2026-06-30T04:09:11Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/74772023-04-17T11:09:10Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172
Quantification and characterization of the microstructural damage of recycled aggregate self-compacting concrete under cyclic temperature changes
Revilla Cuesta, Víctor
Skaf Revenga, Marta
Chica Páez, José Antonio
Ortega López, Vanesa
Manso Villalaín, Juan Manuel
Self-compacting concrete
Recycled aggregate
Cyclic temperature change
Thermal internal damage
Microstructural characterization
Indicator non-destructive property
Recycled Aggregate (RA) usually increases porosity and weakens Interfacial Transition Zones (ITZs) of concrete,
which favors the appearance of internal thermal damage. Four Self-Compacting Concrete (SCC) mixes with
coarse and fine RA were subjected to positive and negative cyclic temperature variations to characterize their
thermal damage and quantify its effects. Two damage mechanisms were found. On the one hand, micro-cracks
appeared in the ITZs. On the other hand, micro-cracks arose from the micro-pores and propagated through the
cementitious matrix. Both damage mechanisms were promoted by the use of coarse and fine RA, respectively.
The damage was most notable at sub-zero temperatures and when adding coarse RA. Furthermore, it primarily
affected compressive strength, although ultrasonic pulse velocity and hardened density also decreased, which
served as non-destructive indicators to indirectly quantify the level of thermal internal damage of SCC.
2023-03-01
2023-03-01
2023-02
info:eu-repo/semantics/article
0167-577X
http://hdl.handle.net/10259/7477
10.1016/j.matlet.2022.133628
eng
Materials Letters. 2023, V. 333, 133628
https://doi.org/10.1016/j.matlet.2022.133628
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113837RB-I00/ES/ESTUDIO A ESCALA REAL DE HORMIGONES SOSTENIBLES, HIDRAULICOS Y BITUMINOSOS, DE ALTAS PRESTACIONES, FABRICADOS CON RESIDUOS SIDERURGICOS Y DE CONSTRUCCION/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/TED2021-129715B-I00/ES/Reciclaje de palas y cimentaciones de aerogeneradores en hormigón para nuevos parques eólicos de alta potencia/
info:eu-repo/grantAgreement/MICIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU17%2F03374/
info:eu-repo/grantAgreement/Junta de Castilla y León//UIC 231/
info:eu-repo/grantAgreement/UBU//Y135.GI/
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Elsevier