Marmorino
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Marmorino Veneziano is a type of
plaster Plaster is a building material used for the protective or decorative coating of walls and ceilings and for Molding (decorative), moulding and casting decorative elements. In English, "plaster" usually means a material used for the interiors of ...
or
stucco Stucco or render is a construction material made of aggregates, a binder, and water. Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and a ...
. It is based on calcium oxide and used for interior and exterior wall decorations. Marmorino plaster can be finished via multiple techniques for a variety of matte, satin, and glossy final effects. It was used as far back as
Roman Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *''Epistle to the Romans'', shortened to ''Romans'', a letter ...
times, but was made popular once more during the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
500 years ago in
Venice Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400  ...
. Marmorino is made from crushed
marble Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or Dolomite (mineral), dolomite. Marble is typically not Foliation (geology), foliated (layered), although there are exceptions. In geology, the ...
and
lime Lime commonly refers to: * Lime (fruit), a green citrus fruit * Lime (material), inorganic materials containing calcium, usually calcium oxide or calcium hydroxide * Lime (color), a color between yellow and green Lime may also refer to: Botany ...
putty Putty is a material with high plasticity, similar in texture to clay or dough, typically used in domestic construction and repair as a sealant or filler. Although some types of putty (typically those using linseed oil) slowly polymerise and be ...
, which can be tinted to give a wide range of colours. This can then be applied to make many textures, from polished marble to natural stone effects. Widely used in
Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...
, its appeal has spread through
North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
especially, but now worldwide. Because of the hours of workmanship, the pricing places it in the high-end market. However, many examples can be seen in public buildings, bars, restaurants, etc. Its
waterproofing Waterproofing is the process of making an object or structure waterproof or water-resistant so that it remains relatively unaffected by water or resisting the ingress of water under specified conditions. Such items may be used in wet environme ...
and
antibacterial An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of ...
qualities as well as visual effects have also made it very desirable for luxury bathrooms, honeymoon bedrooms and other wet areas. Not confined to interior use, it can be seen on the exterior of many buildings to great effect.


History

Marmorino is well known as a classic
Venetian plaster Polished plaster is a term for the finish of some plasters and for the description of new and updated forms of traditional Italian plaster finishes. The term covers a whole range of decorative plaster finishes, from the very highly polished Venetian ...
; however, its origins are much older, dating to
ancient Roman In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 BC ...
times. We can see evidence of it today in the villas of
Pompeii Pompeii (, ) was an ancient city located in what is now the ''comune'' of Pompei near Naples in the Campania region of Italy. Pompeii, along with Herculaneum and many villas in the surrounding area (e.g. at Boscoreale, Stabiae), was buried ...
and in various ancient Roman structures. In addition, it was also written about in
Vitruvius Vitruvius (; c. 80–70 BC – after c. 15 BC) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work entitled ''De architectura''. He originated the idea that all buildings should have three attribute ...
's ''
De architectura (''On architecture'', published as ''Ten Books on Architecture'') is a treatise on architecture written by the Roman architect and military engineer Marcus Vitruvius Pollio and dedicated to his patron, the emperor Caesar Augustus, as a guide f ...
'', a 1st Century B.C. history of Rome. Marmorino was rediscovered centuries later after the discovery of Vitruvio's ancient treatise in the 15th century. This 'new' plaster conformed well to the aesthetic requirements dictated by the classical ideal that in the 15th century had recently become fashionable in the Venetian lagoon area. The first record of work being done with marmorino is a building contract with the nuns of Santa Chiara of Murano in 1473. In this document, it is written that before the marmorino could be applied, the wall had to be prepared with a mortar made of lime and "coccio pesto" (ground
terra cotta Terracotta, terra cotta, or terra-cotta (; ; ), in its material sense as an earthenware substrate, is a clay-based unglazed or glazed ceramic where the fired body is porous. In applied art, craft, construction, and architecture, terracotta ...
). This "coccio pesto" was then excavated from tailings of bricks or recycled from old roof tiles. At this point, to better understand the popularity of marmorino in Venetian life, two facts need to be considered. The first is that in a city that extends over water, the transport of sand for making plaster and the disposal of tailings was, and still is, a huge problem. So the use of marmorino was successful not only because the substrate was prepared using terra cotta scraps, but also the finish, marmorino, was made with leftover stone and marble, which were in great abundance at that time. These ground discards were mixed with lime to create marmorino. Besides, marmorino and substrates made of "coccio pesto" resisted the ambient dampness of the lagoon better than almost any other plaster. The first because it is extremely breathable by virtue of the kind of lime used (only lime which sets on exposure to air after losing excess water) and the second, because it contains terracotta which when added to lime makes the mixture
hydraulic Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counter ...
, that is, it's effective even in very damp conditions (because it contains silica and aluminium, bases of modern cement and
Hydraulic lime Hydraulic lime (HL) is a general term for calcium oxide, a variety of lime also called quicklime, that sets by hydration. This contrasts with calcium hydroxide, also called slaked lime or air lime that is used to make lime mortar, the other common ...
preparations). The second consideration is that an aesthetically pleasing result could be achieved in an era dominated by the return of a classical Greco-Roman style allowing less weight to be transmitted to the foundation when compared to the habit of covering facades with slabs of stone. Usually, marmorino was white to imitate
Istrian stone Istrian stone, ''pietra d'Istria'', the characteristic group of building stones in the architecture of Venice, Istria and Dalmatia, is a dense type of impermeable limestones that was quarried in Istria, nowadays Croatia; between Portorož and Pu ...
, which was most often used in Venetian construction, but was occasionally decorated with frescoes to imitate the marble, which Venetian merchants brought home from their voyages to the Orient. (In this period of the Republic of Venice, merchants felt obliged to return home bearing precious, exotic marble as a tribute to the beauty of their own city.) Marmorino maintained its prestige for centuries until the end of the 1800s when interest in it faded and it was considered only an economical solution to the use of marble. Only at the end of the 1970s, thanks in part to architect
Carlo Scarpa Carlo Scarpa (2 June 1906 – 28 November 1978) was an Italian architect, influenced by the materials, landscape and the history of Venetian culture, and by Japan. Scarpa translated his interests in history, regionalism, invention, and the tec ...
's use of marmorino, did this finishing technique return to the interest of the best modern architects. For about 10 years, industries were also interested in marmorino which was only produced by artisans. Today, however, ready-to-use marmorino can be found, often with glue added to allow it to be applied on non-traditional surfaces such as drywall or wood panelling.


See also

*
Scagliola Scagliola (from the Italian ''scaglia'', meaning "chips") is a type of fine plaster used in architecture and sculpture. The same term identifies the technique for producing columns, sculptures, and other architectural elements that resemble inlay ...
*
Stucco Stucco or render is a construction material made of aggregates, a binder, and water. Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and a ...


References

{{reflist
Giovanni Polistena, History of Marmorino, Stucco Italiano, 2012.


External links


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