Step 2 combine a mortar mix with water in accordance with the mortar instructions.
How to make hole bigger concrete block wall.
Dampen the hole and surrounding area with water using a spray bottle.
The hole should be slightly smaller than the maximum width of the anchor.
Put 3 8 inch 0 95 cm plywood spacers in between the blocks.
How to cut a hole in cinder block walls.
Use a carpenter s level to.
Remove any concrete dust then press the anchor into the hole until it is flush with the surface.
It ll probably take about 10 minutes to core a 6 hole thru 6 of relatively new 4000psi concrete.
Chisel out any loose pieces of cinder block around the edges of the hole and brush away any loose debris with a nylon brush.
If this is a foundation wall i would make the hole for the dryer vent in the wood wall above the top of the cinder blocks and between the floor joists.
If your wall is straight line up the first layer of cinder blocks from one end to the other end.
How to easily drill a hole in cinder block without buying an expensive concrete drill bit.
If necessary tap in lightly with a hammer.
Lay out the first layer of cinder blocks.
Clean the hole and surrounding area with a wire brush.
Starting at one end of the wall lay out the cinder blocks end to end until you reach the first turn in the wall.
Vacuum any remaining dust or debris out of the hole.
Mortar is commonly used to patch concrete and cinder block.
Obtain a building permit from your local building authority.
Insert the concrete screw into the anchor and drive into the wall until secure.
Real simple and a core drill is definitely the way to go.
If the holes were drilled through interior block walls you may elect to use an expanding foam but if the holes were drilled through an exterior wall use a masonry patching compound made for that.
Mix a small portion.
If you do not obtain the necessary permit a building inspector may impose.