Performance of Alkali-Activated Slag Concrete Masonry Blocks Subjected to Accelerated Carbonation Curing
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| Vydáno v: | Sustainability vol. 15, no. 19 (2023), p. 14291 |
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| Hlavní autor: | |
| Další autoři: | , , , , , |
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MDPI AG
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| On-line přístup: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 022 | |a 2071-1050 | ||
| 024 | 7 | |a 10.3390/su151914291 |2 doi | |
| 035 | |a 2876712401 | ||
| 045 | 2 | |b d20230101 |b d20231231 | |
| 084 | |a 231634 |2 nlm | ||
| 100 | 1 | |a Hwalla, Joud | |
| 245 | 1 | |a Performance of Alkali-Activated Slag Concrete Masonry Blocks Subjected to Accelerated Carbonation Curing | |
| 260 | |b MDPI AG |c 2023 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a This study investigates the effect of accelerated carbonation curing on the carbon sequestration potential, performance, and microstructure of alkali-activated slag mixes representing concrete masonry blocks (CMBs). The carbonation curing process parameters varied, including initial curing duration, carbonation curing duration, and carbonation pressure. Research findings showed that a maximum CO2 uptake of 12.8%, by binder mass, was attained upon exposing concrete to 4 h initial curing and 20 h carbonation curing at a pressure of 5 bars. The compressive strength and water absorption capacity improved with longer initial and carbonation curing durations and higher pressure. Upon subjecting to salt attack, the mass and strength of 28-day concrete samples increased, owing to the formation of Friedel’s salt and Halite. All mixes could be used as non-load-bearing CMB, with a 1-day strength greater than 4.1 MPa. Based on the global warming potential index, the carbon footprint of carbonation-cured, alkali-activated slag concrete masonry units was up to 46% lower than non-carbonation-cured counterparts. Research findings offer valuable information on the production of carbonation-cured, cement-free concrete masonry blocks to replenish natural resources, recycle industrial waste, and mitigate CO2 emissions. | |
| 653 | |a Mechanical properties | ||
| 653 | |a Raw materials | ||
| 653 | |a Masonry | ||
| 653 | |a Environmental impact | ||
| 653 | |a Construction industry | ||
| 653 | |a Cement | ||
| 653 | |a Curing | ||
| 653 | |a Emissions | ||
| 653 | |a Concrete | ||
| 653 | |a Industrial wastes | ||
| 653 | |a Natural resources | ||
| 653 | |a Carbon dioxide | ||
| 653 | |a Sustainability | ||
| 700 | 1 | |a Al-Mazrouei, Mahra | |
| 700 | 1 | |a Al-Karbi, Khalood | |
| 700 | 1 | |a Al-Hebsi, Afraa | |
| 700 | 1 | |a Al-Ameri, Mariam | |
| 700 | 1 | |a Al-Hadrami, Fatima | |
| 700 | 1 | |a El-Hassan, Hilal | |
| 773 | 0 | |t Sustainability |g vol. 15, no. 19 (2023), p. 14291 | |
| 786 | 0 | |d ProQuest |t Publicly Available Content Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2876712401/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/2876712401/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/2876712401/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |