Specialty Foundation and Concrete Repair

Cement Grouting


In cement grouting, injection pipes are installed to a predetermined depth. A cement base mortar (grout) is then pumped under controlled pressure as the injection pipes are raised. The depths and spacing of the injection pipes are dictated by the field conditions encountered. This operation is continued until the desired results are achieved.

Cement grouting is typically used for increasing the bearing value of existing soil, stabilizing exisitng structures, raising existing structures, and water control.

Water Control


We manage water flow by utilizing cement and or chemical grouting or crack injection and soil modification using both hydrophilic and hydrophobic resins.

Chemical Grouting for Soil Solidification


With chemical grouting, injection pipes are installed to a predetermined depth. A sodium silicate base grout is then pumped under controlled pressure as the injection pipes are raised. This operation is continued until existing materials are solidified.

Soil solidification benefits include, but are not limited to, difficult excavation situations such as excavation situations such as excavations requiring vertical cuts, excavations inside existing structures, underpinning existing structures, and excavation adjacent to and below an existing structure.

Preplaced Aggregate Concrete


Preplaced Aggregate Concrete (PAC) is installed by placing a well graded washed aggregate into concrete forms. A cement base mortar is then carefully pumped under controlled pressure into these forms producing PAC.

PAC contains more aggregate and less cement than conventional concrete. This is beneficial because it provides less drying shrinkage & cracking to yield excellent patching materials both above and below water; excellent repair material for repairing waterline scour located on bridge piers, dam spillways, and lock walls; and reduces the possibility of honeycombing on projects where the concrete is required to contain a large amount of reinforcing steel and/or pipe.