详情

2272 - Performance of Moisture Barriers to Enhance Pavement Performance Over Swelling Soils

项目名称：	2272 - Performance of Moisture Barriers to Enhance Pavement Performance Over Swelling Soils
摘要：	The Oklahoma Department of Transportation has invested significant amounts of money on several projects to construct low-permeability barriers to prevent moisture changes in swelling soils beneath pavements. However, there has been relatively little post-construction monitoring of these sites to assess the performance and cost-effectiveness of the moisture barriers and associated pavements. Given the high material cost and additional construction cost associated with installing moisture barriers, there is a need to assess performance relative to reductions in moisture infiltration into swelling subgrades. Given the current state-of-the-art knowledge in this field, there is a need for laboratory soil testing, field monitoring, and numerical modeling of the problem. This research will assess the performance of moisture barriers, determine whether these are cost-effective solutions for pavement design over swelling soils, and develop recommendations for enhancing the design of moisture barriers.
状态：	Completed
资金：	98895
资助组织：	Oklahoma Department of Transportation
项目负责人：	Clarke, Christopher R
执行机构：	Oklahoma State University, Stillwater
主要研究人员：	Bulut, Rifat
开始时间：	20171001
预计完成日期：	20180930
实际结束时间：	20190930