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Wafflemat
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== Wafflemat == From , the free encyclopedia A Wafflemat foundation is created by connecting a series of “Waffleboxes,” 8½” or 12” high, 19” x 19” thermal-grade heat resistant plastic forms set directly on grade. A monolithically poured post tension or rebar re-enforced concrete slab (usually 4” - 8”) is then installed, with no footings required. The monolithic pour creates concrete beams running throughout the footprint and perimeter. The completed Wafflemat slab then sits on the ground like a raft, the void areas underneath the slab formed by the placement of the Waffleboxes allowing for expansive soil movement. Wafflemat possesses great stiffness, with strength to resist differential swelling resulting from landscaping practices, surface drainage, or flooding from any source. Wafflemat does not require presoaking underlying soil pads, and there is no need for footings, meaning no earth spoils. And, since a Wafflemat slab is typically 13” - 14” above grade, it requires no gravel, sand or moisture barrier. Contents History Wafflemat and the Building Code Wafflemat Performance Structural Considerations Geotechnical Considerations Research Considerations Practical Considerations Environmental Considerations Green Building Environmental Awards Now References See Also
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