Probabilistic analysis of the fiber reinforced concrete used in the construction of the Estaleiro Rio Grande dry dock

• Autor(a) principal: Magalhães, Fabio Costa
• Data de Publicação: 2011
• Outros Autores: Real, Mauro de Vasconcellos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da FURG (RI FURG)
• Texto Completo: http://repositorio.furg.br/handle/1/5024
• topic: FRC; Dry dock; Probabilistic analysis; CRF; Dique seco; Análise probabilística

Due to the variability of the concrete strength, it is fundamental to use statistical methodologies to establish the parameters for the concrete structures acceptance. The utilization of a large number of strength test results is very important to the validation and calibration of the existing standard codes and technical specifications. The objective of this study is to make a statistical analysis of the strength test results of the concrete reinforced with metallic and propylene fibers used in the construction of the Estaleiro Rio Grande dry dock, in Rio Grande-RS. A correlation model between the concrete tensile and compressive strengths was proposed. A model to predict the increasing of the concrete strength with time was also established both for the case of compression, as in the case of tension. Furthermore, it was made a comparison among the concrete characteristic strength calculated estimates according to the NBR 12655 [9] and EN-206-1 [17] standard codes and to the ACI COMMITTEE 318 [2].