TY - JOUR
T1 - Eco-friendly and cost-effective self-compacting concrete using waste banana leaf ash
AU - Mim, Nusrat Jahan
AU - Meraz, Md Montaseer
AU - Islam, Md Hamidul
AU - Noroozinejad Farsangi, Ehsan
AU - Mehedi, Md Tanjid
AU - Arafin, Sk Abdul Kader
AU - Shrestha, Rajesh Kumar
PY - 2023/4/1
Y1 - 2023/4/1
N2 - The requirements of higher cement content and numerous admixtures in self-compacting concrete (SCC) yield a comparatively high production due to the high cement consumption that limits its use in everyday construction. As a result, it is prudent to consider alternatives for decreasing the environmental effects while producing a cost-effective SCC. Therefore, this study aims to investigate the fresh mechanical, durability, and microstructural characteristics as well as the environmental impacts of self-compacting concrete (SCC) incorporating waste banana leaf ash (BLA) to determine the optimum percentage of BLA. Concrete mixtures with 10%, 20%, and 30% OPC substitutions were investigated. Test findings revealed that all the fresh mixes performed within the EFNARC (2002) recommended limit. Despite the fact that increasing concentrations of BLA reduced the mechanical properties, concentrations of up to 20% BLA demonstrated strength comparable to the control mix. Furthermore, chloride ion penetration increased to 4%, with 20% BLA replacement falling into the moderate ion permeability zone. Finally, a relatively lower CO2-eq (maximum 29.13% reduction) per MPa indicates a significant positive impact due to the reduced Global Warming Potential (GWP).
AB - The requirements of higher cement content and numerous admixtures in self-compacting concrete (SCC) yield a comparatively high production due to the high cement consumption that limits its use in everyday construction. As a result, it is prudent to consider alternatives for decreasing the environmental effects while producing a cost-effective SCC. Therefore, this study aims to investigate the fresh mechanical, durability, and microstructural characteristics as well as the environmental impacts of self-compacting concrete (SCC) incorporating waste banana leaf ash (BLA) to determine the optimum percentage of BLA. Concrete mixtures with 10%, 20%, and 30% OPC substitutions were investigated. Test findings revealed that all the fresh mixes performed within the EFNARC (2002) recommended limit. Despite the fact that increasing concentrations of BLA reduced the mechanical properties, concentrations of up to 20% BLA demonstrated strength comparable to the control mix. Furthermore, chloride ion penetration increased to 4%, with 20% BLA replacement falling into the moderate ion permeability zone. Finally, a relatively lower CO2-eq (maximum 29.13% reduction) per MPa indicates a significant positive impact due to the reduced Global Warming Potential (GWP).
UR - https://hdl.handle.net/1959.7/uws:72933
U2 - 10.1016/j.jobe.2022.105581
DO - 10.1016/j.jobe.2022.105581
M3 - Article
SN - 2352-7102
VL - 64
JO - Journal of Building Engineering
JF - Journal of Building Engineering
M1 - 105581
ER -