BEHAVIOUR OF UNDERWATER SELF COMPACTING CONCRETE | ||
| JES. Journal of Engineering Sciences | ||
| Article 4, Volume 40, No 4, July and August 2012, Pages 1005-1023 PDF (1.17 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2012.114472 | ||
| Author | ||
| Ashraf M. Heniegal | ||
| Assistant prof., Civil Strut. Dept., Faculty of Industrial Education, Suez Canal University, Suez, Egypt | ||
| Abstract | ||
| Antiwashout underwater concrete AWA may be considered for use in a diverse range of work underwater, where its excellent characteristics are of great advantage. Underwater concrete Anti-washout admixture (SIKAMENT 100 SC) is water soluble organic polymers, which increase the cohesion of the concrete in a way, that significantly reduces the washout of the finer particles, i.e. the cementinious material (cement and silica fume) and sand from fresh concrete when it is placed underwater. Researches for underwater concrete are commonly studied but the common mixes of SCC are rarely investigated underwater. In this research, about 50 mixes of normal concrete NC and self compacting concrete SCC were prepared, in order to study the behaviour of under water SCC compared to NC using antiwashout admixtures (SEKAMENT 100 SC) Some parameters were studied such as AWA%, cement content, water cementitious ratio, coarse to fine aggregate ratio, and superplastisizer percent, in order to study the behavior of underwater SCC by measuring washout and out water/underwater minimum relative compressive strength to be added to the guidelines of underwater concrete applications. Optimum values of some AWA components have been clarified; including cement content, water cementitious ratio, sand to aggregate ratio, and superplastisizer percentage. | ||
| Keywords | ||
| Antiwashout; compressive strength; self compacting concrete; underwater; washout | ||
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