详情

Nondestructive Test Methods for Improved Quality of Recycled Pavement

项目名称：	Nondestructive Test Methods for Improved Quality of Recycled Pavement
摘要：	MaineDOT is using recycling techniques such as foamed asphalt full depth reclamation and plant mix recycled asphalt pavement (PMRAP) as a primary highway improvement technique. Although we have learned much about the material and processes over the past few years there is still much more to learn in order to improve the quality and longevity of our highways. The structural capacity or "layer coefficient" for foamed asphalt and PMRAP is being determined based on limited laboratory work, FWD analysis and engineering judgment. The work to date concludes that layer coefficients and performance can vary greatly depending on presence of larger aggregates, in-situ moisture, material uniformity and layer thickness. Given the relatively high values being used to determine overall pavement thickness (1" recycled layer = ½" hot mix asphalt pavement) it is critical to improve the quality of these layers.
状态：	Completed
资金：	0.00
资助组织：	Maine Department of Transportation
执行机构：	Worcester Polytechnic Institute
开始时间：	20050701
实际结束时间：	20061230
主题领域：	Highways；Pavements；I30: Materials