Pouring a new layer of concrete over an existing walkway patio or porch will raise the level by several inches.
Pouring concrete over existing concrete sidewalk.
Add all of the concrete right away so none of the mixture has a chance to dry out.
Your sidewalk will be stronger and last longer than many professionally poured sidewalks.
Make sure you have enough concrete to fill the entire area to the depth you desire.
The condition of the existing slab is the primary factor that determines how long the new concrete will last.
In addition to the concrete walkway cost suppliers usually add a short load charge for small orders generally under 3 yds.
Long and 4 in thick walk required just over 4 yds of concrete.
Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan.
Disadvantages of pouring new concrete over existing concrete.
A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years.
Hi there pouring a new sidewalk over an existing one is a problem waiting to be solved in a future edition of breaktime using concrete chunks as fill would also qualify for this honour sometimes the easy route works but most of the time it doesn t.
Apply the new concrete over the primer.
The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk.
If the slab runs up to a door the raised surface may not provide the necessary clearance for the door to open.
Pouring concrete over an existing concrete driveway or sidewalk.
You can if the concrete is sound solid with minor cracks pitting scaling surface damage or just plain ugly.