Subgrade stabilization, design and analysis of flexible pavement by mechanistic empirical approach

Abstract

Soil stabilization is one of most important process in construction of road pavement and foundation because it improves the engineering properties of soil such as strength, volume stability and durability. The disposal of solid waste now –a- days is of major concern. solid waste like fly ash is generated in tonnes every year. Usin large amount of fly ash in pavement construction will bring economy in pavement design. Using fly ash makes it more environment friendly and reduces the disposal actions and it creates an options of recycling. An attempt is made to use fly ash to stabilized the soil and design the thickness of pavement by MEPGD. The thickness of flexible pavement on virgin soil is tested, stabilized and designed. Design involves computing the stress and strain by using IIT pave software, In order to achieve the strength which are the major problem in weak soil like clay and try to bring economy in future road constructions.