Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cost effective cathodic protection system for concrete structures
A thin layer of semi-conductive material was developed and combined with mixed metal oxide (MMO)-coated titanium tape anodes for cathodic protection (CP) of reinforced concrete structures This system overcomes several problems experienced with existing CP systems, including poor CP current distribution caused by near-short circuits and shallow concrete cover, acid generation at the anode concrete interface, and dryness of the anode-concrete interface for some structures Simplified engineering of the anode and installation provide a more user-friendly and cost-effective approach. The MMO titanium tape anode system covered with a thin (5 mm) semi-conductive layer demonstrated outstanding performance. The computer modeling indicated that the system can provide more uniform CP current distribution than slotted ribbon mesh anode systems. The new system is simple and costeffective to install because the cutting or drilling of concrete is not required. Field trials have indicated that the system is highly cost-effective, with the installation costs significantly lower than conventional CP systems such as slotted or concrete overlay type. Field trials have also indicated that this system successfully operated on a dry concrete structure that was not directly exposed to occasional wet conditions. Due to the simple configuration of the system, complex CP engineering and testing during the installation are not required.
Cost effective cathodic protection system for concrete structures
A thin layer of semi-conductive material was developed and combined with mixed metal oxide (MMO)-coated titanium tape anodes for cathodic protection (CP) of reinforced concrete structures This system overcomes several problems experienced with existing CP systems, including poor CP current distribution caused by near-short circuits and shallow concrete cover, acid generation at the anode concrete interface, and dryness of the anode-concrete interface for some structures Simplified engineering of the anode and installation provide a more user-friendly and cost-effective approach. The MMO titanium tape anode system covered with a thin (5 mm) semi-conductive layer demonstrated outstanding performance. The computer modeling indicated that the system can provide more uniform CP current distribution than slotted ribbon mesh anode systems. The new system is simple and costeffective to install because the cutting or drilling of concrete is not required. Field trials have indicated that the system is highly cost-effective, with the installation costs significantly lower than conventional CP systems such as slotted or concrete overlay type. Field trials have also indicated that this system successfully operated on a dry concrete structure that was not directly exposed to occasional wet conditions. Due to the simple configuration of the system, complex CP engineering and testing during the installation are not required.
Cost effective cathodic protection system for concrete structures
Funahashi, Miki (Autor:in) / Sirola, Todd (Autor:in) / McIntaggart, Dennis (Autor:in)
Materials Performance ; 53 ; 32-37
2014
6 Seiten, Bilder, Tabellen, 3 Quellen
Aufsatz (Zeitschrift)
Englisch
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