Thermal and mechanical performance of cement paste under high temperature thermal cycles
| dc.contributor.author | Boquera, Laura | |
| dc.contributor.author | Castro Chicot, José Ramón | |
| dc.contributor.author | Pisello, Anna Laura | |
| dc.contributor.author | Fabiani, Claudia | |
| dc.contributor.author | D'Alessandro, Antonella | |
| dc.contributor.author | Ubertini, Filippo | |
| dc.contributor.author | Cabeza, Luisa F. | |
| dc.date.accessioned | 2021-08-24T06:50:55Z | |
| dc.date.issued | 2021 | |
| dc.date.updated | 2021-08-24T06:50:56Z | |
| dc.description.abstract | Concrete is identified in the literature as a suitable material for thermal energy storage applications, with even innovative application potentials such as storage media in concentrating solar power plants. To ensure a suitable heat transfer among concrete components, the binder material of concrete (cement paste) require further research and understanding to this aim. In particular, the thermal stability of cement paste under temperature cycled conditions arises as a research gap. In this study, ordinary Portland and calcium aluminate cement types were selected using a low water-cement ratio. Thermo-mechanical properties were studied before and after 1, 10, and 25 or 50 thermal cycles at 200 ◦C, 400 ◦C, 600 ◦C, and 800 ◦C. Although ordinary Portland cement paste showed micro-cracking propagation after 25 thermal cycles from ambient temperature to 200 ◦C and 400 ◦C, both cement pastes preserved their integrity, being compressive strength higher in ordinary Portland cement. On the contrary, after 25 or 50 thermal cycles at 600 ◦C and 800 ◦C, only calcium aluminate cement preserved its integrity, while ordinary Portland cement revealed a fragmentation status. Despite the compressive strength decrease in calcium aluminate paste at 600 ◦C and 800 ◦C, as a result of porosity increase, the properties were maintained after 10 thermal cycles. However, thermal conductivity in calcium aluminate paste was reduced nearly 50% after the first cycle at temperatures higher than 200 ◦C. | |
| dc.description.sponsorship | This work was partially funded by the Ministerio de Ciencia, Innovación y Universidades de España (RTI2018-093849-B-C31 - MCIU/AEI/FEDER, UE) and by the Ministerio de Ciencia, Innovación y Universidades - Agencia Estatal de Investigación (AEI) (RED2018-102431-T). The authors at University of Lleida would like to thank the Catalan Government for the quality accreditation given to their research group (2017 SGR 1537). GREiA is certified agent TECNIO in the category of technology developers from the Government of Catalonia. This work is partially supported by ICREA under the ICREA Academia programme and by the Italian project SOS-CITTA′ supported by Fondazione Cassa di Risparmio di Perugia under grant agreement No 2018.0499.026. Laura Boquera acknowledgments are due to the PhD school in Energy and Sustainable Development from University of Perugia. Laura Boquera would like to acknowledge the financial support provided by UNIPG –CIRIAF InpathTES project. Also, the authors would like to thank the collaboration of the companies “Cementos Molins Industrial” and “PROMSA” for the material supplied in this research. Financial support of the UNIPG-CIRIAF team has been achieved from the Italian Ministry of University and Research (MUR) in the framework of the Project FISR 2019: “Eco Earth” (code 00245) and it is gratefully acknowledged. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.doi | https://doi.org/10.1016/j.solmat.2021.111333 | |
| dc.identifier.idgrec | 031521 | |
| dc.identifier.issn | 0927-0248 | |
| dc.identifier.uri | http://hdl.handle.net/10459.1/71733 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier | |
| dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093849-B-C31/ES/METODOLOGIA PARA EL ANALISIS DE TECNOLOGIAS DE ALMACENAMIENTO DE ENERGIA TERMICA HACIA UNA ECONOMIA CIRCULAR/ | |
| dc.relation | info:eu-repo/grantAgreement/MICIU//RED2018-102431-T/ES/RED ESPAÑOLA EN ALMACENAMIENTO DE ENERGIA TERMICA/ | |
| dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1016/j.solmat.2021.111333 | |
| dc.relation.ispartof | Solar Energy Materials and Solar Cells, 2021, vol. 231, p. 111333-1-111333-9 | |
| dc.rights | cc-by-nc-nd (c) Elsevier, 2021 | |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | Cement paste | |
| dc.subject | Calcium aluminate cement | |
| dc.subject | Portland cement | |
| dc.subject | Thermal energy storage | |
| dc.subject | High temperature | |
| dc.subject | Thermal cycles | |
| dc.subject | Compressive strength | |
| dc.title | Thermal and mechanical performance of cement paste under high temperature thermal cycles | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |