RT Journal Article
T1 Thermal deformability of recycled self-compacting concrete under cyclical temperature variations
A1 Revilla-Cuesta, Víctor
A1 Skaf, Marta
A1 Chica, José Antonio
A1 Fuente-Alonso, José Antonio
A1 Ortega-López, Vanesa
AB Recycled Concrete Aggregate (RCA) has greater elasticity than natural aggregate, due to the presence of adhered hydrated mortar in the coarse fraction, and mortar particles in the fine fraction. To evaluate this aspect under temperature variations, four Self-Compacting Concretes (SCC) made with 100% coarse and/or fine RCA were subjected to cyclical temperature variations between 70 °C and 20 °C and between −15 °C and 20 °C. The addition of RCA, especially in the coarse fraction, increased the thermal deformability, although the difference tended to decrease with the number of cycles, especially in positive temperature variations. This study concludes that the traditional upper limit of the linear thermal expansion coefficient for concrete (1.2·10−5 °C−1) is also suitable when RCA is incorporated.
SN 0167-577X
YR 2020
FD 2020-11-01
LK https://hdl.handle.net/11556/3114
UL https://hdl.handle.net/11556/3114
LA eng
NO Revilla-Cuesta , V , Skaf , M , Chica , J A , Fuente-Alonso , J A & Ortega-López , V 2020 , ' Thermal deformability of recycled self-compacting concrete under cyclical temperature variations ' , Materials Letters , vol. 278 , 128417 . https://doi.org/10.1016/j.matlet.2020.128417
NO Publisher Copyright: © 2020 Elsevier B.V.
NO This work was supported by MCI, AEI, and ERDF [ FPU17/03374 ]; JCyL and ERDF [ UIC -231, BU119P17 ]; JCyL and ESF [UBU05B_1274]; and the University of Burgos [SUCONS, Y135.GI]. This work was supported by MCI, AEI, and ERDF [FPU17/03374]; JCyL and ERDF [UIC-231, BU119P17]; JCyL and ESF [UBU05B_1274]; and the University of Burgos [SUCONS, Y135.GI].
DS TECNALIA Publications
RD 26 jul 2024