Controle da qualidade na execução de paredes de concreto armado: um estudo de caso

Abstract

Technological advances and the industrialization of civil construction have contributed to the emergence of innovative construction techniques that aim to meet housing needs, especi ally for popular buildings. The cast-in-place reiforced concrete walls are presented as a good structural alternative for repetitive and large-scale constructions. Ensuring the quality of buildings that adopt this construction system is one of the main challenges of the construction industry. Thus, the Quality Management System emerges, through the set of norms, highlighting the ISO 9000 family, which has come to represent as international quality assurance standard in processes and products. The QMS present tools used to control the quality of products from various sectores of the industry. In this way, the presente work aims to know and analyze, through a case, the main tools used for quality control in the execution of reinforced concret walls, presented by the Quality Management System. For this, studies were carried out on the procedures for the execution of the services and the verification sheets of the services Applied to the case, as well as the monitoring of the execution of the structure of a building. The information recorded in the verification forms are used as souces of data for indicators of the work. The results found were qualitatively analyzed, relating the disapprovals with their possível causes. The item with the highest disapproval visually inspected is related to the existence pf pathological manifestations and concrete failures, being the causes of problems related to ineficiente training, quality of materials and properties of the concrete. From the results, it was possible to propose improvements in servisse execution procedure and servisse check sheet, as well as a checklist to assist in the inspection of activies and final quality of concrete wall buildings.