A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sustainable concrete solutions: Evaluating the structural performance of coconut shells as coarse aggregate substitute
https://orcid.org/0000-0003-4903-8504
https://orcid.org/0009-0006-4005-1701
AbstractThe increasing demand for concrete in urban development raises significant environmental concerns associated with the extraction of natural aggregates. This study addresses the need for sustainable alternatives by evaluating coconut shells as a substitute for coarse aggregates in concrete. The primary objectives were to assess the impact of varying percentages of coconut shells (5%, 10%, and 15%) on the workability and strength of concrete, as well as to investigate the effects of superplasticizers on these properties. A systematic approach was employed to prepare concrete mix proportions, incorporating coconut shells and superplasticizers. Concrete specimens were cast and subjected to strength tests after curing periods of 7, 14, and 28 days, in accordance with BS EN 12390‐3 standards. The principal results indicated that while the inclusion of coconut shells improved the sustainability of the concrete, it also led to a decrease in workability, particularly as the percentage of coconut shells increased. Additionally, the use of superplasticizers, although intended to enhance flow properties, resulted in diminished workability at higher coconut shell content. Compressive strength tests showed that up to 15% replacement of coarse aggregates with coconut shells did not significantly compromise strength. In conclusion, coconut shells can serve as a viable alternative to traditional aggregates, promoting sustainability in construction. However, careful consideration of superplasticizer use is essential to maintain optimal workability and strength in concrete mixes.
Sustainable concrete solutions: Evaluating the structural performance of coconut shells as coarse aggregate substitute
https://orcid.org/0000-0003-4903-8504
https://orcid.org/0009-0006-4005-1701
AbstractThe increasing demand for concrete in urban development raises significant environmental concerns associated with the extraction of natural aggregates. This study addresses the need for sustainable alternatives by evaluating coconut shells as a substitute for coarse aggregates in concrete. The primary objectives were to assess the impact of varying percentages of coconut shells (5%, 10%, and 15%) on the workability and strength of concrete, as well as to investigate the effects of superplasticizers on these properties. A systematic approach was employed to prepare concrete mix proportions, incorporating coconut shells and superplasticizers. Concrete specimens were cast and subjected to strength tests after curing periods of 7, 14, and 28 days, in accordance with BS EN 12390‐3 standards. The principal results indicated that while the inclusion of coconut shells improved the sustainability of the concrete, it also led to a decrease in workability, particularly as the percentage of coconut shells increased. Additionally, the use of superplasticizers, although intended to enhance flow properties, resulted in diminished workability at higher coconut shell content. Compressive strength tests showed that up to 15% replacement of coarse aggregates with coconut shells did not significantly compromise strength. In conclusion, coconut shells can serve as a viable alternative to traditional aggregates, promoting sustainability in construction. However, careful consideration of superplasticizer use is essential to maintain optimal workability and strength in concrete mixes.
Sustainable concrete solutions: Evaluating the structural performance of coconut shells as coarse aggregate substitute
https://orcid.org/0000-0003-4903-8504
https://orcid.org/0009-0006-4005-1701
AbstractThe increasing demand for concrete in urban development raises significant environmental concerns associated with the extraction of natural aggregates. This study addresses the need for sustainable alternatives by evaluating coconut shells as a substitute for coarse aggregates in concrete. The primary objectives were to assess the impact of varying percentages of coconut shells (5%, 10%, and 15%) on the workability and strength of concrete, as well as to investigate the effects of superplasticizers on these properties. A systematic approach was employed to prepare concrete mix proportions, incorporating coconut shells and superplasticizers. Concrete specimens were cast and subjected to strength tests after curing periods of 7, 14, and 28 days, in accordance with BS EN 12390‐3 standards. The principal results indicated that while the inclusion of coconut shells improved the sustainability of the concrete, it also led to a decrease in workability, particularly as the percentage of coconut shells increased. Additionally, the use of superplasticizers, although intended to enhance flow properties, resulted in diminished workability at higher coconut shell content. Compressive strength tests showed that up to 15% replacement of coarse aggregates with coconut shells did not significantly compromise strength. In conclusion, coconut shells can serve as a viable alternative to traditional aggregates, promoting sustainability in construction. However, careful consideration of superplasticizer use is essential to maintain optimal workability and strength in concrete mixes.
Sustainable concrete solutions: Evaluating the structural performance of coconut shells as coarse aggregate substitute
Structural Concrete
Boakye, Kingsley Asare (author) / Tarantsev, Dmitrii (author) / Ahmed, Mohammed (author) / Bainge, Gilbert (author)
2025-02-11
Article (Journal)
Electronic Resource
English
Replaceing Of Coarse Aggregate And Cement By Coconut Shells And Flyash In Concrete
| BASE | 2020
Performance of coconut shell as coarse aggregate in concrete
| British Library Online Contents | 2017
Performance of coconut shell as coarse aggregate in concrete
| British Library Online Contents | 2017
Performance of coconut shell as coarse aggregate in concrete
| Online Contents | 2017