Raising Walls On Concrete Slabs

Hiring a professional service to lift or jack up the slab can be costly.

Raising walls on concrete slabs.

Polylevel is a structural grade polymer used as a superior alternative to mudjacking to raise and level broken concrete slabs patios driveways and sidewalks. You can avoid this expense if you do it yourself with the help of a jacking pump which can raise the concrete slab to the needed level. Not much pressure is required to do this since concrete slabs don t weight too much. Patch up the holes with concrete and your new driveway or sidewalk or walkway will look good as new.

Sweeping dirt s debris over the existing concrete slab will allow bonding to take place. That ll allow the sunken slab to lift up. Stretch a tape measure across the concrete slab and mark the position of the wall s ends. One of the best tools that can be clean all the debris out of crack is a stiff bristle broom.

Run a chalk snap line. Use a pneumatic rock hammer to drill a 12 inch deep hole through each core hole. No need to cover the entire area beneath the slab with foam covering about 1 2 of the area or more will be enough. How to build a wall on a concrete slab step 1.

Steps involved in pouring concrete over existing concrete slab step 1. Cleaning old concrete surface. Raise slab high enough to slide in the foam in manageable pieces. Position the snap line across the marks that indicate one of the wall s ends and snap a line to lay out the.

Lifting a sunken slab may be necessary to level the surface. In time however concrete slabs can crack or sink due to pressure or from movement during settling. 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. Use diamond tipped core drill to bore several large diameter holes through slab.

The mixture which is like thick mortar easily raises the sunken slab. 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. This includes removing sand dead leaves and gravel.