Earth Tech Grouting Brochure

Grouting: An Effective Solution Remember how we said that the flowing water enlarges the passageways in the limestone and allows soil particles to be carried deep into the earth? Grouting seals off those passageways in the Limestone and prevents the soil from moving downward. Initially, the geotechnical engineer develops a plan locating the grout injection points within the effected area. Earth Tech then drills steel casing into the ground, all the way to the top of the Limestone. These pipes will be used to inject the grout material at the top of the problem area and into the soils above to restore the stability of your home. The grout material is a cement based product that Earth Tech normally produces in our own batch plant.

It looks like mortar that you might lay bricks with. Grout is delivered in concrete mixer trucks which dispense the material into the pump. The grout travels through lines and hoses that are attached to the injection pipes that were drilled into the ground. As it is injected under pressure, the grout fills the voids and passageways and densifies the soil that has been weakened as a result of the sinkhole activity. As the injection pipes are withdrawn, each zone of soil is treated from the bottom of the drill hole to the top. This is how we can be sure your sinkhole problem is stabilized.