Concrete Repair and Rehabilitation of Salt Works Jetty, Jamnagar, Gujarat
A unique structure of about 245 metres long with a berth of 61 metres located in a remote area.
Direct and continuous exposure of the jetty structure to the sea water and air resulted in
high deterioration and corrosion of the jetty.
Rehabilitation of the jetty involved coating the entire exposed concrete surface with a high-performance anti-corrosive coating, repairing the concrete using high strength, self curing, structural repair mortars, polyurethane injection grout for strengthening of the carbonated concrete and finally, an acrylic protective coating. This project was completed in a record period of three months.
Remove loose concrete and expose the steel
Buff the steel with grinders to remove the scales of rust
Apply the rust converter and after 24 hours again buff the steel with grinders to remove the residual rust
Clean the entire substrate with water jet
Apply high performance, anti-corrosive coating AB COR 926 LV on rebars
Weld new steel where corrosion is more than 25%
Weld the old and new steel
AB POX 002, an epoxy based primer, is applied on the concrete as a bond coat
Apply MortaRep SuperStrong, a spray-applied repair mortar with self-curing properties
Thickness is built up in a single layer
Inject Polyurethane (PUR) Grout 3011 to strengthen the concrete
The finish after application of repair mortar
Apply high-performance AB COR 971 acrylic coating
Final finish of the repaired jetty
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