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Durability of cement-based materials in drinking water storage

Schwotzer, Matthias; Gerdes, Andreas

Abstract (englisch):
In order to provide a hygienic storage drinking water reservoirs have been coated with mineral mortar linings in all epochs of European history. However, modern cement-based materials often show in this special operational environment an inadequate durability. Even though drinking water is commonly not considered particularly harmful to cementitious systems, the chemical degradation of mortar linings in drinking water storage systems can occur very fast compared to other common deterioration reactions. This results in cost intensive repair measures and thus high life-cycle costs as well associated with an ecological burden. Furthermore, an insufficient understanding of degradation mechanisms and their underlying physical, chemical as well as biological processes currently impedes performance-oriented approaches to improve durability. In this regard a research project aims to unravel the potentially combined multiple deterioration mechanisms, integrating results of case studies and laboratory experiments. In this context a specific issue of this research activity is to evaluate the applicability of an accelerated degradation test that takes advantage of the impact of electrical fields on the stability of cement-based materials in permanent contact to aqueous environments. ... mehr

Zugehörige Institution(en) am KIT Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Poster
Publikationsjahr 2018
Sprache Englisch
Identifikator KITopen-ID: 1000084756
HGF-Programm 34.15.01 (POF III, LK 01)
Mineralische Konstruktionsmaterialien
Veranstaltung ICDCS 2018: 6th International Conference on Durability of Concrete Structures, Leeds, UK, July 18-20, 2018
Schlagwörter durability, cement-based coatings, drinking water storage, accelerated degradation.
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