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Bricks made from adobe are usually made by pressing the mud mixture into an open timber frame. In North America, the brick is typically about 25 by 36 cm (10 by 14 in) in size. The mixture is molded into the frame, which is removed after initial setting. After drying for a few hours, the bricks are turned on edge to finish drying.
Adobe, the building-block, is made by mixing clay, sand, water and organic materials such as sticks, straw, and dung. The mixture is formed into blocks and left to dry. Meanwhile, a hole is dug where the new building is to be constructed and supporting poles are planted firmly in the ground to make a frame.
Adobes (mud bricks) were made from a combination of earth and water, with chaff, straw, or manure added to bind the mixture together. Occasionally pieces of bricks or shells were placed in the mix to improve the cohesiveness. [9] The soil used may have been clay, loam, or sandy or gravelly earth. The making of the bricks was a simple process ...
The mixture is then allowed to dry in the desired shape. Usually adobe is shaped into bricks that can be stacked to form walls. [3] Various claims are made about the optimal proportions of clay and sand (or larger aggregate). Some say that the best adobe soil contains 15% - 30% clay to bind the material together.
Mud, cob, adobe, clay, and many other names are historically used synonymously to mean a mixture of subsoil and water possibly with the addition of stones, gravel, straw, lime, and/or bitumen. This material was used a variety of ways to build walls, floors and even roofs.
The earth used for building ceramic houses is essentially a type of adobe with a higher clay content and fewer impurities. The earth and water are mixed until the substance has "the consistency of bread dough" [3] The clay/earth mixture is worked into forms, and the blocks dry over a period of one to two weeks.
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Adobe construction is common throughout much of Africa today. [31] Adobe bricks are traditionally made from sand and clay mixed with water to a plastic consistency, with straw or grass as a binder. [32] [d] The mud is prepared, placed in wooden forms, tamped and leveled, and then turned out of the mold to dry for several days. The bricks are ...