Análise de manifestações patológicas em estações de tratamento de água

Abstract

Water supply is essential for promoting public health and quality of life, especially in urban areas. The water supply systems aim to provide water in quantity and quality to all users, for that there are a set of units that capture water from water bodies and deliver it in adequate conditions for human consumption in the users' homes. Among these units, the Water Treatment Station (ETA) stands out, whose main purpose is to adapt water quality to potability standards. The main material used for the construction of an ETA is reinforced concrete. Water has a high capacity to cause concrete degradation, resulting in damage to structures. Thus, it is of great importance to investigate the occurrence of pathological manifestations in these structures, because, due to the relevance of the water supply service, the ETA must work continuously, which requires continuous control and maintenance, which often does not occur. properly. This research carried out the analysis of pathological manifestations in WTPs in the city of Senado Canedo. The method used was defined by Lichtenstein (1986). During the research, the following pathological manifestations were identified: displacement, blistering and dirtiness of the paintings, disintegration of the concrete, cracks, exposure and corrosion of the reinforcement, leaching and efflorescence, with the last two being the most recurrent. The triggering factor of the pathologies is the presence of water and humidity, and many of the structures are totally submerged, the inadequate treatment of concrete surfaces (waterproofing) contributes to intensifying the pathologies.