详情

Developing Laboratory Methods and Specifications to Test Tack Coat Materials

项目名称：	Developing Laboratory Methods and Specifications to Test Tack Coat Materials
摘要：	The overall durability of a pavement structure is strongly tied to the retention of the desired amount of tack on the pavement layer surface during construction or rehabilitation as well as the bonding quality of the tack between pavement layers. The interlayer bond, in turn, is dependent on the quality of the tack coat material. Over the last few decades, there have been several developments in tack coat materials and their application. For example, the use of non-tracking materials and specialized application equipment have gained much attention in the pavement industry. Producers have developed various tack coat materials and often approached highway agencies for product approval, and agencies and producers have developed a range of laboratory tests to evaluate the characteristics of the tack coat materials and qualify their use. Research is needed to revisit recently developed methods and produce a specification that defines the test methods, parameters, and thresholds that are indicative of performance. The objective of this research is to produce a specification with related laboratory test methods for tack coat materials that allows prediction of their performance over a range of environments, pavement types, and construction methods. The research shall consider test methods for tack coat characteristics related to bonding, tracking, and durability. The proposed specification shall exclude tests of tack coat materials bonded to asphalt or other substrates.
状态：	Active
资金：	500000
资助组织：	National Cooperative Highway Research Program<==>American Association of State Highway and Transportation Officials (AASHTO)<==>Federal Highway Administration
项目负责人：	Harrigan, Edward T
执行机构：	University of Nevada, Reno
开始时间：	20200415
预计完成日期：	20221015
主题领域：	Construction；Highways；Materials；Pavements