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Due to its poor tensile strength, stone cannot be used for long spans, so (unlike reinforced concrete), architects and builders must switch modes during design and construction of horizontal and vertical components. MP stone can be used in conjunction with concrete floors, manufactured timber panels, and post-tensioned stone flooring units. [14]
Reduced embedded carbon. Post-tensioned stone causes the emission of <1/3rd of carbon dioxide greenhouse gas relative to concrete. [11] [18] Lower cost. A study of a 30-storey office block found that using PT stone floor panels was cheaper than concrete floors. [12]
Travertine is a durable, low-porous stone that stays cool in direct sunlight, making it a popular choice for pool-sides, patios, walkways and outdoor entertainment areas. Travertine is salt tolerant and has a low sunlight reflection. Granite pavers have high integral strength and density making it easy to maintain and hard-wearing in outdoor use.
Stone bricks. Small stone ashlars that are cut by the quarry to brick sizing to allow their use in standardized brick-laying workflows. Cost is similar to clay composite bricks, but with greatly reduced carbon emissions. [16] [17] As stone does not change size like fired clay bricks, brick-sized stone ashlars do not require expansion joints.
The majority of tile has a polished finish, but other finishes such as honed are becoming more common. Almost all stone tile is mass-produced by automated tile lines to identical size, finish, and close tolerances. Exceptions include slate flooring tile and special orders: tile with odd sizes or shapes, unusual finishes, or inlay work.
Like most unreinforced masonry, the tensile strength is orders of magnitude lower than the compression strength; this limits the architectural options. Earth blocks tend to lose strength and dimensional stability when coming in contact with water for a long period of time. In some cases, it may lead to the complete disintegration of the block. [10]
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