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High-resistance concretes and corrosionprevention systems for wastewater systems


Durability of concrete pipes

 


Building materials in wastewater systems are exposed to high corrosive stresses due to aggressive media. For a building project by the Emschergenossenschaft in Germany with a total investment volume of 4.5 billion euros, the CPC company developed an evaluation scheme for the use of suitable materials in the construction of wastewater systems: Accordingly, the most important step for the selection of materials when planning of a new construction is the estimation (modelling) of potentially occurring corrosive media or, when planning renovation, the identification of the media on site. For the choice of materials, the very much simplified rule is: the most important damaging substances are sulphuric acid from thiobacilli for concrete and halogenated and aromatic hydrocarbons for synthetics.

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roland.huettl@mpa.de


CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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