How to repair a low spot in a concrete slab?

Question

I have a concrete basketball court that is divided into 8 sections. One of the sections collects water and now has a permate low spot. Is it possible to correct this by leveling off the low spot by adding quick creat? If so what is the best way to repair?

Btw, the court is located in the back yard. An area impossible to be reached by a concrete truck. I'm trying to repair the one section without removing whats already there.

Answer 1

a cheap way but not the correct way is to just saw cut the expansion joint all the way through and let the water drain off of it, you could even cut in a 4 inch grated drain assembly.if you are wanting the water to drain and a looks good thing defiantly cut the expansion joints and bust out the slab in question and pitch the new slab correctly.

Answer 2

Ordinary latex paint added to concrete acts as a hardener and a bonder.

Circle the low spot with a line of white latex paint as a marker. Then take and paint with latex paint the low spot just minutes prior to application of the patch as described in the following. Then mix up a mix of 5 quarts of very coarse sand to 3 quarts of Portland Cement and add to that 1/2 cup of latex paint plus add water till the mix reaches consistency of a heavy batter. Pour into the low spot as needed and level off with a board. The after an hour or so when then cement has set a bit take a broom or brush and give it a texture similar to the sidewalk around. Do this when the weather is cool and dark and the cement stays wet and hardens to max strength that way.

I have repaired my concrete walk to house 5 years ago in a low spot right near where the roof line is and it has lasted thru those 5 winters of Chicago and looks as good as rest of walkway today. I have used this method on several other repairs and it works just fine.

Answer 3

Spot On Concrete

Answer 4

To do it right and assure a continuous surface you will need to rent a chopping machine (Jackhammer) or a construction saw that has a concrete cutting blade and remove the low spot and mix your own concrete from bags in the yard. It does not sound like a big job to me.
You can call a contractor to give you an estimate and he will tell you what he will do.No thin coating will last:(
Go from there. Good luck

Answer 5

Don't know size of this low spot, but you can purchase an epoxy liquid that is self levelling - just pour it into the middle of the low spot and it will level itself out. No idea what it would be called in the states but your big hardware stoes should have something similar. I would suggest sprinkling some sand on the top of the stuff after you pour it and before it sets as it's bound to be slippery, particularly if it is wet.

Answer 6

I have never seen anything that is very durable for for thin repairs on concrete although if your area does not experience freeze and thaw cycles there might be something available check at your local building supply store.

Answer 7

the right way to do it would be to saw out thje bad and replace with new. but they do make a pretty durrable product called "thinpatch". it comes in a red and white bag and should be available at your neighborhood concrete supply, or hardware store. it's about 18 bucks a bag but well worth it if you're try for the easy way out.

Answer 8

when it has rained and the low spot is full of water take some kind of marker or spray paint and mark your low spot and measure it in the middle and then put the cement in the middle to that dept and level towards the out side lines and you have it fixed

Answer 9

you should call a contractor, could be something much,much,much more serous. check in with public records to make sure you arent dealing with a toxic waste dump or something. get a couple bags of cement, a wheel barrow, and some water mix the cement and water till creamy apply. hope this helps.