A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effectiveness of Sacrificial Anodes in High-Resistivity Shotcrete Repairs
This study investigated the use of discrete sacrificial anodes to improve the durability and extend the life of a shotcrete patch repair in a column. Three columns were used in the investigation. In two columns, anodes were placed around the perimeter of the repair area. In a third column, used as a control, anodes were not placed inside the repair area. Shotcrete was then placed in the repair areas of all three columns. The study found that the current density level needed to improve the resistance of the steel to chloride-induced corrosion is being met. In addition, the anode current is able to reach a distance of 16 cm from the anode center, meeting the requirements for cathodic prevention within this region. A cost analysis, using the capital recovery method, indicated that repairs using shotcrete plus cathodic protection will cost less than repairs using shotcrete alone.
Effectiveness of Sacrificial Anodes in High-Resistivity Shotcrete Repairs
This study investigated the use of discrete sacrificial anodes to improve the durability and extend the life of a shotcrete patch repair in a column. Three columns were used in the investigation. In two columns, anodes were placed around the perimeter of the repair area. In a third column, used as a control, anodes were not placed inside the repair area. Shotcrete was then placed in the repair areas of all three columns. The study found that the current density level needed to improve the resistance of the steel to chloride-induced corrosion is being met. In addition, the anode current is able to reach a distance of 16 cm from the anode center, meeting the requirements for cathodic prevention within this region. A cost analysis, using the capital recovery method, indicated that repairs using shotcrete plus cathodic protection will cost less than repairs using shotcrete alone.
Effectiveness of Sacrificial Anodes in High-Resistivity Shotcrete Repairs
M. C. Brown (author) / S. R. Sharp (author)
2005
32 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Corrosion & Corrosion Inhibition , Cathodic protection , Reinforced concrete , Shotcrete , Repair , Anodes , Effectiveness , Durability , Chloride , Corrosion prevention , Steels , Recovery , Cost analysis , Columns , Highway bridges
Process dependence of shotcrete for repairs
| Tema Archive | 2005
Shotcrete for repairs: issues and challenges
| TIBKAT | 1996
Process dependence of shotcrete for repairs
| British Library Online Contents | 2005
Process dependence of shotcrete for repairs
| British Library Online Contents | 2005
Shotcrete for repairs: issues and challenges
| British Library Conference Proceedings | 1996