Study on Alternative Materials Used for Interlocking Compressed Stabilized Earth Blocks (ICSEB)

Abstract— The popularity and dependency of the majority of population on masonry alone demands further study on this field. We proposed a study on the interlocking blocks which are being more popular these days, with different locally available material like fly ash, limestone dust, saw dust ash etc. for stabilization and higher compressive strength. A total of 40 samples of ICSEB (Interlocking Compressed Stabilized Earth Block) were produced for the research purpose consisting with varied proportions of different materials. The samples were batched, prepared and compacted as per the proportions decided from thorough study, literature review and field experience. The best sample obtained on the basis of cost for 1 cubic meter wall as well as sample crossing the nominal compressive strength was found to be the block with 15% saw dust ash with amount 22% less than the red clay brick and the cheapest brick per unit among all was found to be sample containing 30% sawdust costing NPR 24.6 but it had lesser strength than nominal compressive strength as required by Nepal Building Code (NBC-202). The unit block prepared with lime and cement at equal proportion of 7.5% showed highest compressive strength among all the samples.
Keywords— ICSEB, Earth Block, Fly Ash, Cement Stabilization, Lime, Saw dust stabilization

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