INFLUÊNCIA DA CLASSE DO CONCRETO NO DIMENSIONAMENTO DA ESTACA TIPO HÉLICE CONTÍNUA SEGUNDO ATUALIZAÇÕES DA NBR 6122 (ABNT,2019)

Abstract

The study of new construction technologies has intensified over the years in order to understand the mechanisms of concrete deterioration and how it behaves in the environment where the structure is inserted. In this way, the revisions of the standardization parameters become necessary and contribute to the increase in the useful life of the structures. NBR(ABNT,6122) regulates the executive methods for the design of foundations in Brazil. In 2019, the standard was revised and updated, replacing the last version of 2010. As the helix pile foundation is produced by concrete and steel, being the first material of greater volume, it is necessary to always analyze the raw material costs for this production. For this reason, this research aimed to investigate the properties of concrete produced according to the specifications and updates of NBR 6122, making a comparison in the sizing between the versions for the consumption of concrete, following the parameters applied in relation to the safety coefficients, aggressiveness class environment and concrete class, in order to evaluate and compare the results of strength, durability and its final consumption in production.