Experimental Study On The Swelling Behaviour In Expansive Soils Using Grouting Technique

Abstract

In construction expansive soils plays a major Problem. Large number of research studies are carried out by using waste material in construction purpose .In this project we using natural waste material which is economical and eco-friendly. Soil stabilization is done by using EGG SHELL POWDER and FLY ASH by using Grouted columns and Mixing. An attempt is made to reduce the swelling behaviour in expansive soils using Grouted columns and Mixing. Soil containing the clay mineral for most MONTMORILLONITE shows the expansive property. GEOTECHNICAL tests like Free swell test, Moisture content, Atterberg limits, Sieve analysis, Consolidation, Unconfined compressive test, Swell pressure test are conducted to know soil properties. ESP (EGG SHELL POWDER) (5%) and FLY ASH (20%,25%,30%) of slurry mix concentration is for grouted columns. Different concentrations of grout mixers are used to reduce the heave of expansive soil. Oedometer tests were performed to get swell pressure of different grouted specimens. Index properties, free swell, particle size distribution and compaction tests have also been conducted to know the soil properties. The results clearly indicate that ESP, Fly Ash, grouted columns in expansive soils can reduce the expansive characters of such soils.