Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Corrosion takes place in sewers when aggressive liquids come in contact with pipes and manholes. Acidic effluent attacks concrete and portland cement mortar while sulphuric acid, produced from hydrogen sulphide formed in the effluent, attacks materials of construction above the water line. Sulphates are aggressive to concrete made with ordinary portland cement which has a high alumina content. Corrosion of metals can also occur, e.g. manhole step irons. Sewer corrosion is the attack above the waterline on pipes and manholes by sulphuric acid produced by bacterial action. The characteristics of sewage which are likely to increase this type of corrosion are given. The efficacy of means of prolonging the effective life of concrete pipes and manholes is discussed.
Corrosion takes place in sewers when aggressive liquids come in contact with pipes and manholes. Acidic effluent attacks concrete and portland cement mortar while sulphuric acid, produced from hydrogen sulphide formed in the effluent, attacks materials of construction above the water line. Sulphates are aggressive to concrete made with ordinary portland cement which has a high alumina content. Corrosion of metals can also occur, e.g. manhole step irons. Sewer corrosion is the attack above the waterline on pipes and manholes by sulphuric acid produced by bacterial action. The characteristics of sewage which are likely to increase this type of corrosion are given. The efficacy of means of prolonging the effective life of concrete pipes and manholes is discussed.
Corrosion in Sewers
A. F. G. Rossouw (Autor:in)
1979
18 pages
Report
Keine Angabe
Englisch
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