RT info:eu-repo/semantics/article
T1 Stress-strain behavior of electric arc furnace slag concrete under uniaxial compression: Short- and long-term evaluation
A1 Trento, Daniel
A1 Ortega López, Vanesa
A1 Zanini, Mariano A.
A1 Faleschini, Flora
K1 Baritic concrete
K1 Cyclic loading
K1 Concrete damage
K1 Slag concrete
K1 Secant modulus
K1 Poisson’s coefficient
K1 Stress-strain curve
K1 Hormigón-Ensayos
K1 Concrete-Testing
K1 Materiales de construcción
K1 Building materials
K1 Resistencia de materiales
K1 Strength of materials
AB This work analyzes the experimental behavior of electric arc furnace slag (EAFS) concretes in terms of full stress-strain behavior under uniaxial compression. Tests are carried out on samples cured for 28 days and for more than 6 years, representing both short- and long-term conditions. Results are discussed in terms of main mechanical strength (compressive and indirect tensile strength), deformative properties in the axial and transverse direction, i.e., secant modulus and Poisson’s coefficient, stress-strain relations during the load history, damage evolution and critical stress. Furthermore, two models for predicting the stress-strain behavior of concrete under repeated cycles are shown, for both natural aggregate concrete (NAC) and EAFS concrete. Results indicate that EAFS concrete has higher compressive and tensile strength than the reference, as well as better deformative properties. The aggregates type influences the deformability of the concrete also beyond the elastic regime, both in the longitudinal and transverse direction, with a different extent depending on the applied stress. Specifically, EAFS concrete attained higher secant modulus particularly at low-stress levels, while such improvement is less pronounced at high stresses. Instead, no significant differences were recorded concerning Poisson’s coefficient between NAC and EAFS concrete. The analytical models proposed hereafter well predict the experimental behavior for both concrete types.
PB Elsevier
SN 0950-0618
YR 2024
FD 2024-04
LK http://hdl.handle.net/10259/9727
UL http://hdl.handle.net/10259/9727
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024