Avaliação do concreto estrutural de pilares do Comando-Geral da Polícia Militar do Amapá utilizando métodos destrutivos e não destrutivos

Abstract

The area of pathology, in civil engineering, is responsible for analyzing the signs, mechanisms and origins of failures in constructions, using trials and tests to identify the underlying causes of defects and propose corrective solutions, in order to prevent their occurrence and ensure the stability of the construction. The General Command of the Military Police of Amapá (CGPMAP) is a building that is over 51 years old and, due to various interventions and exposure to environmental factors, has presented structural pathologies in its pillars that could put its structure and the safety of the people in it at risk. attend the institution. Thus, the research problem was does the structural concrete of the CGPMAP pillars meet the technical quality criteria? In this context, the general objective of the work was to evaluate the quality of the structural concrete of the CGPMAP pillars. To this end, carbonation, sclerometry and ultrasound tests were carried out, with the purpose of verifying whether the concrete of these structures meets the normative quality criteria. The results demonstrated the presence of carbonation in the analyzed samples and the sclerometry and ultrasound tests indicated a decrease in the compressive strength of the concrete, which was below 25MPa, the minimum value according to NBR 6118. It is concluded that a set of interventions is necessary to correct and recover the pillars with CGPMAP pathologies, considering that the carbonation process is advanced and the compressive strength is decreasing.