MODIFICATION OF CLAYEY SOIL USING FLY ASH

Abstract

Soil modification refers to the process of enhancin g physical, chemical and mechanical properties of s oil to maintain its stability. In this research, an attempt has been made to improve the engineering properties of locally available cla yey soil by making a composite mix with waste river sand and fly ash in appropriat e proportions. A series of proctor compaction tests , unconfined compressive strength (UCS) tests and falling head permeability tests were carried out. It was revealed that both s trength and permeability characteristics of clayey soil improve on addition of local sand and fly ash. Thus, a suitable mix pro portion of clayey soil-sand-fly ash for various geotechnical applications like construc tion of embankments, low cost rural roads etc. can be obtained. The main objective of this research work is to obtain an improved cons truction material by making the best use of availab le clayey soil & sand and to make the effective utilization of fly ash.