Is the common term used to describe the pumping of grouts and mortars for many different applications

Slab Jacking

Is an old term used to denote lifting of concrete slabs.  It is understood today as being the use of neet fluid cement slurries to lift slabs.  This process is based on pressure x area = Force.

Mud Jacking

Is the same as slab jacking except in the process the material used is a mix of lime and soils to perform the process.

Subsidence

Is the result of any structure settling to a lower level due to gravity.  The causes of subsidence are Erosion, Compaction, and or Expansive Clays.  Erosion is when fine soil material is removed by running water.  Compaction or natural settlement occurs when soil particles take up less  volume as they move and fit together. Poor compaction on new structures is very common.  Expansive Clays swell when their moisture content rises and shrink when their moisture content  lowers. 

Compaction grouting

Is the process where the injection of a stiffer sand cement grout is pump within a soil strata and the pressure dynamically compacts the soils.  

Microfine Cements

Are cement products made up of very fine particles that has a relatively low viscosity but still provides a substantial compressive strength. The type of grouts are used in soil stabilization projects 

Soil Stabilization 

Is the process of  injecting a cement grout into the ground to solidify a mass of soils. The characteristic of soft soils that makes them soft is the air content within the mass. The injection process actually displaces the air leaving the cement grout  which prevents any further settling.

Sand Stabilization

Is a term given to the repair of settling sands. In our region typically a sodium silicate grout is injected into the sands to stabilize them.  

Curtain Grouting or the grouting of rock fractures

Is the grouting that is done prior to constructing a dam.  It is the process of drilling into rock and pumping in a grout  to stop water flow below the dam after it is finally filled with water.

Foundation Grouting

Is the process of pumping cement under foundations in order to stabilize it. This is not a process that we perform for it is difficult

To get enough grout into the ground to add enough bearing capacity to support a loaded structure.

Epoxy Injection

Is the pumping of epoxy resins into cracks in concrete structures. It performs a lot like a superglue for concrete that bonds or mends the cracked structure.

Urethane Injection 

Is a similar process to Epoxy injection but instead an expandable urethane grout is injected usually in order to seal below grade foundations from leaking water in shrinkage cracks or settlement cracks.

Pipe Abandonment

Is the process in which a pipe or portion of a pipe is properly, completely filled with a non shrink structural grout.

Structural Grouts

Are typically a high compressive strength cement based or epoxy based material specially formulated not to shrink during the curing process

Void Fill

Is the process of pumping a cement grout material just beneath the structure, into the voids caused from subsidence.

Undersealing

Is the process of pumping structural grouts below poured concrete  slabs that are moving due to curling of the slab or natural settlement  that may occur below them. Undersealing is widely used under warehouse floors where heavy  fork trucks make the joints of the slabs rock.