Murram is a natural aggregate commonly found in various regions, especially in tropical and subtropical areas. It is composed of a mixture of fine particles of disintegrated rock, silt, clay, and lateritic soil. Its natural binding and compaction properties make it a preferred material in construction, especially where stability and affordability are key considerations.

Murram is widely used as a sub-base material in road construction, providing a firm and stable foundation layerbeneath the base course or surface layer. Its ability to compact well ensures minimal settlement and improved load distribution, which enhances the overall performance and lifespan of the road. Beyond roads, murram is also utilized in embankments, backfilling, and rural pathways, thanks to its cost-effectiveness, local availability, and adequate strength for light to moderate traffic loads.