Behavior of Reinforced-Stone Dust Walls with Backfill at Varying Relative Densities

Abstract

The metal-aggregate industry is a dominating and unorganized industrial sector in India. The production of this aggregate is enormous to meet the ever-increasing demands of the construction industry. During crushing of stone aggregates in quarries, waste is generated, which is termed stone dust or quarry waste. The proper utilization or environment-friendly disposal of this stone dust is of concern. This paper presents the results of model walls with reinforced-stone dust as backfill, tested under strip loading with backfill compacted at varying relative densities of 17, 38, 59, and 73%. The model-wall facing was comprised of segmental blocks of concrete, and backfill was reinforced with bamboo-grid strips with a length-of-reinforcement-to-height-of-wall ratio (