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This can yield time savings of up to 40% compared with traditional solid slabs. [1] However, this is heavily dependent on the particular system, and systems relying on onsite placement of void formers requires much more labor than solid slabs. [2] Compared to one-way hollow-core slabs, biaxial slabs are more resistant to seismic disturbance.
Hollow-core slabs and wall elements without prestressed steel wire can be formed by extruders. The size of these elements will typically range in width from 600 to 2400 mm, in thickness from 150 to 500 mm, and can be delivered in lengths of up to 24 m. [1] The voids of the hollow core can be used as conduit for installations.
Lock block – A solid block of wood mounted within a hollow-core flush door near the bolt to provide a solid and stable location for mounting the door's hardware. Stave-core – Consists of wooden slats stacked upon one another in a manner similar to a board & batten door (though the slats are usually thinner) or the wooden-block hollow-core ...
Hollow core doors are much lighter than solid wood doors, cheaper and are easier to install. However, sound travels more freely through them, which can be a problem if the house is noisy or the occupants desire a lot of privacy. Also, hollow core doors should not be used as doors to the outside because they can more easily be broken open by ...
The mechanical properties of honeycombs depend on its cell geometry, the properties of the material from which the honeycomb is constructed (often referred to as the solid), which include the Young's modulus, yield stress, and fracture stress of the material, and the relative density of the honeycomb (the density of the honeycomb normalized by ...
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An added benefit is that hollow core can be formed if the gas is introduced via holes in the core surface which cause only the surface of the core to harden; the remaining sand is then just dumped out to be used again. [4] For example, a cold-box sand casting core binder is sodium silicate which hardens on exposure to carbon dioxide. [5]
Bolection: Raised moulding projecting proud of a face frame at the intersection of the different levels between the frame and an inset panel on a door or wood panel. It will sometimes have a rabbet on its underside the depth of the lower level so it can lay flat over both. It can leave an inset panel free to expand or contract with temperature ...