nian tu chan mao fa hui jiangclay-and-hair mortarnien t'u ch'an mao fa hui chiangmortero de cal y peloteclay-and-hair mortar黏土摻毛髮灰漿nián tǔ chān máo fǎ huī jiāng
A plastic material comprised of clay and water with animal hair added to increase the mechanical strength of the mortar mixture when dry. Commonly used as a construction material in colonial America.