Aggressive Influences of Water from Wastewater Treatment Plants on Reinforced Concrete Members
Tomme: LVII (LXI) Fascicle: 1 | 2011
Pages: 55-64
Abstract text:
The impact of wastewater within water treatment plants on the reinforced concrete members is studied. Structural members exposed to wastewater environment are susceptible to different forms of chemical attack. Usually, concrete is resistant to most natural environments and many chemicals. Concrete is virtually the only material used for the construction of wastewater transportation and treatment facilities because of its ability to resist to corrosion caused by the highly aggressive contaminants in the wastewater stream as well as the chemicals added to treat these waste products. However concrete is sometimes exposed to substances that can attack it and cause deterioration. The corrosion of the concrete is generated by the interaction between biological and chemical processes. Reinforcement corrosion, a consequence of concrete damage, is a very important process because this represents a significant threat for the resistance and stability of structures. Because many times maintenance costs are disproportionately high, indicating a lack of adequate durability, the comprehension of the damaging processes is a key step in order to manufacture highly durable materials.
Key Words:
corrosion; concrete; reinforcement; sewage.
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