mud-brick

A mudbrick is a brick, made of a mixture of loam, mud, sand and water mixed with a binding material such as rice husks or straw; also known by its Spanish name adobe. Brickmakers use a stiff mixture and let them dry in the sun for 90 days. In warm regions with very little timber available to fuel a kiln, bricks were generally sun dried. In some cases brickmakers extended the life of mud bricks by putting fired bricks on top or covering them with stucco.