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Rubberwood is a light-colored medium-density tropical hardwood obtained from the Pará rubber tree (Hevea brasiliensis), usually from trees grown in rubber plantations. [1] Rubberwood is commonly advertised as an " environmentally friendly " wood, as it makes use of plantation trees that have already served a useful function.
A playground surface is the material that lies under and around swings, slides, monkey bars and other playground equipment. The surfaces are usually made of wood or rubber and designed specifically for aesthetics, child safety, and/or ADA wheelchair accessibility.
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving ( see below ).
A composite steel deck combines the tensile strength of steel with the compressive strength of concrete to improve design efficiency and reduce the material necessary to cover a given area. Additionally, composite steel decks supported by composite steel joists can span greater distances between supporting elements and have reduced live load ...
Three major Estonian producers of thermally modified wood emerged in the late 1990s: Brenstol OU, Tre-Timber OU and Ha-Serv. All 3 companies focused on providing sauna materials for the Finnish market and interior flooring—Brenstol specializing in hardwoods and Tre-Timber specializing in softwoods.
Floors might consist of the original ground upon which the hut was erected, but various mixtures of sand, clay, cow-dung, and similar materials were laid to make a firmer, more level, or harder-wearing indoor surface. Termite mounds, crushed and watered, had many of the properties of poured concrete when used as flooring material. [39]