RT info:eu-repo/semantics/article
T1 Effect of fine recycled concrete aggregate on the mechanical behavior of self-compacting concrete
A1 Revilla Cuesta, Víctor
A1 Ortega López, Vanesa
A1 Skaf Revenga, Marta
A1 Manso Villalaín, Juan Manuel
K1 Self-compacting concrete
K1 Recycled concrete aggregate
K1 Flowability
K1 Mechanical performance at different curing ages
K1 Stress-strain curves
K1 Desing values
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales de construcción
K1 Building materials
AB The high flowability of Self-Compacting Concrete (SCC) is achieved by adding large amounts of fine aggregate. Therefore, the addition of fine Recycled Concrete Aggregate (RCA) in this type of concrete can verynoticeably change its behavior. SCCs with different percentages of fine RCA (0%, 25%, 50%, 75%, and 100%)and 100% coarse RCA were manufactured in this study, to evaluate their performance, and to analyze theeffect of fine RCA in an SCC when a high amount of coarse RCA is also added. Both the fresh properties(flowability, density, and air content) and their mechanical behavior (strengths, non-destructive tests,stress–strain curves, and Poisson coefficient) at different curing ages were studied. These mechanicalproperties were compared with the values calculated using the formulas from two of the most commonstructural design standards. High values of strength and modulus of elasticity were obtained up to a fineRCA content of 50%. Additionally, any increase in fine RCA increased flowability and elastic and plasticdeformability of the SCC. The theoretical values overestimated the experimental ones by around 25%.From the mechanical point of view, SCC with up to 50% fine RCA could be used for structural applications, although service requirements regarding deformability recommend that its content should be limited to 25%.
PB Elsevier
SN 0950-0618
YR 2020
FD 2020-12
LK http://hdl.handle.net/10259/8058
UL http://hdl.handle.net/10259/8058
LA eng
NO The authors wish to express their gratitude to: the Spanish Ministry MCI, AEI, EU and ERDF [grant number FPU17/03374]; the Junta de Castilla y León (Regional Government) and ERDF [grant numbers UIC-231, BU119P17]; Youth Employment Initiative (JCyL) and ESF [grant number UBU05B_1274]; and finally, the University of Burgos [grant numbers SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 10-may-2024