Develop a Building Material From Locally Sourced Nigerian Raw Materials That Reduces Construction Cost by 30%

Construction costs in Nigeria are among the highest in sub-Saharan Africa relative to income. A significant driver is dependence on imported or import-priced materials — cement, roofing sheets, glass, and structural steel. Nigeria has abundant raw materials — laterite, bamboo, agricultural waste, volcanic rock — that are almost entirely unused in formal construction. Your challenge is to develop or design a building material made primarily from Nigerian raw materials that reduces the cost of a specific construction element — walls, roofing, flooring, or insulation — by at least 30% compared to the current standard. It must meet basic structural or functional requirements for residential construction. Submit: material specification, raw material source, production process, cost comparison to current standard, structural or functional test results (or methodology), and a plan for small-scale production. Judging criteria: 40% cost reduction evidence, 30% technical feasibility, 20% material performance, 10% scalability.