Engineering Properties of Clayey Soil Stabilized with Waste Granite Dust

Abstract

The properties of soil play a major effect on the design of road pavements. Thus, using waste
materials to develop the characteristics of weak soil is being progressively necessary for
industrial constructions. In past years, several pieces of research have been done to show the
significance of these waste materials on the strength of the soil. This research aims to focus on
the impact of granite powder on the behavior of the soil subjected to loading. Therefore, soils
blended with several amounts of granite powder i.e. 4%, 8%, 12%, 16%, and 20% of the total
weight were examined. The CBR, compaction and direct shear tests were executed to evaluate
the performance of the untreated and treated soils. The findings proved that adding granite dust
increased noticeably the shear strength, CBR and dry density of the soils. It was found that an
addition of 8% granite dust to the natural soil yields the most appropriate results among other
contents of granite dust. Hence, it is concluded that the granite dust has good potential to be
used as an additive for improving the engineering properties of clayey soil.