A concrete tube, or concrete core, is a device used to pour concrete for construction applications. These devices are typically constructed from cardboard or other similar fibrous materials, and they serve as the means for containing and shaping the concrete. With a concrete tube in place, construction workers can pour liquid concrete into the cardboard core and allow it to solidify, allowing for the construction of large concrete columns and support structures.
Concrete tubes are constructed by winding cardboard into spiraling layers. The spiraled cardboard is held together with an adhesive, and additional layers of spiraled cardboard are added on until the desired thickness is achieved. The thickness of the tube determines the strength and durability of the tube. Therefore, for large quantities of concrete, a thicker tube is required to handle the increased pressure without bursting. Along with varied thicknesses, manufacturers also fabricate concrete cores in a variety of diameters and lengths. The diameter of the tube is very important to consider since this diameter will determine the thickness of the resulting concrete column. Tube length is less crucial, though. Read More…
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