![]() This saves the developer money in material cost and time in concrete/ steel assembly. Secondly, because the void forms create space under the foundation, less concrete and steel is needed to ensure rigidity. This means that where traditional foundations are susceptible to cracking, shifting, and breaking apart, waffle slab foundations are able to adapt to the always changing landscape. The main advantage to using these forms is that they provide a pocket of air that allows for soils to expand and contract beneath the foundation. These forms can be made from recycled plastic, Styrofoam, or in some cases fiberglass. With the Wafflemat Foundation System, patented brackets guide the cables across the base, ensuring a perfect fit every time.Ī major difference between waffle slab designs and a traditional slab is the integration of void forms that compensate for soil movement. ![]() Because the foundation is built directly on-grade, there is no trenching or off-haul of dirt necessary.Īfter Waffleboxes are arranged, post tensioned cables are installed in the waffle slab formwork to hold the weight. The concrete is poured on top of void forms called Waffleboxes or waffle pods. The process behind concrete waffle slab construction is objectively straight forward. In this post, we will discuss the most important factors to consider when choosing if a waffle concrete slab foundation is right for your construction project. While this type of foundation has been around for many years, it has recently grown in popularity due to its effectiveness in solving decade-old issues in the construction industry such as material cost, construction delays, and foundation failures.Īt Wafflemat, we want you to be informed about the possible caveats of waffle slab foundations so that you may make the decision that is right for you.
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