A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cathodic Protection of Bridge Decks in Pennsylvania
This report presents discussion of the types of bridge deck cathodic systems currently being evaluated in Pennsylvania. The systems are: (1) an impressed current system utilizing a two-inch conductive coke-asphalt and a two-inch hot asphalt wearing surface, with eight zones controlled by zinc reference cells and each zone having four silicon-cast iron anodes; (2) a non-overlay, impressed current system utilizing 1/2-inch by 3/4-inch slots at two-foot spacing longitudinally with platinized niobium copper anode wires and conductive grout placed in the slots; six zones are controlled by zinc reference cells; (3) a non-overlay, constant current system where the total deck is one zone and the current the same throughout; sawed slots, 3/4-inch by 3/4-inch are placed on one-foot centers longitudinally with high purity carbon strand as secondary anodes; three transverse slots contain the platinized wires as primary anodes; this electrically redundant system has the slots filled with conductive grout; and (4) strips of conductive grout are spread over transverse primary anode and one-foot spaced carbon strands on a patched and scarified deck. A latex-modified concrete overlay is provided as a wearing surface.
Cathodic Protection of Bridge Decks in Pennsylvania
This report presents discussion of the types of bridge deck cathodic systems currently being evaluated in Pennsylvania. The systems are: (1) an impressed current system utilizing a two-inch conductive coke-asphalt and a two-inch hot asphalt wearing surface, with eight zones controlled by zinc reference cells and each zone having four silicon-cast iron anodes; (2) a non-overlay, impressed current system utilizing 1/2-inch by 3/4-inch slots at two-foot spacing longitudinally with platinized niobium copper anode wires and conductive grout placed in the slots; six zones are controlled by zinc reference cells; (3) a non-overlay, constant current system where the total deck is one zone and the current the same throughout; sawed slots, 3/4-inch by 3/4-inch are placed on one-foot centers longitudinally with high purity carbon strand as secondary anodes; three transverse slots contain the platinized wires as primary anodes; this electrically redundant system has the slots filled with conductive grout; and (4) strips of conductive grout are spread over transverse primary anode and one-foot spaced carbon strands on a patched and scarified deck. A latex-modified concrete overlay is provided as a wearing surface.
Cathodic Protection of Bridge Decks in Pennsylvania
R. Turgeon (author)
1984
45 pages
Report
No indication
English
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