigh-toughness concrete and preparation method thereof
HUANG ZHENGYU (author) / SHAO XUDONG (author) / XIAO LIJING (author) / ZHOU ZHIMIN (author)
2015-04-29
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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