详情

原文传递 Non-Destructive Estimation of Pavement Thickness, Structural Number and Subgrade Resilience along INDOT Highways.

题名：	Non-Destructive Estimation of Pavement Thickness, Structural Number and Subgrade Resilience along INDOT Highways.
作者：	noureldin, s. zhu, k. harris, d. li, s.
关键词：	rehabilitation strategies, pavement performance, fwd test, ground penetrating radar, deflection testing, pavement thickness
摘要：	Nondestructive testing has become an integral part for evaluation and rehabilitation strategies of pavements in recent years. Pavement evaluation employing the Falling Weight Deflectometer (FWD) and the Ground Penetrating Radar (GPR) can provide valuable information about pavement performance characteristics and be a very useful tool for project prioritization purposes and estimation of construction budget at the network level. FWD deflection testing is an accurate tool for determining pavement structural capacity and estimating the required thickness of overlays and hence is an accurate tool for planning for or estimating required current and future construction budgets. GPR is the only tool that a highway agency may use to develop an inventory of pavement layers thicknesses in the most efficient manner possible. By estimating pavement layer thicknesses and stiffness properties more reliable projections of network rehabilitation strategies and needs can be established, thus resulting in cost effective use of available funds. Traditional obstacles for the use of FWD and GPR in pavement evaluation at the network level used to be expenses involved in data collection, limited resources and lack of simplified analysis procedures. This report presents Indiana experience in pavement evaluation with the FWD and GPR at the network level. A network level FWD and GPR testing program is implemented as a part of a study to overcome those traditional obstacles. / NOTE: Final rept. / Supplementary Notes: Sponsored by Indiana Dept. of Transportation, Indianapolis. and Federal Highway Administration, Indianapolis, IN. Indiana Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0814；110p
报告类型：	科技报告