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Terra preta. Terra preta ( Portuguese pronunciation: [ˈtɛʁɐ ˈpɾetɐ], literally "black soil" in Portuguese) is a type of very dark, fertile anthropogenic soil ( anthrosol) found in the Amazon Basin. It is also known as "Amazonian dark earth" or "Indian black earth". In Portuguese its full name is terra preta do índio or terra preta de ...
Compressed earth block. A compressed earth block ( CEB ), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate. Forming compressed earth blocks requires dampening, mechanically pressing at high ...
The plaster can be applied in three coats, this is the Spanish process known as 'alisando'. The first layer is the scratch coat which provides adherence for the second layer the brown coat or levelling coat. The final layer is the color coat or finishing coat. This layer is usually clay with sand but without fiber.
A sticky, gummy, icky black clay soil that gives you “big feet” when it rains and that becomes adobe-hard when it dries. Believe it or not, that clay soil isn’t as bad as you might imagine.
Chernozem (from Russian: чернозём, romanized: chernozyom, IPA: [tɕɪrnɐˈzʲɵm]; "black ground"), [ 1][ 2] also called black soil, regur soil or black cotton soil, is a black-colored soil containing a high percentage of humus [ 3] (4% to 16%) and high percentages of phosphorus and ammonia compounds. [ 4] Chernozem is very fertile ...
Kaolinite ( / ˈkeɪ.ələˌnaɪt, - lɪ -/ KAY-ə-lə-nyte, -lih-; also called kaolin) [ 5][ 6][ 7] is a clay mineral, with the chemical composition: Al 2 Si 2 O 5 ( OH) 4. It is a layered silicate mineral, with one tetrahedral sheet of silica ( SiO4) linked through oxygen atoms to one octahedral sheet of alumina ( AlO6 ).
Wattle and daub in wooden frames. Wattle and daub is a composite building method used for making walls and buildings, in which a woven lattice of wooden strips called "wattle" is "daubed" with a sticky material usually made of some combination of wet soil, clay, sand, animal dung and straw. Wattle and daub has been used for at least 6,000 years ...
Barro negro pottery ("black clay") is a style of pottery from Oaxaca, Mexico, distinguished by its color, sheen and unique designs. Oaxaca is one of few Mexican states which is characterized by the continuance of its ancestral crafts, which are still used in everyday life. [1] Barro negro is one of several pottery traditions in the state, which ...