Pouring Concrete Over Existing Concrete Sidewalk

Long and 4 in thick walk required just over 4 yds of concrete.

Pouring concrete over existing concrete sidewalk.

If the slab runs up to a door the raised surface may not provide the necessary clearance for the door to open. Pouring a new layer of concrete over an existing walkway patio or porch will raise the level by several inches. The condition of the existing slab is the primary factor that determines how long the new concrete will last. Pouring concrete over an existing concrete driveway or sidewalk.

If the concrete has multiple deep cracks extending all the way through its depth pouring concrete over existing sidewalk driveway or patio surfaces generally is a waste of time. Disadvantages of pouring new concrete over existing concrete. 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. In addition to the concrete walkway cost suppliers usually add a short load charge for small orders generally under 3 yds.

The same principles as above apply to pouring concrete over an existing concrete driveway or sidewalk. 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. By the same token if you attempt to clean the surface and the concrete just keeps breaking apart into bits of sand and gravel replacement is your best option.

Apply the new concrete over the primer. Pour concrete onto the existing slab until it is around where you want the final level to be. A well poured concrete slab with a deep sturdy foundation can last for 30 to 40 years.