ECO2 framework assessment of limestone powder concrete slabs and columns
Чланак у часопису (Објављена верзија)
,
2352-7102/© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Метаподаци
Приказ свих података о документуАпстракт
Producing limestone powder requires comparably far less energy than the production of ordinary
Portland cement (OPC), making it a promising sustainable solution for partial replacement of OPC
in concrete. Lower production energy could be translated into lower environmental impact and
lower cost, which are two pillars of the sustainability of the resulting concrete. However, the
question remains if replacing OPC with larger percentages of limestone powder would compromise
the performance of the resulting concrete to a level that surpasses the environmental and
economic gains. In order to assess the collective impact of these concretes, a performance-based
multi-criteria decision analysis framework, ECO2, is used. For that purpose, 26 experimentally
verified, concrete mixtures with and without limestone powder were evaluated through potential
application in two types of reinforced concrete (RC) structural elements (slabs and columns)
under identical environmental condition. The... main results of the research showed a clear environmental advantage of concrete with a reduced OPC content, but the relatively higher superplasticizer amount in some cases could affect the final sustainability performance of the resulting mix. In the case of RC slabs, the best ECO2 score was obtained for concrete containing limestone powder. Mixtures with 200–250 kg of cement per unit volume of concrete had the highest ECO2 score for all the considered criteria. In the second case, due to the nature of the structural performance requirements in columns, the crucial influence of the concrete compressive strength is clear. The obtained results have shown approximately equal sustainability potential of OPC and limestone concretes in vertical elements such as columns. However, it seems that a certain improvement in the design of concrete mixtures with a high limestone powder content could
make these competitive in all fields.
Кључне речи:
Structural concrete / Limestone powder / Sustainability / LCA / ECO2 frameworkИзвор:
Journal of Building Engineering, 2022, 57, 104928-Издавач:
- Elsevier
Финансирање / пројекти:
- Истраживање могућности примене отпадних и рециклираних материјала у бетонским композитима, са оценом утицаја на животну средину, у циљу промоције одрживог грађевинарства у србији (RS-MESTD-Technological Development (TD or TR)-36017)
Напомена:
- This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Институција/група
GraFarTY - JOUR AU - Radović, Andrija AU - Hafez, Hisham AU - Tošić, Nikola AU - Marinković, Snežana AU - De La Fuente, Albert PY - 2022 UR - https://grafar.grf.bg.ac.rs/handle/123456789/3360 AB - Producing limestone powder requires comparably far less energy than the production of ordinary Portland cement (OPC), making it a promising sustainable solution for partial replacement of OPC in concrete. Lower production energy could be translated into lower environmental impact and lower cost, which are two pillars of the sustainability of the resulting concrete. However, the question remains if replacing OPC with larger percentages of limestone powder would compromise the performance of the resulting concrete to a level that surpasses the environmental and economic gains. In order to assess the collective impact of these concretes, a performance-based multi-criteria decision analysis framework, ECO2, is used. For that purpose, 26 experimentally verified, concrete mixtures with and without limestone powder were evaluated through potential application in two types of reinforced concrete (RC) structural elements (slabs and columns) under identical environmental condition. The main results of the research showed a clear environmental advantage of concrete with a reduced OPC content, but the relatively higher superplasticizer amount in some cases could affect the final sustainability performance of the resulting mix. In the case of RC slabs, the best ECO2 score was obtained for concrete containing limestone powder. Mixtures with 200–250 kg of cement per unit volume of concrete had the highest ECO2 score for all the considered criteria. In the second case, due to the nature of the structural performance requirements in columns, the crucial influence of the concrete compressive strength is clear. The obtained results have shown approximately equal sustainability potential of OPC and limestone concretes in vertical elements such as columns. However, it seems that a certain improvement in the design of concrete mixtures with a high limestone powder content could make these competitive in all fields. PB - Elsevier T2 - Journal of Building Engineering T1 - ECO2 framework assessment of limestone powder concrete slabs and columns SP - 104928 VL - 57 DO - 10.1016/j.jobe.2022.104928 ER -
@article{ author = "Radović, Andrija and Hafez, Hisham and Tošić, Nikola and Marinković, Snežana and De La Fuente, Albert", year = "2022", abstract = "Producing limestone powder requires comparably far less energy than the production of ordinary Portland cement (OPC), making it a promising sustainable solution for partial replacement of OPC in concrete. Lower production energy could be translated into lower environmental impact and lower cost, which are two pillars of the sustainability of the resulting concrete. However, the question remains if replacing OPC with larger percentages of limestone powder would compromise the performance of the resulting concrete to a level that surpasses the environmental and economic gains. In order to assess the collective impact of these concretes, a performance-based multi-criteria decision analysis framework, ECO2, is used. For that purpose, 26 experimentally verified, concrete mixtures with and without limestone powder were evaluated through potential application in two types of reinforced concrete (RC) structural elements (slabs and columns) under identical environmental condition. The main results of the research showed a clear environmental advantage of concrete with a reduced OPC content, but the relatively higher superplasticizer amount in some cases could affect the final sustainability performance of the resulting mix. In the case of RC slabs, the best ECO2 score was obtained for concrete containing limestone powder. Mixtures with 200–250 kg of cement per unit volume of concrete had the highest ECO2 score for all the considered criteria. In the second case, due to the nature of the structural performance requirements in columns, the crucial influence of the concrete compressive strength is clear. The obtained results have shown approximately equal sustainability potential of OPC and limestone concretes in vertical elements such as columns. However, it seems that a certain improvement in the design of concrete mixtures with a high limestone powder content could make these competitive in all fields.", publisher = "Elsevier", journal = "Journal of Building Engineering", title = "ECO2 framework assessment of limestone powder concrete slabs and columns", pages = "104928", volume = "57", doi = "10.1016/j.jobe.2022.104928" }
Radović, A., Hafez, H., Tošić, N., Marinković, S.,& De La Fuente, A.. (2022). ECO2 framework assessment of limestone powder concrete slabs and columns. in Journal of Building Engineering Elsevier., 57, 104928. https://doi.org/10.1016/j.jobe.2022.104928
Radović A, Hafez H, Tošić N, Marinković S, De La Fuente A. ECO2 framework assessment of limestone powder concrete slabs and columns. in Journal of Building Engineering. 2022;57:104928. doi:10.1016/j.jobe.2022.104928 .
Radović, Andrija, Hafez, Hisham, Tošić, Nikola, Marinković, Snežana, De La Fuente, Albert, "ECO2 framework assessment of limestone powder concrete slabs and columns" in Journal of Building Engineering, 57 (2022):104928, https://doi.org/10.1016/j.jobe.2022.104928 . .