Dry ashlar masonry laid in parallel courses on an Inca wall at Machu Picchu
Ashlar masonry north gable of the Town Hall, Banbury, Oxfordshire
Ashlar polygonal masonry in Cuzco, Peru
Quarry-faced red Longmeadow sandstone in random ashlar was specified by architect Henry Hobson Richardson for the North Congregational Church (Springfield, Massachusetts, 1871). Although each block was cut with great precision on adjacent faces, the external face was left rough as when removed from the quarry. The blocks were laid randomly without continuous courses or vertical and horizontal joints.
3 Piece Ashlar Pattern
Ashlar (/ˈæʃlər/) is finely dressed (cut, worked) stone, either an individual stone that was worked until squared or the structure built from it. Ashlar is the finest stone masonry unit, generally rectangular cuboid, mentioned by Vitruvius as opus isodomum, or less frequently trapezoidal. Precisely cut 'on all faces adjacent to those of other stones', ashlar is capable of very thin joints between blocks, and the visible face of the stone may be quarry-faced or feature a variety of treatments: tooled, smoothly polished or rendered with another material for decorative effect.[1][2]
One such decorative treatment consists of small grooves achieved by the application of a metal comb. Generally used only on softer stone ashlar, this decoration is known as 'mason's drag'.[3]
Ashlar is in contrast to rubble masonry, which employs irregularly shaped stones, sometimes minimally worked or selected for similar size, or both. Ashlar is related but distinct from other stone masonry that is finely dressed but not quadrilateral, such as curvilinear and polygonal masonry.[2][4]
Ashlar may be coursed, which involves lengthy horizontal layers of stone blocks laid in parallel, and therefore with continuous horizontal joints. Ashlar may also be random, which involves stone blocks laid with deliberately discontinuous courses and therefore discontinuous joints both vertically and horizontally. In either case, it generally uses a joining material such as mortar to bind the blocks together, although dry ashlar construction, metal ties, and other methods of assembly have been used. The dry ashlar of Inca architecture in Cusco and Machu Picchu is particularly fine and famous.
Etymology[edit]
How to unlock landline phone. The word is attested in Middle English and derives from the Old Frenchaisselier, from the Latinaxilla, a diminutive of axis, meaning 'plank'.[5] 'Clene hewen ashler' often occurs in medieval documents; this no doubt means tooled or finely worked, in contradistinction to rough-axed faces.[6]
Stone Cladding Wall Cladding Stone Feature Wall Feature Walls Ashlar Pattern Brick Face Masonry Work Thin Stone Veneer Outdoor Stone Clancy Random Ashlar Wall Cladding & Veneers by Eco Outdoor Clancy is a warm sandstone product in the Random Ashlar stone cladding range. Lil cease the wonderful world of cease a leo zip.
Use[edit]
CAD Drawings Included in this section are the available downloads to help the Design Professional in the application of Centurion Stone on your next project. If you are need of additional information, please contact our Technical Department at (800) 786-6352. MATCRETE Ashlar Patterns are made up of random sized pieces of slate and stone and are suitable for both commercial and residential applications. Join the conversation. You can post now and register later. If you have an account, sign in now to post with your account. Note: Your post will require moderator approval before it will be visible. Broken ashlar, or random range ashlar, is a form of stone masonry that deploys tooled ashlar blocks in horizontal courses consisting of varied bricks within each same sized course. Each course may be broken into smaller intervals of two or more courses as necessary for a more organic pattern.
Ashlar blocks have been used in the construction of many buildings as an alternative to brick or other materials.
In classical architecture, ashlar wall surfaces were often contrasted with rustication.
The term is frequently used to describe the dressed stone work of prehistoric Greece and Crete, although the dressed blocks are usually much larger than modern ashlar. For example, the tholos tombs of Bronze AgeMycenae use ashlar masonry in the construction of the so-called 'beehive' dome. This dome consists of finely cut ashlar blocks that decrease in size and terminate in a central capstone.[7] These domes are not true domes, but are constructed using the corbel arch.
Ashlar masonry was also heavily used in the construction of palace facades on Crete, including Knossos and Phaistos. These constructions date to the MM III-LM Ib period, c. 1700–1450 BC.
In modern European masonry the blocks are generally about 35 centimetres (14 in) in height. When shorter than 30 centimetres (12 in), they are usually called small ashlar. W_kevlar.mdl download.
As metaphor[edit]
In some Masonic groupings, which such societies term jurisdictions, ashlars are used as a symbolic metaphor for how one's personal development relates to the tenets of their lodge. As described in the explanation of the First Degree Tracing Board, in Emulation and other Masonic rituals the rough ashlar is a stone as taken directly from the quarry, and allegorically represents the Freemason prior to his initiation; a smooth ashlar (or 'perfect ashlar') is a stone that has been smoothed and dressed by the experienced stonemason, and allegorically represents the Freemason who, through education and diligence, has learned the lessons of Freemasonry and who lives an upstanding life.[8]
See also[edit]
References[edit]
- ^Ching, Francis D. K.; Jarzombek, Mark M.; Prakash, Vikramaditya (2007). A Global History of Architecture. Hoboken, New Jersey: John Wiley & Sons. p. 759. ISBN978-0-471-26892-5.
- ^ abSharon, Ilan (August 1987). 'Phoenician and Greek Ashlar Construction Techniques at Tel Dor, Israel'. Bulletin of the American Schools of Oriental Research. Boston: The American Schools of Oriental Research (267): 32–33.
- ^'The Conservation Glossary'. University of Dundee. Archived from the original on 2010-05-19. Retrieved 2009-05-04.
- ^Wright, George R. H. (2000). Ancient Building Technology, Vol 1: Historical Background. Technology and Change in History. Leiden, The Netherlands: E. J. Brill. p. 100. ISBN978-90-04-09969-2. OCLC490715142.
- ^'Definition of ashlar'. Oxford Dictionaries.
- ^ One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). 'Ashlar'. Encyclopædia Britannica. 2 (11th ed.). Cambridge University Press. p. 733. This also attests the alternative spellings ashler and ashelere.
- ^Preziosi, D.; Hitchcock, L. A. (1999). Aegean Art and Architecture. Oxford History of Art. pp. 175–6. ISBN0-19-284208-0.
- ^'Rough and Perfect Ashlar'. Masonic Lodge of Education. Retrieved 15 March 2015.
External links[edit]
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Random Ashlar Stone Pattern
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