Geo Grout

Geo Grout's pressure grouting procedures and site specific mixes have been utilized for void filling applications, such as: abandoned underground pipes. concrete slab construction joints. structural steel pipe columns and heavy equipment base frames.
	Abandoned Underground Pipes Pressure grouting of abandoned underground pipes is carried out by initially installing grout plugs along with the required injection and vent ports at each end of the pipe. Pressure grouting is performed from the low end injection pipe. This method ensures total displacement of fluids within the pipe enclosure through the high end pipe vent. For this application, Geo Grout produces a grout mix with the following minimum properties: Grout has flow properties that permit total displacement of fluid from the pipe enclosure Grout will maintain its material integrity during injection and not mix with fluid present in the pipe enclosure Pressure grouting annular spaces of slip liners poses additional challenges, due to the minimal available void space between the liner and host pipe. Geo Grout has produced grout mixes to fill annular spaces of less than 20mm, over spans of 100m. Grout pressures to place these mixes are maintained within pipe manufacturers tolerance.

	Concrete Slab Construction Joints In concrete slab-on-grade construction, as the concrete cures, differential hydration between the upper and lower surface may occur. This will cause the concrete slab to curl upward, primarily along both sides of the construction joint, leaving a minor void space along the alignment of the construction joint. This problem becomes quite serious in laneways subject to heavy traffic. The continuous pounding effect at the joint interface, tends to increase the void size resulting in continual flexure of the slab and subsequent failure. Water intrusion will also expediate this process. Geo Grout has resolved this problem by injecting a high flow fine particle structural grout beneath the construction joint interface. The grout fills all available voids and restores the bearing surface of the subgrade. This process eliminates any further flexing of the slab, by locking the joint interface, and substantially increases the life span of the concrete slab.

	Structural Grouts To accommodate design specification requirements on building projects, Geo Grout has produced flowable structural grouts with compressive strengths up to 60 MPa. These grouts have been implemented on a variety of projects such as grouting of heavy equipment bases and steel pipe columns to enhance their load bearing capacity.

	Cellular Grout Geo Grout has utilized cellular grouts in dry environment applications requiring R Value enhancement. This light weight product can be produced with up to 80% air content, giving it it's insulating value provided it is placed in a water free environment. Typical applications where Geo Grout has used cellular grout include void fill of confined areas along foundation walls, trench fills over shallow frost susceptible utilities and as an infill in concrete block walls.