| dc.contributor.author | Suescum-Morales, David | |
| dc.contributor.author | Fernández Ledesma, Enrique | |
| dc.contributor.author | González-Caro, Ágata | |
| dc.contributor.author | Merino-Lechuga, Antonio Manuel | |
| dc.contributor.author | Fernández Rodríguez, José María | |
| dc.contributor.author | Jiménez Romero, José Ramón | |
| dc.date.accessioned | 2023-03-21T09:57:02Z | |
| dc.date.available | 2023-03-21T09:57:02Z | |
| dc.date.issued | 2023 | |
| dc.identifier.uri | http://hdl.handle.net/10396/25037 | |
| dc.description.abstract | The objective of the present study was to explore three types of vibro-compacted precast concrete mixtures replacing fine and coarse gravel with a recycled/mixed concrete aggregate (RCA or MCA). The portlandite phase found in RCA and MCA by XRD is a “potential” CO2 sink. CO2 curing improved the compressive strength in all the mixtures studied. One tonne of the mixtures studied could be decarbonised after only 7 days of curing 13,604, 36,077 and 24,635 m3 of air using natural aggregates, RCA or MCA, respectively. The compressive strength obtained, XRD, TGA/DTA and carbon emission evaluation showed that curing longer than 7 days in CO2 was pointless. The total CO2 emissions by a mixture using CO2 curing at 7 days were 221.26, 204.38 and 210.05 kg CO2 eq/m3 air using natural aggregates, RCA or MCA, respectively. The findings of this study provide a valuable contribution to carbon emission evaluation of CO2 curing in vibro-compacted precast concrete with recycled/mixed concrete aggregates (RCA or MCA). The technology proposed in this research facilitates carbon capture and use and guarantees enhanced compressive strength of the concrete samples. | es_ES |
| dc.format.mimetype | application/pdf | es_ES |
| dc.language.iso | eng | es_ES |
| dc.publisher | MDPI | es_ES |
| dc.rights | https://creativecommons.org/licenses/by/4.0/ | es_ES |
| dc.source | Materials, 16(6), 2436 (2023) | es_ES |
| dc.subject | Carbon emission evaluation | es_ES |
| dc.subject | CO2 curing | es_ES |
| dc.subject | Waste recycling | es_ES |
| dc.subject | CO2 sequestration | es_ES |
| dc.subject | Construction and demolition waste | es_ES |
| dc.title | Carbon Emission Evaluation of CO2 Curing in Vibro-Compacted Precast Concrete Made with Recycled Aggregates | es_ES |
| dc.type | info:eu-repo/semantics/article | es_ES |
| dc.relation.publisherversion | https://doi.org/10.3390/ma16062436 | es_ES |
| dc.relation.projectID | Junta de Andalucía. Ref. P20_0040 (FEDER) | es_ES |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
