2026-06-10T19:41:54Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/97272024-11-23T01:05:12Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

00925njm 22002777a 4500 dc Trento, Daniel author Ortega López, Vanesa author Zanini, Mariano A. author Faleschini, Flora author 2024-04 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. 0950-0618 http://hdl.handle.net/10259/9727 10.1016/j.conbuildmat.2024.135837 Baritic concrete Cyclic loading Concrete damage Slag concrete Secant modulus Poisson’s coefficient Stress-strain curve Stress-strain behavior of electric arc furnace slag concrete under uniaxial compression: Short- and long-term evaluation