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What is Geo-Joist?
Geo-Joist is CMI’s engineered structural slab, stay-in-place formwork, designed to span unstable soils, reduce concrete volume, and create energy-efficient, frost-protected foundations. Using EPS Geo-Joist forms with cast-in-place concrete joists, the system reduces slab thickness and weight while increasing strength and thermal performance.
It has been used successfully for commercial building foundations, machine bases, elevated boardwalks and docks. Generally Helical Piles or other deep foundation elements are incorporated into the design to achieve a frost-protected foundation as shallow as 18” below grade. Each Geo-Joist project is designed by our team to meet your specific set of needs.
Frost - Protected Foundations
As shallow as 18" below grade, and reduced fill requirements.
Advantages of Geo-Joist
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Due to cast-in-place joists, Geo-Joist significantly reduces slab thickness and weight while increasing the strength.
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Geo-Joist creates a frost-protected structure eliminating the need for frost walls and saves a considerable amount in the cost of excavation and the hauling of spoils.
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Geo-Joist is offered in a Variety of thicknesses, significantly reducing the need for structural fill.
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Insulating EPS framework provides excellent energy performance and acts as a vapor barrier.
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Heated floor systems work well with Geo-Joist thanks to its excellent insulation properties.
Prefer to do it yourself? CMI provides both the sale and install of Geo-Joist.
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