Transportation Geotechnics

	Effects of Fouling on the Stress–Strain–Degradation Behaviour of Rail Ballast Buddhima Indraratna, Nayoma Tennakoon, Sanjay Nimbalkar and Cholachat Rujikiatkamjorn
	Soil Mass Density Test on Railway Ballasts with Using A 3D Digital Camera K. Hayano, S. Hoshi and J. J. Kumara
	Some Case Studies of Innovative Road- and Railroad Geotechnical Structures in Soft Soil Areas D. Alexiew and G. Thomson
	Mechanistic Based Quality Control During Highway Construction S. Wachiraporn, A. Sawangsuriya and W. Sramoon
	Improving Characteristics of Soil Cement in Pavement by Nano Silica A. R. Rezagholilou and H. Nikraz
	Effect of Lateral Confinement on California Bearing Ratio (CBR) Test A. Sawangsuriya, S. Wachiraporn, J. Sunitsakul and W. Sramoon