If the concrete is too thick to break up with a sledgehammer you can use an electric jackhammer instead.
Cheap ways to break up concrete.
Dig about 1 foot inward.
To aid in breaking up the concrete use a spud bar in conjunction with the jackhammer.
Pry off stubborn pieces.
Over the next 24 hours the agent expands with about 18 000 lb.
Dig under the concrete.
It can cut clean lines or remove the surface as deeply as desired.
Dig out the soil gravel or other material from under the concrete using a shovel and a pickax.
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.
Move the concrete chunks with a hand truck.
For more than four inches thick use a demolition hammer.
Hydrodemolition is done with various devices from handheld guns to robotic equipment.
Give it a try first before moving on to heavier rental equipment.
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.
These chemical powders are mixed with water and poured into 1 1 2 in to 2 in dia.
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.
Start to break the concrete starting six inches from the edge and working your way in.
For slabs less than four inches thick use a sledgehammer.