In the hope of finding a cost-efficient, earthquake-proof housing structure in the earthquake-prone Yunnan province, a research team from Chinese University discovered that clay debris from homes that collapsed in previous earthquakes could be used to rebuild houses. The salvaged materials allowed the team to save on the cost of importing construction materials, cutting total costs by up to 40% when using rammed earth vs. brick and concrete. Not only was the rammed-earth structure found to be a cost savings, it also passed a 9-magnitude earthquake simulation test by the Kunming University of Science and Technology.
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