![]() Prime Flex 910 and 920 are the ideal product for permeation grouting. Once cured, the Prime Flex “glues” the soil particles together. The expansion is limited due to the low levels of catalyst. However, permeation grouting is a process by which a much slower reacting foam is injected into the soil to permeate the soil matrix prior to expanding. The foam fills voids in the immediate area and compacts the surrounding soil using expansive pressure. Compaction grouting is a process by which rapidly expanding polyurethane foam (fully expanded in 30 seconds) is injected into the ground. This can be accomplished by either compaction grouting or permeation grouting. This can be accomplished with a two-step process.įirst, voids are filled and loosely compacted soil is consolidated. Often, it is necessary to lift a concrete highway, warehouse floor slab, or even a building due to settlement. The foam will fully expand and will be traffic ready within 15 minutes (85% strength) of application. The injected mixture flows into the voids and fills the cavities by expanding up to 20 times (depending on formulation). Slab stabilization is accomplished by injecting structural foam such as Precision Lift 3.5# and Precision Lift 4.75# products manufactured by Prime Resins. ![]() Slab lifting can put your foundation back to their original position using the Proprietary Precision Lift process. For instance, concrete slabs that are settling or rocking can be stabilized by injecting structural polyurethane foam into the voids beneath the slabs. Polyurethane is one of many chemical grout injection solutions provided by Foundation Professionals. ![]() Polyurethane Foam Stabilization and Lifting in Florida Compaction grouting results from injecting a two-component, rapid set, highly expansive structural foam (Prime Flex 985 series) which fills voids and compacts soil by its expansive pressure. ![]() Permeation grouting saturates the soil with an extremely low viscosity resin (Prime Flex 910 injected neat or Hydro Gel SX mixed with water). Prime Resins manufactures polyurethane resins for both permeation and compaction grouting operations. As the popularity of trenchless technology continues to grow, engineers and contractors are finding that they can use chemical grout to solve a multitude of problems caused by poor soil or excessive water conditions in Tampa, Florida or anywhere in Florida for that matter. A major advantage of chemical grouting is the ability to strengthen existing soils without the need for excavation or disruption of facility operations. In this extremely specialized field of soil stabilization and soil settling repair, chemical grouts are used to fill voids, stabilize soil, and create sub-grade grout barriers below roadways, in earthen dams, coastal seawalls, underground vaults, and tunnel boring operations. ![]()
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