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American Southwest Architectural Trend - A Study in Terracotta, Stucco, and Glass Block

Architectural trends in the Southwestern United States combine modern industrial influences with Mexican/Spanish traditional features.

Designer/Artist/Architect: Joe Marts

 

 

Terracotta, Terra cotta or Terra-cotta (Italian: "baked earth",[1] from the Latin terra cocta) is a clay-based unglazed ceramic,[2] although the term can also be applied to glazed ceramics where the fired body is porous and red in color.[3][4][5][6] Its uses include vessels, water and waste water pipes and surface embellishment in building construction, along with sculpture such as the Terracotta Army and Greek terracotta figurines. The term is also used to refer to items made out of this material and to its natural, brownish orange color, which varies considerably. In archaeology and art history, "terracotta" is often used of objects not made on a potter's wheel, such as figurines, where objects made on the wheel from the same material, possibly even by the same person, are called pottery; the choice of term depending on the type of object rather than the material[citation needed].

 

Production and properties

 

An appropriate refined clay is partially dried and cast, molded, or hand worked into the desired shape. After further thorough drying it is placed in a kiln, or atop combustible material in a pit, and then fired. After pit firing the hot ware is covered with sand to cool, and after kiln firing the kiln is slowly cooled. When unglazed, the material will not be waterproof, but it is suitable for in-ground use to carry pressurized water (an archaic use), for garden ware or building decoration in tropical environments, and for oil containers, oil lamps, or ovens. Most other uses such as for table ware, sanitary piping, or building decoration in freezing environments require that the material be glazed. Terracotta, if uncracked, will ring if lightly struck, but not as brightly as will ware fired at higher temperature, which is called stoneware. The fired material is weak compared to stoneware.

Some types of terracotta are created from clay that includes recycled terracotta ("grog").

The unglazed color after firing can vary widely, but most common clays contain enough iron to cause an orange, orangish red, or brownish orange color, with this range including various colors described as "terracotta". Other colors include yellow, gray, and pink.

 

History

 

Terracotta has been used throughout history for sculpture and pottery, as well as bricks and roof shingles. In ancient times, the first clay sculptures were dried (baked) in the sun after being formed. Later, they were placed in the ashes of open hearths to harden, and finally kilns were used, similar to those used for pottery today. However only after firing to high temperature would it be classed as a ceramic material.

 

IMG_1202 - Version 2

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Uploaded on May 3, 2011
Taken on May 2, 2011