INDIA: At Ellora Caves, a complex of more than 30 rock-carved temples in Maharashtra, among countless surviving statues and reliefs, are the remains of frescoes on some walls and ceilings. They’ve survived more than 1,500 years in part, the authors of a new study believe, because hemp—cannabis, known as bhang in India—was mixed with the plaster. The composite material, called hempcrete, can provide strength, thermal insulation, fire resistance, pest resistance, and sound absorption.
Via: Archaeological Headlines - Archaeology Magazine
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