Cob, cobb, or clom is a natural building material made from subsoil, water, fibrous organic material, and sometimes lime. The contents of subsoil vary, and if it does not contain the right mixture, it
Building a wall out of cob
"Cob stitch" repair on old traditional cob cottage in Devon, England
Maison de Jeanne, Sévérac-le-Château. Timber and cob construction
An example of a modern cob building in the Pacific Northwest style. The exterior cob wall is limewashed for an attractive, uniform appearance.
A mudbrick, also called an unfired brick, is an air-dried brick composed of a mixture of mud with a binding material, such as rice husks or straw. Mudbricks are known to have been used since 9000 BCE.
Cob (material)
…ARGE-SH, a German Research-Institute for Cob-buildings Chirpici – Earth blocks for construction (a variant of cob used in southern Romania) Composite material – Material made from a combination of two or more unlike…
New, unlaid mudbricks in the Jordan Valley, West Bank Palestine, 2011
Mudbrick was used for the construction of Elamite ziggurats—some of the world's largest and oldest constructions. Choqa Zanbil, a 13th-century BCE ziggurat in Iran, is similarly constructed from clay bricks combined with burnt bricks.
Mud-brick stamped with seal impression of raised relief of the Treasury of the Vizier. From Lahun, Fayum, Egypt. 12th Dynasty. The Petrie Museum of Egyptian Archaeology, London
Traditional brickyard on Tuti Island in Sudan, 2016