A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An underwater self-compacting concrete for repairing canal lining panels
Abstract The invention discloses an underwater self-compacting concrete for repairing canal lining panels. The concrete is comprised of following components in parts by weight: 100 parts of cementing material, 40-46 parts of water, 150-182 parts of sand, 209-255 parts of stone, 0.7-1 part of water reducing agent, 0.003-0.005 part of air-entraining agent and 0.2-0.3 part of airentraining agent. The cementing material is comprised of the following components in parts by weight: 50-70 parts of cement, 20-40 parts of fly ash and 10-20 parts of silica fume. This invention discloses an underwater self-compacting concrete used for repairing canal lining panels. Specifically, the anti-dispersion property of the concrete mixture is enhanced with the addition of the polyacrylamide to itself. The addition of the appropriate amount of silica fume and coarse aggregate with a particle size of 5-10mm assists the viscosity enhancement of the concrete mixture. As a result, as the amount of flocculant used is reduced, the product is safer and more environmentally compatible. The addition of the appropriate amount of silica improves the early strength of the concrete. This underwater self-compacting concrete could be used for underwater casting by directly pouring from the water surface. Other advantages of the underwater self-compacting concrete include easily assessment of the raw materials and simple preparation processes.
An underwater self-compacting concrete for repairing canal lining panels
Abstract The invention discloses an underwater self-compacting concrete for repairing canal lining panels. The concrete is comprised of following components in parts by weight: 100 parts of cementing material, 40-46 parts of water, 150-182 parts of sand, 209-255 parts of stone, 0.7-1 part of water reducing agent, 0.003-0.005 part of air-entraining agent and 0.2-0.3 part of airentraining agent. The cementing material is comprised of the following components in parts by weight: 50-70 parts of cement, 20-40 parts of fly ash and 10-20 parts of silica fume. This invention discloses an underwater self-compacting concrete used for repairing canal lining panels. Specifically, the anti-dispersion property of the concrete mixture is enhanced with the addition of the polyacrylamide to itself. The addition of the appropriate amount of silica fume and coarse aggregate with a particle size of 5-10mm assists the viscosity enhancement of the concrete mixture. As a result, as the amount of flocculant used is reduced, the product is safer and more environmentally compatible. The addition of the appropriate amount of silica improves the early strength of the concrete. This underwater self-compacting concrete could be used for underwater casting by directly pouring from the water surface. Other advantages of the underwater self-compacting concrete include easily assessment of the raw materials and simple preparation processes.
An underwater self-compacting concrete for repairing canal lining panels
DONG YUN (author) / ZHANG YIQING (author) / LI JIAZHENG (author) / ZHOU SHIHUA (author)
2021-04-22
Patent
Electronic Resource
English
Underwater canal lining experiments
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Tunnel inner lining of bright self-compacting concrete
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Development of an Underwater Canal Lining Method
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