Prediction model for calculation of the limestone powder concrete carbonation depth
Само за регистроване кориснике
2024
Чланак у часопису (Рецензирана верзија)
,
Elsevier Ltd
Метаподаци
Приказ свих података о документуАпстракт
The efficient way to mitigate the impact of the concrete industry on climate change is to reduce the clinker content in the concrete mix. Beside incorporating supplementary cementitious materials (SCMs), it is possible to use high filler content combined with concrete mix optimisation. Limestone powder emerges as a promising filler mineral due to its availability and ready-to-use technology. In this work, the carbonation resistance of concrete with a high limestone powder content (45–65% of the powder phase) was experimentally tested. Test results showed that, with an optimized mix design featuring low water content and increased paste and plasticizer volume, concrete mixes satisfied high workability and strength demands for commonly applied strength classes. However, carbonation resistance remains a challenge. After two years in indoor natural conditions, carbonation depths were 8%, 28%, and 67% greater than referent Portland cement concrete for mixes with 47%, 58%, and 65% limestone ...powder content, respectively. Further analyses showed the inapplicability of the existing fib Model Code 2010 service life prediction model to limestone powder concrete. Based on a comprehensive database of experimental results, the modification of the fib prediction was proposed. A full probabilistic service life analysis revealed that for concrete with more than 20% limestone powder content and for both 50 and 100-years’ design service life, the currently prescribed concrete cover depths in European standards should be increased, depending on the carbonation exposure class.
Кључне речи:
Limestone powder concrete / Low clinker content / Carbonation resistance / Prediction modelИзвор:
Journal of Building Engineering, 2024, 108776-Издавач:
- Elsevier Ltd
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200092 (Универзитет у Београду, Грађевински факултет) (RS-MESTD-inst-2020-200092)
Институција/група
GraFarTY - JOUR AU - Radović, Andrija AU - Carević, Vedran AU - Marinković, Snežana AU - Plavšić, Jasna AU - Tešić, Ksenija PY - 2024 UR - https://grafar.grf.bg.ac.rs/handle/123456789/3461 AB - The efficient way to mitigate the impact of the concrete industry on climate change is to reduce the clinker content in the concrete mix. Beside incorporating supplementary cementitious materials (SCMs), it is possible to use high filler content combined with concrete mix optimisation. Limestone powder emerges as a promising filler mineral due to its availability and ready-to-use technology. In this work, the carbonation resistance of concrete with a high limestone powder content (45–65% of the powder phase) was experimentally tested. Test results showed that, with an optimized mix design featuring low water content and increased paste and plasticizer volume, concrete mixes satisfied high workability and strength demands for commonly applied strength classes. However, carbonation resistance remains a challenge. After two years in indoor natural conditions, carbonation depths were 8%, 28%, and 67% greater than referent Portland cement concrete for mixes with 47%, 58%, and 65% limestone powder content, respectively. Further analyses showed the inapplicability of the existing fib Model Code 2010 service life prediction model to limestone powder concrete. Based on a comprehensive database of experimental results, the modification of the fib prediction was proposed. A full probabilistic service life analysis revealed that for concrete with more than 20% limestone powder content and for both 50 and 100-years’ design service life, the currently prescribed concrete cover depths in European standards should be increased, depending on the carbonation exposure class. PB - Elsevier Ltd T2 - Journal of Building Engineering T1 - Prediction model for calculation of the limestone powder concrete carbonation depth SP - 108776 DO - 10.1016/j.jobe.2024.108776 ER -
@article{ author = "Radović, Andrija and Carević, Vedran and Marinković, Snežana and Plavšić, Jasna and Tešić, Ksenija", year = "2024", abstract = "The efficient way to mitigate the impact of the concrete industry on climate change is to reduce the clinker content in the concrete mix. Beside incorporating supplementary cementitious materials (SCMs), it is possible to use high filler content combined with concrete mix optimisation. Limestone powder emerges as a promising filler mineral due to its availability and ready-to-use technology. In this work, the carbonation resistance of concrete with a high limestone powder content (45–65% of the powder phase) was experimentally tested. Test results showed that, with an optimized mix design featuring low water content and increased paste and plasticizer volume, concrete mixes satisfied high workability and strength demands for commonly applied strength classes. However, carbonation resistance remains a challenge. After two years in indoor natural conditions, carbonation depths were 8%, 28%, and 67% greater than referent Portland cement concrete for mixes with 47%, 58%, and 65% limestone powder content, respectively. Further analyses showed the inapplicability of the existing fib Model Code 2010 service life prediction model to limestone powder concrete. Based on a comprehensive database of experimental results, the modification of the fib prediction was proposed. A full probabilistic service life analysis revealed that for concrete with more than 20% limestone powder content and for both 50 and 100-years’ design service life, the currently prescribed concrete cover depths in European standards should be increased, depending on the carbonation exposure class.", publisher = "Elsevier Ltd", journal = "Journal of Building Engineering", title = "Prediction model for calculation of the limestone powder concrete carbonation depth", pages = "108776", doi = "10.1016/j.jobe.2024.108776" }
Radović, A., Carević, V., Marinković, S., Plavšić, J.,& Tešić, K.. (2024). Prediction model for calculation of the limestone powder concrete carbonation depth. in Journal of Building Engineering Elsevier Ltd., 108776. https://doi.org/10.1016/j.jobe.2024.108776
Radović A, Carević V, Marinković S, Plavšić J, Tešić K. Prediction model for calculation of the limestone powder concrete carbonation depth. in Journal of Building Engineering. 2024;:108776. doi:10.1016/j.jobe.2024.108776 .
Radović, Andrija, Carević, Vedran, Marinković, Snežana, Plavšić, Jasna, Tešić, Ksenija, "Prediction model for calculation of the limestone powder concrete carbonation depth" in Journal of Building Engineering (2024):108776, https://doi.org/10.1016/j.jobe.2024.108776 . .