Heavy maintenance work going on by @chennaicorp as rains have stopped. Subway leaks are being fixed through grouting method where they spray polyurethane liquid foam with high pressure. The liquid becomes hard solid in few minutes and arrests the leak, say officials. (1/3)
@omjasvinTOI @chennaicorp Heavy maintenance?! If you analyse, The issues r created by sheer negligence & lack of collating data to address the flooding. Every year the same sordid story is published during #ChennaiRains Got to be some kind of joke that Government's after government fail to sort it. #EMIT
@omjasvinTOI @chennaicorp They should use it in Thillai Ganga Nagar Subway. It's leaking there too.
@omjasvinTOI @chennaicorp PU grouting is done on Concrete structures not on brick works, they are porous in nature, will only leak from other places.. looks like costlier ways of fixing things to earn more money for contractors and political ecosystem..
@omjasvinTOI @chennaicorp Is it an accepted environment friendly practice? Hope people do not get new diseases!
@omjasvinTOI @chennaicorp This is usually done in D wall gaps in Metro UG stations.
@omjasvinTOI @chennaicorp This is useful only for minor leaks. If arrested in one place water find its way elsewhere
@omjasvinTOI @chennaicorp It’s just terrible to see the workers with no protective gear whatsoever and proper footwear either. Can’t @chennaicorp provide them basic stuff?
@omjasvinTOI @chennaicorp Grouting Karna hai contact me