Sustainable Mass Housing Through Harnessing Laterite Soil in Bokkos for Compressed Earth Block Production

Nigeria's housing deficit requires cost effective, low-carbon alternatives to conventional masonry. This study evaluates lateritic soils from Bokkos LGA for compressed earth block (CEB) production and examines cement- and lime-stabilised block durability. Laboratory tests revealed suitable properties average sand (65.15%) and clay (26.87%) close to CRATerre recommendations, with a plasticity index of 7.02% corroborating established criteria. A novel MATLAB-based Suitability Index classified 70% of samples as highly suitable. Stabilization trials showed 10% cement reduced water absorption to 150 mm (halving 5% cement's value) while delivering excellent abrasion resistance (0.13 mm). Although 5% lime performed well in abrasion, its poor water resistance precludes long term use. Bokkos laterites thus offer a robust material base, with 10% cement stabilization providing an optimal path for sustainable mass housing.