Evaluación del comportamiento de fractura del concreto OPC modificado con ladrillo molido proveniente de reusó yo reciclados y fibras de vidrio expuesto a temperaturas

Abstract

Abstract: Concrete buildings that suffer minor fires continue to operate under unknown mechanical conditions. Understanding the new mechanical response of the exposed structure is a pressing need in this research. In this context, the fracture behavior of OPC concrete modified with crushed brick from demolition, exposed to various temperatures, is investigated. To evaluate the strength, toughness, stiffness, and fragility of MCSBWF, concrete specimens and beams (15x15x80) cm reinforced with glass fibers are used. The beam deflection test uses the three-point method. The temperatures used are: 0°C, 200°C, 400°C, and 600°C. The partial replacement of OPC with brick dust passed through a 200-mesh sieve is: 0%, 4%, 8%, 12%, 16%, and 20%. Partial replacement of 1% fiberglass. It is reported that the pozzolanic material in brick dust increased the mechanical properties of concrete. The ASTM C618 (2019) components were found to exceed 65% by 5.5 percentage points in this study.