The Performance of Self-curing Concrete Cast using Seawater | ||||
| ERJ. Engineering Research Journal | ||||
| Volume 46, Issue 2, April 2023, Page 249-259 PDF (613.04 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2023.178379.1235 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Alaa A. Bashandy   1; Enas A. Emam2
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| 1Civil Eng. Dep., Faculty of Engineering, Menoufia University, Menoufia, Egypt. | ||||
| 2Civil Eng. Dep., Menoufia Higher Institute for Engineering and Technology | ||||
| Abstract | ||||
| Construction engineering in coastal areas is facing the challenge of a shortage of fresh water for mixing and curing. The quality of water places an important role in the setting and strength development of concrete structures. This research aims to study the feasibility of using seawater to cast and curing plain concrete for non-structural uses. Samples were cast using tap water or seawater and then cured using tap water or seawater up to testing ages. Concrete properties were studied in terms of compressive, tensile, flexure, and bond strengths at 7, 28, and 56 days of age. Test results showed that the self-curing concrete with PEG performed better in hardened properties compared to conventional concrete. The compressive strength and subsequently the other related strengths of concrete were shown to increase for specimens mixed and cured in seawater at early ages up to 7 days, while a definite decrease in the respective strengths was observed for ages more than 28 days and up to 56 days. The reduction in strength increases with an increase in exposure time, which may be due to salt crystallization formation affecting the strength gain. | ||||
| Keywords | ||||
| Seawater, Self-curing Concrete; Polyethylene Glycol " PEG 400" Strength | ||||
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