Mechanical Strength of Local Soil Enhanced by Hybrid Saw Dust Ash

The development of any nation depends upon the development of good infrastructure. In India, due rapid infrastructural development needs good roads, generally, road subgrade and subbase layers are constructed using locally available soil (expansive soil), it may not have desired strength, so its need to improvement to use as construction material, mostly through chemical treatment (as cost effective and sustainable method). This paper presents the strength properties of local soil enhanced by mean of alkaline activated (hybrid) saw dust ash (SDA). The experimental investigation through compaction and unconfined compression test was carried out to understand the feasibility of effect of alkaline activated saw dust ash on local soil. The experimental result shows that replacement of local soil with hybrid SDA content up 15% improves the strength properties of the soil mass nearly about 900 kPa and indicates that hybrid SDA is a good sustainable soil stabilizer. This may reduce the natural resource material and increases consume of industrial waste materials.