详情

原文传递 VARIATION OF PAVEMENT DESIGN WITH ENVIRONMENTAL TEMPERATURE VARIATION

题名：	VARIATION OF PAVEMENT DESIGN WITH ENVIRONMENTAL TEMPERATURE VARIATION
其他题名：	H.A.-A.Wahhab,I.Al-Dubabe,I.M.Asi,M.F.Ali(1998),Performance based characteri-zation of Arab asphalt.Constr.Build.Mater.11,15-22.
正文语种：	英文
作者：	Swapan K. Bagui
关键词：	temperature；variation；pressure；design；environmental；different；resilient；software；average；flexible
摘要：	Indian Roads Congress (IRC): 37-2012 is the main guideline for design of flexible pavement. The guideline developed several pavement design charts ready for use based on Average Annual Pavement Temperature (AAPT) which varies from 20°C to 40° C. Environmental condition pertaining to the monthly variation of temperatures have not been considered in the pavement design. This paper presents pavement design considering variation of resilient / elastic modulus value at different time periods throughout the year (month wise) using IIT Pave software and compare conventional pavement design as proposed in IRC: 37-2012. A different temperature model has been used to determine pavement temperature month wise. Different elastic moduli (E) values of Bituminous Concrete (BC) and Dense Bituminous Macadam (DBM) have been considered based on air temperatures and design life based on monthly pavement temperature is calculated for each month and average value is adopted for final pavement design life. It has been found that conventional pavement design is underestimated when pavement design is conducted using monthly variation of pavement temperature at lower tire pressure(for e.g. 0.56 Mpa and below) and is overestimated at higher tire pressure. Design life with variation of temperature is found 3 times approximately thrice of that obtained from conventional method of pavement design. It is also found that rut and fatigue life varies with tire pressure. Both lives decrease with increasing tire pressure and maximum tire pressure is determined as750 KPa (0.75 MPa).
出版年：	2017
论文唯一标识：	I-75Y2017V45N01006
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：	45
期：	01
页码：	29-36