Control Reflective Cracking of Overlay Asphalt Pavement

ISBN-13: 9783639862720 / Angielski / Miękka / 2020 / 192 str.

Talal Hussien

Opis

Reflection cracking is the phenomenon that the overlay, soon after its construction, shows an image of cracks and/or joints which are present in the old pavement surface. The causes of reflection cracking can be either environmental and/or load associated. Horizontal and vertical movements are induced in the overlay due to temperature variations and traffic loading. The main bad effect of the reflection cracking is the water infiltration through the cracks which softens the base material underneath. Flexural Beam Testing used to simulate the effect of the traffic loading. Reflection Cracking Index (RCI) is introduced in this study to find and compare the effect of variable factors such as thickness, type of filler, type of asphalt grade and effectiveness of different additives, on asphalt concrete beams. The higher RCI value the higher resistance to reflection cracking. The RCI value of asphalt concrete beams with limestone and (40-50) asphalt grade is 1.45 times more than that produced by cement as a filler and same asphalt grade.

O autorze

Hussien, Talal 1980 BS in Civil Eng. - University of Sulaimaniya. 1985 as a site engineer in directorate of roads and bridges of Anbar province. 1989 masters degree from Baghdad University / Faculty of Engineering.2006 PhD degree from Baghdad University/College of engineering.Since 2008 faculty staff in Anbar University-Engineering Faculty-Civil Department.