Comparative study of concrete panels' fire resistance
Bolina, Fabrício Longhi
Khayat, Kamal H.
Fonseca Tutikian, Bernardo
Show full item record
Show full item record
AbstractThere is still a concern regarding concrete structures' fire safety, mostly due to the occurrence of concrete spalling. Although many tests have already been carried out, there is no clear definition about the parameters of the factors that influence its occurrence. This paper aimed to compare three different types of concrete panels, with dimensions of 300 x 315 x 10 cm (124.0 x 39.4 x 3.9 in.), composed of reinforced concrete (RC), prestressed concrete, and polypropylene microfiber RC. The panels were exposed to the standard fire curve based on ISO 834, aged 28 days, measuring the temperatures in panels' surfaces. Prestressed concrete panels experienced explosive spalling 18 minutes after the test began. RC panels and the panels with polypropylene microfiber addition maintained their integrity and structural stability for 240 minutes, failing in the thermal insulation criteria at 210 and 140 minutes, respectively. Although polypropylene microfiber concrete panels presented no spalling of concrete, conventional concrete panels attended the standardized criteria for a longer period due to its better thermal insulation.
Showing items related by title, author, creator and subject.
Factores influyentes en la calidad del concreto: una encuesta a los actores relevantes de la industria del hormigón Orozco Bohorquez, Mario; Avila Pereira, Yoleimy Del Carmen; Restrepo Velasquez, Steven Andrei; Parody, Alexander (Revista Ingenieria De Construccion, 2018-03-13)Concrete is the most used building material worldwide, involving thousands of field, academic and laboratory professionals in its production, transportation and its application, which creates a great margin of possible ...
Conrado Vargas, Tania (2016-10-04)El concreto es el material de construcción más utilizado en el mundo, involucrando en su uso a miles de profesionales de campo, académico y de laboratorio, en su producción, transporte o aplicación, lo cual genera un gran ...
Estudio de prefactibilidad de concreto sostenible usando agregado grueso reciclado en Barranquilla Castillo Zea, Anyeliz Yulieth; Chimá Acosta, Alejandra Lucía; Rondón Rueda, Gonzalo Alberto (Universidad de la Costa, 2019-04-25)In this study, the prefeasibility of sustainable concrete is evaluated using a coarse recycled aggregate from a rigid pavement in Barranquilla, for this purpose three stages were developed. First, a market study that ...