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].
FRC; dry dock; probabilistic analysis