Publicação
Optimisation of hydraulic lime mortars incorporating an oil-refinery catalyst by-product for sustainable building rehabilitation
| authorProfile.email | biblioteca@isel.pt | |
| datacite.subject.fos | Engenharia e Tecnologia::Engenharia Civil | |
| dc.contributor.author | Costa, Carla | |
| dc.contributor.author | Nunes, Sandra | |
| dc.date.accessioned | 2026-02-20T10:39:32Z | |
| dc.date.available | 2026-02-20T10:39:32Z | |
| dc.date.issued | 2026-03 | |
| dc.description.abstract | Abstract This investigation employs a Central Composite Design-based Design of Experiments (DoE) methodology to develop hydraulic lime mortars incorporating equilibrium catalyst (ECat), a by-product generated at the fluid catalytic cracking unit in oil refineries. The derived mathematical models describe the quantitative effects of key mixing variables, specifically ECat content, water-to-binder ratio and water repellent dosage, as well as their cross-interactions, on mortar properties, namely workability, compressive strength, ultrasound propagation velocity and dynamic modulus of elasticity. Numerical optimisation techniques enabled the identification of optimal lime mortar compositions that maximise eco-efficiency while ensuring compliance with both regulatory and technological requirements for diverse masonry applications, including the rehabilitation of ancient buildings. Results confirm the by-product upcyclability of ECat, with feasible incorporation levels up to 56.6 % by mass, yielding mortars with significant potential for reducing the environmental impact of the built environment while advancing the circular economy and fostering technological innovation in the construction sector. | eng |
| dc.identifier.citation | Costa, C., & Nunes, S. (2026). Optimisation of hydraulic lime mortars incorporating an oil-refinery catalyst by-product for sustainable building rehabilitation. Development in the Built Environment, 25, 1-13. https://doi.org/10.1016/j.dibe.2026.100860 | |
| dc.identifier.doi | 10.1016/j.dibe.2026.100860 | |
| dc.identifier.eissn | 2666-1659 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/22672 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Elsevier | |
| dc.relation.hasversion | https://www.sciencedirect.com/science/article/pii/S2666165926000189?pes=vor&utm_source=clarivate&getft_integrator=clarivate | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Spent fluid catalytic cracking catalyst (ECat) | |
| dc.subject | Hydraulic lime-based mortars | |
| dc.subject | By-product upcycling | |
| dc.subject | Historic building rehabilitation | |
| dc.subject | Sustainable construction material | |
| dc.subject | Design of experiments | |
| dc.subject | Multi-objective optimisation | |
| dc.title | Optimisation of hydraulic lime mortars incorporating an oil-refinery catalyst by-product for sustainable building rehabilitation | eng |
| dc.type | research article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 13 | |
| oaire.citation.startPage | 1 | |
| oaire.citation.title | Developments in the Built Environment | |
| oaire.citation.volume | 25 | |
| oaire.version | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 | |
| person.familyName | Costa | |
| person.familyName | Nunes | |
| person.givenName | Carla | |
| person.givenName | Sandra | |
| person.identifier | R-000-G5N | |
| person.identifier.ciencia-id | 7914-3BF1-F9EC | |
| person.identifier.orcid | 0000-0003-4222-4734 | |
| person.identifier.orcid | 0000-0002-4876-2587 | |
| person.identifier.rid | AAB-4944-2020 | |
| person.identifier.scopus-author-id | 36767370700 | |
| relation.isAuthorOfPublication | 6dd2b0ba-82ea-4928-be43-62f14e275ac3 | |
| relation.isAuthorOfPublication | 1ed7079b-5955-4712-968e-820629764c4a | |
| relation.isAuthorOfPublication.latestForDiscovery | 6dd2b0ba-82ea-4928-be43-62f14e275ac3 |