Rubble/field stone masonry is composed of uncoursed rounded field stones or roughly-cut stones used for construction with or without mortar. There are two wall wythes and a core, usually filled with stone rubble and mud. Semi-dressed stone masonry is characterized by one wall wythe (usually exterior) built using shaped stones; usually only the exposed stone surface is shaped. In some cases, stone masonry can be reinforced, usually with wood elements (wood-reinforced).

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Rubble stone masonry, Italy (T. Schacher)

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Rubble stone masonry constructed using round river stones in lime or cement:lime mortar, usually 250 mm thick, West Sumatra, Indonesia (J. Bothara)

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Random rubble stone masonry, Cambridge, United Kingdom (S. Brzev)

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Stone masonry building in Algiers suffered damage in the 2003 Boumerdes, Algeria earthquake (M. Farsi)

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Rubble stone masonry with timber bands, NWFP, Pakistan (J. Bothara)

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Rubble stone masonry, Maharashtra, India (S. Brzev)

 

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Semi-dressed stone masonry, Maharashtra, India (S. Brzev)

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Semi-dressed stone masonry in mud mortar, Chile (S. Mihaldzic)

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Rubble stone masonry, Marrakesh, Morocco (C. Scawthorn)