I'm building a shop building on an existing slab that has some big cracks and chips. Is there any easy way to pour a thin layer of concrete over the old floor. Other suggestions?
2006-06-06 04:16:57 · 9 answers · asked by who_me? 2 in Home & Garden ➔ Maintenance & Repairs
only way to pour over old concrete is to drill holes 2 ft on center and install 1/2" rebar in the holes that stick up about 3 ". then when u repour over u should pour the new concrete 4" . put a metal "key-way" in about every 10 ft. this will allow for expansion. also install expansion board around the walls at the height of the new finished floor. this will allow for expansion of the concrete.
another idea is to use hydraulic cement to fill the large cracks and holes. then use a concrete paint with sand texture to it. that way it will not be slippery. we use sand textured paint on all of our pours in shops for people.
lic. gen. contractor
2006-06-06 05:32:41 · answer #1 · answered by bigg_dogg44 6 · 0⤊ 0⤋
We tried that with a concrete patio that had some cracks in it. The moisture still managed to get into the cracks, and the new top layer cracked, too. We ended up removing and replacing the whole thing, which we were told we should have just done to begin with.
Best of luck to you ... hope yours goes better than ours went!
2006-06-06 04:21:30 · answer #2 · answered by flamingo_sandy 6 · 0⤊ 0⤋
It's not good to pour new concrete on old conrete. It will chip and peel in a layer. It won't bond to the old floor. Go to your local home improvement store and ask them about concrete paint and filler. They'll help you with the best product in your area.
2006-06-06 04:19:37 · answer #3 · answered by Stacy R 6 · 0⤊ 0⤋
Yes, pour the layer of concrete, then paint at least 2 coats and five coats of polyurethane (this will strengthen the structure).
The old cracks would be outlined, but that's the patina or character that will make it attractive.
2006-06-06 04:24:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
the thinned the concrete you put on top, the more problems you will have.if you can't make the covering at least 4" thick, i would tear out the old blocks and start over
2006-06-06 04:46:46 · answer #5 · answered by Anonymous · 0⤊ 0⤋
great answer Paul, i might additionally upload that it is a number of weight to boot 6 inches of concrete(unique) plus six inches of gravel plus six inches of concrete is a ton of weight. A foot and a a million/2 of rock and urban, whoa niily! you will possibly want a soils engineer record previously even attempting it. you're lots extra perfect off with the raised deck answer Paul proposed. extra value-effective extra perfect
2016-10-30 07:37:33 · answer #6 · answered by ? 4 · 0⤊ 0⤋
seems like you have the best plan.
2006-06-06 04:19:26 · answer #7 · answered by ? 6 · 0⤊ 0⤋
yes you can do that
2006-06-06 04:21:27 · answer #8 · answered by idontkno 7 · 0⤊ 0⤋
cover your eyes.................
2006-06-06 04:19:40 · answer #9 · answered by stumped 4 · 0⤊ 0⤋