| Title |
Developing advanced techniques to reclaim existing end of service life (EoSL) bricks - An assessment of reuse technical viability |
| ID_Doc |
20775 |
| Authors |
Zhou, K; Chen, HM; Wang, Y; Lam, D; Ajayebi, A; Hopkinson, P |
| Title |
Developing advanced techniques to reclaim existing end of service life (EoSL) bricks - An assessment of reuse technical viability |
| Year |
2020 |
| Published |
|
| DOI |
10.1016/j.dibe.2020.100006 |
| Abstract |
Structural bricks are highly durable building products. However, brickwork is mostly demolished long before the end of its technical service life; the majority are crushed to form aggregate or else landfilled. Urban mining and circular economy are stimulating interest in the potential to recover structural products from end-of-service-life buildings for direct reuse. For brickwork, separating bricks from cement-based mortar, as opposed to lime-based mortar, without damage to bricks is a major barrier. This paper presents two advanced techniques based on saw-cutting and punching, to demonstrate the technical feasibility of brick reclamation. Compared to new bricks, reclaimed bricks have similar visual appearance and their compressive strength differs by -4.8% to +40%. Design formula for compressive strength of masonry in current codes can be applied to reclaimed bricks. The reclamation process achieves reclaim rate of over 95% and has significantly lower energy consumption, and carbon requirements (<1%) relative to new bricks. |
| Author Keywords |
Brickwork; Masonry; Reclaim; Circular economy; Reuse; End-of-Service-Life |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000662763600001 |
| WoS Category |
Construction & Building Technology; Engineering, Civil |
| Research Area |
Construction & Building Technology; Engineering |
| PDF |
https://doi.org/10.1016/j.dibe.2020.100006
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