The bottom concrete slab of this parking garage had many cracks that were between 1/4″ to 1/2″ wide. The cracks were left alone for many years allowing water to drain into them. Overtime the concrete slab started to sink because the water started to erode the sub-base.
To help prevent further erosion, we cleaned out the cracks with a saw blade and then filled them with a flexible sealant.
Stay tuned for more pictures in a couple of weeks of other parking garage repairs. We will next be repairing spalling concrete on the slab-on-grade.
Before Repairing Crack In Parking Garage
Concrete Crack Repair in Parking Garage
Here we are in San Antonio, Tx fixing a hairline foundation crack. We are using a special epoxy that is very low in viscosity; this allows the epoxy to flow deep into the crack and bond the two slabs back together. With this particular product, most cracks do not need to be chased out to allow for the material to be placed.
Once we have vacuumed out the crack, we applied the epoxy crack repair and then seeded sand over the crack and used a trowel to work the sand into the crack. Once the epoxy crack repair has cured, we used a rubbing stone to smooth out the repair. After the crack is repaired we will apply a decorative overlay to mask the crack even more.
If you have cracks in concrete that need to be repaired, give us a call at (210) 422-6116.
Before Repairing Foundation Crack
Filling The Crack With Epoxy
After The Crack Has Been Repaired