详情

LTPP Data Analysis: Significance of As-Constructed Asphalt Pavement Air Voids to Pavement Performance

项目名称：	LTPP Data Analysis: Significance of As-Constructed Asphalt Pavement Air Voids to Pavement Performance
摘要：	Research is needed to determine the effect of in-place air voids (i.e., density expressed as a percent of maximum theoretical density) on the performance of asphalt pavements through an analysis of field data from the Long-Term Pavement Performance (LTPP) program and other sources. The best evidence of the impact of in-place air voids on pavement performance comes from laboratory studies. The challenge will be to isolate the effect of in-place air voids from the other factors that can affect pavement performance. Interest in this subject is due to the perceived significance of in-place air voids on pavement performance, and to the fact that any cost associated with increased density during construction is much less than that of the maintenance, preservation, and rehabilitation needed to address reduced pavement life. The objective of this research was to determine the effect of in-place air voids on the performance of asphalt pavements using data from the LTPP program and other appropriate sources.
状态：	Completed
资金：	450000
资助组织：	Federal Highway Administration
项目负责人：	Harrigan, Edward T
执行机构：	National Center for Asphalt Technology
主要研究人员：	Heitzman, Michael
开始时间：	20180401
预计完成日期：	20200630
实际结束时间：	20200630