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A study by Darling et al. (2012) [17] concluded that clay plaster has a positive impact on indoor air quality, especially in the presence of ozone, with or without the presence of carpet. The highest levels of air quality acceptance were observed when only clay plaster was present or when both clay plaster and carpet were present without ozone.
The panels can be sawn with standard tools, like a cutter knife, a jigsaw or a circular saw. The joints of the clay boards often have tongue and groove for easier processing. The joints must be reinforced with a jute fabric or glass fibre fabric and filled with a fine clay plaster mortar. The clay board is mounted in vertical or horizontal form.
An example of a typical NATCO hollow clay tile as advertised in their 1910 catalogue. "The visible points of superiority, as compared with similar tile of different makes, are the deep dovetail scoring for the better bonding of stucco or plaster, the absence of imperfections and the better general symmetry due to the more accurate machining by this company's unequaled equipment.
Floor plans use standard symbols to indicate features such as doors. This symbol shows the location of the door in a wall and which way the door opens. A floor plan is not a top view or bird's-eye view; it is a measured drawing to scale of the layout of a floor in a building.
"Cob stitch" repair on old traditional cob cottage in Devon, England Maison de Jeanne, Sévérac-le-Château.Timber and cob construction. Cob is an English term attested to around the year 1600 [3] for an ancient building material that has been used for building since prehistoric times.
An earthen floor. An earthen floor, also called an adobe floor, is a floor made of dirt, raw earth, or other unworked ground materials. It is usually constructed, in modern times, with a mixture of sand, finely chopped straw and clay, mixed to a thickened consistency and spread with a trowel on a sub-surface such as concrete.
the plaster is applied in one thick coat with a wooden float, and smoothed with the same. before the plaster sets, a flat, smooth, hard stone is used to compress the plaster, then a plastic trowel used for the final polish. it is mechanically polished using stones or abrasives harder than the plaster, providing a smooth, sometimes shiny, finish.
Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure.