Sweeping dirt s debris over the existing concrete slab will allow bonding to take place.
Can concrete be poured on existing concrete.
For example you may want a new concrete floor in your basement to prevent water seepage.
You just have to consider the added height.
Whatever the reason you can pour a new concrete floor over existing concrete doing this will save you both time and money.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly.
One of the best tools that can be clean all the debris out of crack is a stiff bristle broom.
However this approach is not suitable option unless the existing concrete is in good shape structurally.
Pouring concrete over existing concrete sidewalk or patio surfaces is an option if the existing base is structurally sound.
New concrete is commonly poured over old concrete which may have been damaged for any reason for repairing purpose.
When i say bond the concrete you are lying on top off needs to be a rough finish like scabbled.
Choose a coarse aggregate concrete when pouring thicker slabs.
Perhaps you want a new concrete floor for your garage but you don t want the expense of having the existing floor removed.
Concrete surface suffers from wearing and damages over time disregard of its strength.
It is a good option if you need to fill a large area with something thick that will last a long time.
You could drill holes into the existing concrete surface and insert steel pins and then the mesh on top.
Concrete over concrete by.
Pouring concrete over an existing concrete driveway or sidewalk the same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk.
Engineer if you are laying pouring concrete over existing concrete there needs to be a bond.
This type of concrete is stronger but less dense so you can safely pour a large slab onto existing concrete.
However in most cases you can pour a new layer of concrete onto the existing one.
For instance surfaces with larger cracks heaving or settling conditions or where height cannot be raised replacement is a better solution.
Cleaning old concrete surface.
This includes removing sand dead leaves and gravel.
Coarse concrete has gravel or larger stones as an additive.