[jdrunbike]

Hello,

What is the best way to restore the finish on concrete that has lost it's original smooth finish? The surfaces I'd like to restore are a driveway and a front walkway. Please see attached pic to understand what I'm talking about - you can see where the original smooth finish has worn away to expose the rough stuff below.

Thanks!


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[Ron6519]

Looks like whoever finished the surface didn't know when to stop troweling and brought up too much cream. The whole area in the photo suffers the same fate. If the whole driveway is like this it will continue to spall.
Ron

 

[jdrunbike]

Thanks for helping ID the cause of the problem!

Do you/anyone have any suggestions on how to repair it and restore the finish?

Thanks!

 

[stadry]

that + 'blessing' the surface so the finishers could catch up w/troweling, etc.

your best bet is to pressure wash ( 4Kpsi & 4gps ) the surface to clean up & see what damage is necessary,,, this is our work & we'd also include scarifying w/9hp machine, too,,, we'd then pick a polymer-modified cementitious resurfacing material ( NOT avail in ANY apron/vest store )

 

[mustangmike3789]

looks like a watered down weak mix and over troweled too. im gonna guess that the rest of the concrete is soft too. if it is soft all the way through it needs to be replaced not resurfaced.

 

[stadry]

mike makes a good point but you won't know til you prep for repairs,,, 1 of the reasons we use 4Kpsi is to discover how hard the existing conc really is,,, sometimes its soft & needs replacing, NOT repair :furious: