Epoxy Injection of Original Cracks

 

The original plan involved partial chipping off of the pebble wash area only then do epoxy injection of the floors in the Overhead Tanks and Blowers area.  However, as the contractor did the injections water comes out from underneath which indicated that the original waterproofing underneath may no longer be doing its job and the epoxy injections would be a waste.  Further meetings resulted in expanding the project to chipping of 100% or the entire roof deck floor area. 

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Update: Chipping works revealed what happened to the earlier epoxy injections

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20180419_114303 VIDEO