Separation provides a media between the aggregate and the subsoil which absorbs the load in the form of tension and prevents change in the alignment of the aggregate. Geo-textile economically helps the separation concept of keeping two dissimilar materials apart to maximise the physical attributes of each of those materials. The object of separation by geo-textiles is to prevent a well-defined material or rich material from penetrating the sub-grade or the poor soil. If the separating media of geo-textiles is absent, the infiltration of the sub-grade decreases permeability of the aggregate to the point where it cannot adequately transport ...View More