详情

原文传递 ANALYSIS OF FLEXIBLE PAVEMENTS FOR VISCOELASTIC RESPONSE

题名：	ANALYSIS OF FLEXIBLE PAVEMENTS FOR VISCOELASTIC RESPONSE
其他题名：	1.ASTM.(2003),"Standard Test Method for Dynamic Modulus of Asphalt Mixes",ASTM D3497-79.
正文语种：	英文
作者：	Girish Kumar
关键词：	temperature；literature；layer；application；stic；strain；flexible；variation；last；deform
摘要：	The theory of viscoelasticity and its application in the modelling of flexible pavement is well documented in literature. This paper demonstrates the use of Burger model, a constitutive rheological model to investigate the Linear Visco-Elastic (LVE) behaviour of bituminous layer. The effect of temperature on viscoelastic bituminous layer is also studied. A simple pavement section as per the guidelines of IRC:37-2012, has been chosen to show the creep deformation behaviour of bituminous layer. The pavement responses obtained from the computer program, KENLAYER shows three stages in strain; an instantaneous elastic strain, a delayed elastic strain and viscous creep strain for various temperatures from 20° to 40°C. A comparison of the effect of temperature variation on the horizontal tensile strain at the bottom of the bituminous layer is done by considering the bituminous layer as elastic and viscoelastic, separately. Results show that the viscoelastic characterization of this layer yielded nigh rate of increase in tensile strain with increase in temperature, when compared to elastic characterization. There is almost 60％ decrease in fatigue life with the increase in temperature from 20° to 40°C.
出版年：	2015
论文唯一标识：	I-75Y2015V43N08007
英文栏目名称：	Technical Papers
期刊名称：	Indian Highways
拼音刊名(出版物代码)：	I-75
卷：	43
期：	08
页码：	41-50