Assessing the suitability of sugar cane bagasse ash in inhibiting spalling in reinforced concrete
| dc.contributor.author | Kasulane Mark Alvin | |
| dc.date.accessioned | 2026-02-20T07:17:07Z | |
| dc.date.available | 2026-02-20T07:17:07Z | |
| dc.date.issued | 2025-12-09 | |
| dc.description | Undergraduate Research | |
| dc.description.abstract | Reinforced concrete is one of the most widely used construction materials due to its durability and strength, but it faces challenges when continuously penetrated by water, which corrodes the reinforcing concrete bars, leading to subsequent spalling, or the loss of concrete cover. The research examined the use of Sugarcane Bagasse Ash (SCBA), an agricultural waste product, as a partial replacement of cement to improve the durability of reinforced concrete with particular emphasis on the prevention of spalling caused by corrosion. Physical and chemical properties of SCBA were determined through laboratory tests, the influence on the characteristics of both fresh and hardened concrete was evaluated, and SCBA's effectiveness in chloride-induced accelerated corrosion tests was assessed. The effect of sugarcane bagasse ash (SCBA) at different percentages of cement replacement was investigated to find the optimum amount of the ash. In the case of the control mix, the duration of the first corrosion was about 2.5 hours, while for the 5% SCBA mix, the duration was 15.7 hours, thus indicating that the corrosion resistance had been substantially enhanced. The optimum dosage clearly showed its potential in slowing down the process of corrosion and thus preventing spalling in reinforced concrete structures. A 5% SCBA replacement proved to be most beneficial in providing the greatest improvements among others, such as lessened water absorption, better microstructural densification, and slower chloride penetration. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12311/3154 | |
| dc.language.iso | en | |
| dc.publisher | Uganda Christian University | |
| dc.title | Assessing the suitability of sugar cane bagasse ash in inhibiting spalling in reinforced concrete | |
| dc.type | Thesis |