Undermining the concrete eliminates its external support making the material much more vulnerable to cracking through and breaking off.
How to break a concrete block wall.
You can use pneumatic or electric jackhammers and hammer chisels to aid in the removal process or you can use a sledgehammer hammer pry bar and chisels.
Make sure there is enough to fill all gaps and squeeze out a little.
The trick to breaking up concrete is to dig underneath the slab before hitting it with the hammer.
Measure the concrete block s length and divide this by two to determine the center point.
If you re needing a block of cement to set a post on the most inexpensive way to do it is to buy the 8x16x4 blocks and cut them in half.
Apply epoxy thickened to a mayonnaise consistency with 404 high density filler to the back of the furring strip.
Continue until the upper half of the wall has been toppled.
For example if the.
Break the concrete wall into small chunks.
How to split concrete retaining wall blocks step 1.
Determine if the wall is a load bearing wall before you begin.
Most load bearing block walls have been installed on concrete footings and.
Inspect the area for utility lines such as water and gas pipes electrical cables and telephone lines.
Place a straight edge across the block with the edge lined up to the center chalk mark.
Apply a wetout coat of epoxy to the block wall in the area where the furring will be installed and to the back of the 2 4 furring strip.
How to knock down a cinder block wall.
Trace along the straight.
Strike these joints all along the wall to break the blocks loose from the mortar.