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AR15.COM
6/25/2007 11:35:41 AM EDT
I have a walkway inside my arctice entryway that is probably 10'x 3'
It is flanked on both sides by a block wall.  This area is uninsulated and will see temps as low as -40F in the wintertime (though radiant heat probably keeps it much warmer than that.
There is a spot about 6"x3"x2" where a chunk of the concerete has come up.  This spot is about half way and sets against the block wall.
I want to put down the garage floor rusteloum paint stuff(rubberized paint), but think I should fix that spot prior to doing it.

How do I patch this spot?
6/26/2007 2:34:19 PM EDT
[#1]
I like to use vinyl concrete mix for small concrete repairs. I've used it in coolers and near the water in NYC (not as cold as where you are!) and never have had a patch come loose. It cost 3X more then redimix but it's worth it.

Chip out and loose concrete and thin edges if there are any and sweep or blow out and dust or sand. Mix your cement and put a little in the hole and smear it to the sides of the repair, make sure its sticking good then fill the rest of the hole. You can use a 6" plastic putty knife if you dont want to buy a trowel. Good luck!
6/26/2007 3:32:49 PM EDT
[#2]
I don't have any advice on how to repair it.  I would however try to figure out what caused the chunk to come up before I fixed the spot.
6/27/2007 2:20:25 PM EDT
[#3]

Quoted:
I don't have any advice on how to repair it.  I would however try to figure out what caused the chunk to come up before I fixed the spot.


My guess is someone dropped something on it initially and then it grew from there
When we bought the house it was an estate sale and needless to say it hadnt been taken the best care of.
6/27/2007 2:20:56 PM EDT
[#4]

Quoted:
I like to use vinyl concrete mix for small concrete repairs. I've used it in coolers and near the water in NYC (not as cold as where you are!) and never have had a patch come loose. It cost 3X more then redimix but it's worth it.

Chip out and loose concrete and thin edges if there are any and sweep or blow out and dust or sand. Mix your cement and put a little in the hole and smear it to the sides of the repair, make sure its sticking good then fill the rest of the hole. You can use a 6" plastic putty knife if you dont want to buy a trowel. Good luck!



Should I clean it with acid or anything prior to increase the adhesion?
6/28/2007 4:56:02 PM EDT
[#5]

Quoted:
Just remember that if you paint it you will eventually have to repaint.  I have a covered porch floor that I just had to repaint and I will never paint concrete again.  The maintenance on unpainted is much easier.


Tis isnt really paint
Its the stuff made to coat (more rubber than paint) a garage floor.  Its much easier to sweep up dirt and dog hair, stuff we seem to have an excess of at my house
6/30/2007 1:06:59 PM EDT
[#6]
quickcrete makes a concrete patch it's inexspensive and pretty easy to work with when it's dry use a grinder to sand down evenly then put your paint down you can find that stuff at home depot or lowe's