Influência do tipo de preparação das bases de corpos de prova de concreto utilizando placas de neoprene e retificação no ensaio de Resistência à compressão

Abstract

The compressive strength is one of the main characteristics of concrete, a good quality and acceptable concrete must present a resistance within the expected and proposed in the standard. The study presented in this work is based on several standards and research, which were highlighted and cited throughout the work. Some steps were necessary in the development of the work, such as concrete compressive strength test, granulometric test and other procedures, in order to reach the main objective of the study. All tests and procedures were carried out in the university's own materials laboratory. In view of this, the study in question has as its main focus an analysis comparative analysis between two methods of preparation of the bases, being them: using Neoprene plates and in sequence using the rectification, in order to identify the influence of each method in the final result of the test of the same concrete. For this purpose, the compressive strength test of two types of concrete was carried out, using the two methods mentioned above for the preparation of the bases. The results showed different characteristics between the methods, and the method where the use of rectification was made showed a better performance when compared to the use of Neoprene plates, since it presented a lower dispersion in the results. Therefore, we can conclude that the method of rectification the bases of specimens, for the test of compressive strength of concrete, has a higher efficiency compared to the use of Neoprene plates.