Abstract
Concrete demolition waste could serve as a valuable source of aggregates for new structural concrete. However, the inferior physical properties of recycled concrete (RC) aggregate limit its application. This study explores the enhancement of RC aggregate through carbonation by impregnating phase change material (PCM) into porous RC aggregate subsequently injecting CO2 gas. We investigate the effects of calcium carbonate (CaCO3) and PCM on the strength development of RC aggregate concrete. The results demonstrate that concrete produced with CaCO3 enhanced PCM-RC (CPCM-RC) aggregate exhibits strength comparable to conventional concrete, making it a viable option for sustainable construction practices. The CPCM-RC aggregate shows improved physical properties and higher thermal mass than conventional concrete, promoting energy-efficient building applications. Replacing virgin aggregates with CPCM-RC aggregate could position concrete as a sustainable material in the construction industry.
Original language | English |
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Title of host publication | Creating Capacity and Capability: Embracing Advanced Technologies and Innovations for Sustainable Future in Building Education and Practice, Resilience and Sustainability in Building and Construction, Volume II |
Editors | Monty Sutrisna, Mostafa Babaeian Jelodar, Niluka Domingo, An Le, Ravindu Kahandawa |
Place of Publication | Singapore |
Publisher | Springer |
Pages | 15-22 |
Number of pages | 8 |
ISBN (Electronic) | 9789819629046 |
ISBN (Print) | 9789819629039 |
DOIs | |
Publication status | Published - 2025 |
Event | Australasian Universities Building Education Association Conference - Auckland, New Zealand Duration: 26 Nov 2023 → 28 Nov 2023 Conference number: 46th |
Publication series
Name | Lecture Notes in Civil Engineering |
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Volume | 563 |
ISSN (Print) | 2366-2557 |
ISSN (Electronic) | 2366-2565 |
Conference
Conference | Australasian Universities Building Education Association Conference |
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Abbreviated title | AUBEA |
Country/Territory | New Zealand |
City | Auckland |
Period | 26/11/23 → 28/11/23 |
Keywords
- Building applications
- High strength
- Phase change material
- Sustainable concrete
- Waste recycling