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A hollow-core slab, a plank of concrete with hollowed-out tunnels inside of it, extending the full length of the concrete slab, is a precast concrete plank used in multi-story housing buildings, such as big apartment buildings. A double T (or double tee) is a flat slab of concrete with two beams underneath, resembling two I-beams attached together. This refers to a precast concrete structural product used for buildings that need support heavy loads, such as a parking structure, roof, or bridge. Precast concrete is used to make many aspects of bridge systems, including beams, deck slabs, archers, and girders. What are the types of precast concrete?Ĭommon types of precast products include the following: This, paired with the fact that precast concrete is often reinforced with steel rebar, is a recipe for increased strength and long-term ability to withstand heavy loads and traffic.
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Precast concrete is often stronger since the concrete is cured in a location specifically controlled to accommodate the best possible conditions for the concrete to set. Oftentimes this mold is reusable, which is why precast concrete is frequently used for making uniform pieces of a structure, like the multiple rectangular pieces of concrete used to create the wall panels of a concrete framed building. The concrete is cast in a mold, cured in a controlled environment, and then transferred to the construction site where it will actually be put in place. Precast concrete refers to the concrete part or piece of a structure that is made in one place and transferred to another for use. This is the benefit of precast concrete, where manufacturers are able to make molds to specific sizes to form multiple pieces of concrete, speeding up the overall construction process. Oftentimes, a structure requires many pieces of concrete in the same shape and size. Concrete is the most used building material in the world not only because of its strength but also because of its ability to be molded in many different shapes.