Main Article Content
Abstract
The manufacturing of intensive cement requires a lot of energy, which leads to large greenhouse gas (GHG) emissions, and the conventional concrete (CC) is notorious for having a big environmental impact. This study offers a thorough analysis of the literature on the life cycle and environmental impact evaluation of geopolymer mortar materials, investigating them as a low-carbon substitute for conventional concrete. Concrete types covered by the analysis include self-healing geopolymer concrete (SHGPC), conventional concrete (CC), and geopolymer concrete (GC). The findings indicate that GC offers substantial environmental benefits over CC, particularly in terms of climate change mitigation and fossil depletion, due to the use of fly ash and silica fume. However, the chemical activators in GC, such as NaOH and Na2SiO3, have significant negative impacts on human health and freshwater ecosystems. Additionally, while SHGPC reduces global warming potential, it increases fossil fuel consumption and ozone depletion due to sodium silicate production and self-healing microcapsule synthesis. Transportation of raw materials like fly ash and silica fume also plays a crucial role in the overall environmental impact but can be minimized by sourcing locally. This review highlights the need for further research and development in optimizing geopolymer production processes, utilizing local materials, and enhancing self-healing technologies to promote sustainable construction practices.
Keywords
Article Details
References
- Abeydeera, L. H. U. W., Mesthrige, J. W., & Samarasinghalage, T. I. (2019). Global research on carbon emissions: A scientometric review. In Sustainability (Switzerland) (Vol. 11, Issue 14). MDPI. https://doi.org/10.3390/su11143972
- Bajpai, R., Choudhary, K., Srivastava, A., Sangwan, K. S., & Singh, M. (2020). Environmental impact assessment of fly ash and silica fume based geopolymer concrete. Journal of Cleaner Production, 254. https://doi.org/10.1016/j.jclepro.2020.120147
- Garces, J. I. T., Dollente, I. J., Beltran, A. B., Tan, R. R., & Promentilla, M. A. B. (2021). Life cycle assessment of self-healing geopolymer concrete. Cleaner Engineering and Technology, 4. https://doi.org/10.1016/j.clet.2021.100147
- Habert, G., D’Espinose De Lacaillerie, J. B., & Roussel, N. (2011). An environmental evaluation of geopolymer based concrete production: Reviewing current research trends. Journal of Cleaner Production, 19(11), 1229–1238. https://doi.org/10.1016/j.jclepro.2011.03.012
- Imtiaz, L., Kashif-Ur-rehman, S., Alaloul, W. S., Nazir, K., Javed, M. F., Aslam, F., & Musarat, M. A. (2021). Life cycle impact assessment of recycled aggregate concrete, geopolymer concrete, and recycled aggregate-based geopolymer concrete. Sustainability (Switzerland), 13(24). https://doi.org/10.3390/su132413515
- Kumar Mehta, P. (2001). Concrete international / OCTOBER 2001 61.
References
Abeydeera, L. H. U. W., Mesthrige, J. W., & Samarasinghalage, T. I. (2019). Global research on carbon emissions: A scientometric review. In Sustainability (Switzerland) (Vol. 11, Issue 14). MDPI. https://doi.org/10.3390/su11143972
Bajpai, R., Choudhary, K., Srivastava, A., Sangwan, K. S., & Singh, M. (2020). Environmental impact assessment of fly ash and silica fume based geopolymer concrete. Journal of Cleaner Production, 254. https://doi.org/10.1016/j.jclepro.2020.120147
Garces, J. I. T., Dollente, I. J., Beltran, A. B., Tan, R. R., & Promentilla, M. A. B. (2021). Life cycle assessment of self-healing geopolymer concrete. Cleaner Engineering and Technology, 4. https://doi.org/10.1016/j.clet.2021.100147
Habert, G., D’Espinose De Lacaillerie, J. B., & Roussel, N. (2011). An environmental evaluation of geopolymer based concrete production: Reviewing current research trends. Journal of Cleaner Production, 19(11), 1229–1238. https://doi.org/10.1016/j.jclepro.2011.03.012
Imtiaz, L., Kashif-Ur-rehman, S., Alaloul, W. S., Nazir, K., Javed, M. F., Aslam, F., & Musarat, M. A. (2021). Life cycle impact assessment of recycled aggregate concrete, geopolymer concrete, and recycled aggregate-based geopolymer concrete. Sustainability (Switzerland), 13(24). https://doi.org/10.3390/su132413515
Kumar Mehta, P. (2001). Concrete international / OCTOBER 2001 61.