چکیده مقاله
Soils typically exhibit a weak behavior in terms of both shear and tensile strength Construction and transportation subgrade necessitate the improvement of soil strength properties and in order to achieve certain geotechnical requirements in roadbeds, stabilization and improvementof the soil's mechanical properties may be necessary Many soil stabilizing methods areexpensive or cause environmental contamination Combining soil with sustainable and ecologically friendly materials is one of the most desirable approaches to improve the mechanical behavior of soil In this research, the mechanical properties of clayey soil stabilized with nanoclay have been examined Compaction, unconfined compressive strength UCS , California bearing ratio CBR test, and scanning electron microscope SEM have been conducted in this study Three dosage of nano clay of 0 4%, 0 8%, and 1% have been utilized for this purpose The results obtained indicate that the compressive strength of soil stabilized with nanoclay is greatly enhanced Enhancing the amount of nanoclay decreases the failure strain and raises the soil's elastic modulus, while increasing its bearing capacity It was observed that feature of filling and the formation of viscous gel, the interaction between soil particles increases when they are coupled with nanoclay Adding nanoclay to the soil on the surfaces of particles also enhances roughness, friction, and interlocking between particles and can be effective in improving the subgrade strength
کلیدواژهها
نویسندگان
Mahyar Arabani
Professor, Department of Civil Engineering, University of Guilan, Rasht, Iran,Department of Civil Engineering, University of Guilan, Rasht, Iran
Mohammad Mahdi Shalchian
Ph D Student of Geotechnical Engineering, University of Guilan, Rasht, Iran
شیوه ارجاع
Arabani, Mahyar and Shalchian, Mohammad Mahdi,1402,Experimental Investigation of Using Nano-Clay to Stabilize Clayey Subgrade,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران