Efeitos do transporte de esgoto sanitário e águas pluviais em tubulações de concreto

Abstract

The great use of concrete in the world, it is evident the need for greater care with the durability of this material. Make it more durable means prepares it less susceptible towear, thus providing better performance for structures for a period of time. Today we can see that structures that have constant monitoring and maintenance, are more durable and less expensive than those that do not have them. It is clear then thatreplacing spending on repairs and reconstructions, for maintenance expenses, you can achieve considerable savings. The pipes carrying domestic sewage and rainwater, as well as any other structure, need preventive maintenance in order to avoid the appearance of diseases so common to this medium. The effects of concrete deterioration in the said pipes are basically caused by chemical,physical and biological agents, such as biogenic corrosion, wear and surface attackcaused by sulfates. In all cases discussed in this paper, there are ways to minimize the risks of wear, but often, interventions are only for emergency. The economic damage is great in such matters, and awareness of the importance of a methodology of preventive maintenance must be purchased.