Attn. concrete gurus

[MINERDOUG]

My front porch has spalling concrete on it's vertical walls, I took an air chisel to it and got it down to a good solid surface, what should i use to spread on the old surface to refinish it?

 

[brownbagg]

plywood

 

[ard]

lol

But seriously.. does it freeze where this porch lives? What do you want it to look like?

"refinish"? You could paint it; parge on more concrete; brick face, tile, stone, blah blah

 

[Flail]

Is this brand new concrete that froze?
Is this old concrete?
Is this exposed to salt or other chemicals?
What do you want it to look like when done? Stucco-like, original concrete, tile, granite?
More data = better answers.

 

[matt_i]

Here's where you hit it with the cultured stone veneer.

 

[Larryjones]

Paint it with a bonding agent of portland cement and water, thin like latex paint. Then trowel on a layer of quickset morter. Type S.

 

[MINERDOUG]

thanks for the replies, the cement is over 20 yrs old, it had been painted before but evidently it wasnt taken down to a good hard surface, i would like to paint it again once it is finished right. I live in Wyoming cold country, 25 deg this morning but warming up next week

 

[Always_Thinkin]

To add to Larryjones's comment, i would recommend around the entire perimeter of the repair area that you have sharp perpendicular face cut into the concrete. Then chip out the concrete to a more uniform depth across the entire repair area. This is to prevent feather edges flaking off in the future. Also do your repair work in above freezing temperatures.