Holes drilled in the concrete.
Cheap ways to break up concrete.
Move the concrete chunks with a hand truck.
Dig under the concrete.
Pry off stubborn pieces.
For more than four inches thick use a demolition hammer.
Jam the flat end of the spud bar into the cracks formed by the jackhammer firmly grip the handle with both hands and use leverage to pry chunks of concrete from the pad for removal.
To break up concrete start by covering the concrete with a plastic sheet to protect nearby items from flying debris.
For thin slabs of concrete use a sledgehammer to break it up.
The surest way to decide whether to use a sledgehammer or a jackhammer is to experiment a few days before you begin full scale demolition.
Breaking stone or concrete this way is clean quiet safe controllable and relatively inexpensive.
A sledge can be surprisingly effective in breaking up concrete up to about 4 in.
If the concrete is too thick to break up with a sledgehammer you can use an electric jackhammer instead.
Dig about 1 foot inward.
To aid in breaking up the concrete use a spud bar in conjunction with the jackhammer.
The water is directed at the concrete at 20 000 psi and 10 to 15 gallons per minute for handheld guns.
Hydrodemolition is done with various devices from handheld guns to robotic equipment.
Over the next 24 hours the agent expands with about 18 000 lb.
These chemical powders are mixed with water and poured into 1 1 2 in to 2 in dia.
Start to break the concrete starting six inches from the edge and working your way in.
It can cut clean lines or remove the surface as deeply as desired.