ESTUDO DA CONFORMIDADE DOS CONCRETOS PRODUZIDOS EM OBRAS DE PEQUENO E MÉDIO PORTE, NA CIDADE DE VARGINHA, CONFORME PARÂMETROS ESTABELECIDOS PELA ABNT NBR 12655:2015

Abstract

This present work has as propose to study the concrete produced at small and medium mien work site, at the city of Varginha-MG, with aim to analyze the collected data through the application of a questionnaire, in order to evaluate the manner that how this material was produced, as well as how the applied concrete recipe, the component characteristics, the insertion order and the mix method. Therefore, the information was compared where are applied parameters that is recommended by the NBR 12655:2015, like the water cement ratio, cement consumption and the resistance at the final of 28 days, being, hereby, the non-compliance of produced concrete at the work site. By this detection, was developed two dosages with available materials at the region, through required essays and the production of proof bodies to study the resistance at varied ages and thus, develop dosage diagrams arising from concrete behavior laws. These diagrams are constructed to compare the concrete recipe produced at laboratory and from that was collected at the work site, and suggest recipes to be applied through an exposition in a guidebook, that, as well, has the goal to expose the care to have with components and how the concrete must be done at work site.