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Concept
Mudbrick
Summary
A mudbrick or mud-brick is an air-dried brick, made of a mixture of mud (containing loam, clay, sand and water) mixed with a binding material such as rice husks or straw. Mudbricks are known from 9000 BCE.
From around 5000–4000 BCE, mudbricks evolved into fired bricks to increase strength and durability. Nevertheless, in some warm regions with very little timber available to fuel a kiln, mudbricks continued to be in use. Until today, mudbricks are the standard of vernacular architecture in some warmer regions mainly in parts of Africa and western Asia. In the 20th century, the compressed earth block was developed using high pressure as a cheap and eco-friendly alternative to obtain non-fired bricks with more strength than the simpler air-dried mudbricks.
The history of mudbrick production and construction in the southern Levant may be dated as far back to the Pre-Pottery Neolithic A (e.g., PPNA Jericho). These sun dried mudbricks, also known as adobe or just mudbrick, were made from a mixture of sand, clay, water and frequently tempered (e.g. chopped straw and chaff branches), and were the most common method/material for constructing earthen buildings throughout the ancient Near East for millennia. Unfired mud-brick is still made throughout the world today, using both modern and traditional methods.
The 9000 BCE dwellings of Jericho were constructed from mudbricks, affixed with mud, as would those at numerous sites across the Levant over the following millennia. Well-preserved mudbricks from a site at Tel Tsaf, in the Jordan Valley, have been dated to 5200 BCE, though there is no evidence that either site was the first to use the technology. Evidence suggests that the mudbrick composition at Tel Tsaf was stable for at least 500 years, throughout the middle Chalcolithic period.
The South Asian inhabitants of Mehrgarh constructed and lived in mud-brick houses between 7000–3300 BCE. Mud bricks were used at more than 15 reported sites attributed to the 3rd millennium BCE in the ancient Indus Valley civilization.
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