Raising Walls On Concrete Pad

Concrete footings and slabs on grade typically require a concrete of 3 500 to 4 000 psi.

Raising walls on concrete pad.

The first step is to drill holes in the problem concrete. Sometimes slabs settle over time allowing annoying puddles to form whenever it rains. Once the holes have been set the geolift is injected in between the concrete and the dirt. Use a hydraulic concrete pump to pump the grout through the core drill holes.

Use a pneumatic rock hammer to drill a 12 inch deep hole through each core hole. Polylevel is a structural grade polymer used as a superior alternative to mudjacking to raise and level broken concrete slabs patios driveways and sidewalks. Holes should be no less than six inches away from the edge of the concrete. There are several reasons why you might want to raise the level of a concrete slab.

The mixture which is like thick mortar easily raises the sunken slab. This process is called mud jacking and it s a job best left to pros with the equipment to do it because the material has to be injected under pressure to do the job. In a mobile mixer blend a grout mixture of sand silt and portland cement. Suspended slabs beams and girders as often found in bridges require 3 500 to 5 000 psi.

Not much pressure is required to do this since concrete slabs don t weight too much. 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. The foam will fill up the parts of the concrete that are uneven and will raise it to the proper height. Traditional concrete walls and columns tend to range from 3 000 to 5 000 psi while 4 000 to 5 000 psi is needed for pavement.

Mix the grout with water in auger. Slabs also can crack flake or deteriorate making them more of a liability than an asset.