Concrete Pop Out Repair

Come back after 24 hours and give the repairs a light sanding to blend them in.

Concrete pop out repair.

50 mm in diameter. Chisel the bottom of the hole where the pop out occurred to make it level. If you have an over abundance of pop outs in your concrete slab you need to consider resurfacing the patio. Also known as rock pops they are small cone shaped pieces of a concrete surface that separate due to focused internal pressure.

10 mm in diameter. You can patch the small holes by cleaning out the loose material and filling each one with a concrete patching material. Clean the hole with a stiff fiber or wire brush. For medium and large popouts use a hammer and chisel small chipping hammer or core drill to remove all remnants of deleterious substances and unsound concrete.

Repair for small popouts use a rotary hammer drill and drill out the remaining deleterious substance and unsound concrete to create a hole with a minimum depth of inch. Medium pop outs leave holes 0 4 to 2 in. Just add some powered pigment or grout to the clear matchcrete aliphatic polyurethane and you can match most any color. Using a cold chisel and a 3 pound sledgehammer undercut the hole by making the pop out wider at the bottom than at the top.

And large pop outs leave holes greater than 2 in. They ve been tackling these issues for a while and have some good solutions for both resurfacing and patching concrete. It s possible the concrete was weak at this location because the concrete finishers used extra water when they tooled the control joint with the steel tool. I would take a look at some of the products from quikrete.

See the short video below. Tap the chisel into the bottom of the hole sides to make a small ridge or undercut around the perimeter of the hole. 10 to 50 mm in diameter.