![]() ![]() The architect will design the building to specify each ashlar's dimensions. Design for manufacturing and assembly.Unlike traditional stonemasonry, cutting (saws) and assembly (cranes) is primarily done with machines. Precise interfaces also reduce the amount of mortar required. The precision amounts to a form of prefabrication, such that the masons do not have to make adjustments onsite, and construction is an assembly process. ![]() Precutting can be done at the quarry, or at a masonry workshop by sawyer and banker masons. Using massive dimensions has three critical benefits: (1) minimizing cuts, which lowers cost and shortens production time, (2) increases the thermal mass of walls for temperature regulation in the building, and (3) makes use of crane construction, thereby lowering manual labor, shortening assembly time, reducing mortar, labor, and cost. This distinguishes MP stone from cosmetic precut stone, which is used for cladding decoration. These differentiate MP stone from both traditional stonemasonry and modern non-load-bearing and/or non-DFMA stone methods. MP stone is defined by five design attributes. The re-adoption of MP stone inspired architecture critic Rowan Moore to note that "It’s conceivable, indeed, that the era of concrete will prove only an interlude in the far longer history of stone." Design features of massive-precut stone Since 1948, MP stone buildings have been constructed in France, Algeria, Iran, Switzerland, Palestine, United Kingdom, Spain, and India. Massive-precut stone has a connection to mass timber as they are both emerging methods of low-carbon construction. MP stone has a close affiliation with post-tensioned stone as emerging techniques of modern load-bearing stonemasonry. Massive-precut stone is also known as "prefabricated stone", "pre-sized stone", " megalithic" construction, or simply "massive stone", however these terms have namespace conflicts with synthetic stone, cosmetic (non-loadbearing) precut stone, and/or older methods of massive handworked stonemasonry. ![]() It became possible through innovations by Pouillon and Paul Marcerou, a masonry engineer at a quarry in Fontvieille, to adapt high-precision saws from the timber industry to quarrying and stone sawing. Massive-precut stone construction was originally developed by Fernand Pouillon in postwar period who referred to the method as "pierre de taille" or "pré-taille" stone. The use of massive stone blocks has several benefits, listed below. The blocks may be numbered so that the masons can follow the plan procedurally. Precut stone is a DFMA construction method that uses large machine-cut dimension stone blocks with precisely defined dimensions to rapidly assemble buildings in which stone is used as a major or the sole load-bearing material.Ī key technique of massive-precut stone ("MP stone") is to specify precut stone to precise dimensions that match the architect's plan for rapid construction, typically using a crane. Massive-precut stone is a modern stonemasonry method of building with load-bearing stone. Apartment buildings built from massive-precut stone. ![]() Part of a residential complex constructed using the massive precut stone method. 15 Clerkenwell Close in London uses a massive-precut stone exoskeleton. Type of stonemasonry used in construction The first load-bearing stone skyscraper, 2 Rue Saint-Laurent, a 16-storey apartment building in Marseille, built from massive-precut stone. ![]()
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