Raising Walls On Concrete Slabs

Use diamond tipped core drill to bore several large diameter holes through slab.

Raising walls on concrete slabs.

After the geolift has done its magical work the last thing left to do is patching up the holes. Drill 2 inch holes into the sunken concrete and pour a mixture of fly ash sand water and cement into the holes with a pump that produces 50 to 100 pounds of pressure. Sweeping dirt s debris over the existing concrete slab will allow bonding to take place. Lifting a sunken slab may be necessary to level the surface.

Not much pressure is required to do this since concrete slabs don t weight too much. Cleaning old concrete surface. Raise slab high enough to slide in the foam in manageable pieces. Polylevel is a structural grade polymer used as a superior alternative to mudjacking to raise and level broken concrete slabs patios driveways and sidewalks.

No need to cover the entire area beneath the slab with foam covering about 1 2 of the area or more will be enough. Stretch a tape measure across the concrete slab and mark the position of the wall s ends. The foam will fill up the parts of the concrete that are uneven and will raise it to the proper height. Run a chalk snap line.

Patch up the holes with concrete and your new driveway or sidewalk or walkway will look good as new. In time however concrete slabs can crack or sink due to pressure or from movement during settling. That ll allow the sunken slab to lift up. Position the snap line across the marks that indicate one of the wall s ends and snap a line to lay out the.

One of the best tools that can be clean all the debris out of crack is a stiff bristle broom. This includes removing sand dead leaves and gravel. Raising walls on a concrete slab posted in general discussion on may 4 2001 11 20am is it possible to build exterior walls on a slab floor and then raise them up like a house with a wood floor. The mixture which is like thick mortar easily raises the sunken slab.

Cut through slab with gas powered saw fitted with 12 inch diamond blade. Use a pneumatic rock hammer to drill a 12 inch deep hole through each core hole. How to build a wall on a concrete slab step 1.