Tuesday, September 22, 2015

Raising a sunken concrete slab

Before ...                   After!

A section of a homeowner's concrete walkway leading to his front door from the driveway sunk in the ground over time, causing many people to trip. I decided using a jack to lift the slab would be the best option.




I had to dig deep enough to be able to use the jack, plus I wanted to have a solid deep concrete base to keep it from sinking or moving out of place again.



I used concrete blocks (along with the jack) to hold the slab in place and shoved 390 pounds of concrete (six and a half bags) up underneath the slab.





This slab is not going to move or sink again.


The corner edge of the slab was slightly lower than the driveway, so I used gray Sakrete Top-n Bond to adjust the height. This product works great. It can make an extremely thin layer and is very durable. I applied it with a trowel and kept the area moist while it cured.



The right corner area is still curing, looking slightly darker than the rest of the slab (above) ... Below, the corner section has dried showing the color of the gray Top'n Bond blended in with the rest of the concrete.


The slab fits very well and is secure. This section and many other areas around the homeowner's yard needed more decorative rock. I had rock brought in from a local landscaping company and filled in all of the low areas in the yard. Now this homeowner's property looks beautiful!





No comments:

Post a Comment