Browsing by Author "Joel Bamwesigye"
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Item Investigating the Performance of Papyrus Ash in Reinforced Concrete to Reduce Defects Due to Carbonation(Uganda Christian University, 2024-05-27) Joel BamwesigyeThe study investigated the use of papyrus ash collected from Buziranjovu wetland in Mukono as a partial replacement for fine aggregates in concrete. Various physical and mechanical properties of concrete ingredients and papyrus ash were evaluated. Concrete cubes were casted with different percentages of papyrus ash replacements and tested at different curing ages. Results showed that increasing papyrus ash replacement led to higher compressive strength and reduced porosity and permeability. The optimum replacement was determined as 4%, meeting acceptable ranges for all properties, with a compressive strength of 28 MPa meeting design requirements. Further research should be conducted on how to improve the workability, strength properties of this concrete and higher concrete class such that these materials could be used broadly.