详情

Determining an Acceptable California Bearing Ratio (CBR) Value for Kansas Subgrades Based on Pavement Distress Data

项目名称：	Determining an Acceptable California Bearing Ratio (CBR) Value for Kansas Subgrades Based on Pavement Distress Data
摘要：	The main objective of this study is to provide engineering science based evaluation related to the acceptability of a CBR value of 5 as a lower limit for existing Kansas subgrade soils and provide recommendations for what the acceptable CBR value should be. This will be accomplished by conducting extensive statistical analyses for which all the above data will be used including: 1) initial pavement layers present along with layer thicknesses and surface treatment procedures to date, 2) cumulative ESAL�s from initial construction to the time DCP test data was taken, 3) core analysis at the locations of DCP tests, and 4) historical surface distress data for the existing pavement segments. In addition, historical soil data available at the KDOT will be reviewed. It is anticipated that subgrade classification (USCS and/or Kansas), grain size distribution, Atterberg limits (if applicable), moisture and mass density will be available. Soil classification will be useful to establish a correlation between the DCP/CBR, pavement distress, pavement type, and soil type.
状态：	Active
资金：	67,236
资助组织：	Kansas Department of Transportation
项目负责人：	Barrett, Ryan
执行机构：	Kansas State University Transportation Center
主要研究人员：	Peric, Dunja
开始时间：	20180503
预计完成日期：	20191203
实际结束时间：	0