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Kentucky Transportation Center Research Report

2002

Highways

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Long-Term Benefits Of Stabilizing Soil Subgrades, Tommy C. Hopkins, Tony L. Beckham, Liecheng Sun, Bixian Ni, Barry Butcher Jun 2002

Long-Term Benefits Of Stabilizing Soil Subgrades, Tommy C. Hopkins, Tony L. Beckham, Liecheng Sun, Bixian Ni, Barry Butcher

Kentucky Transportation Center Research Report

Chemical admixtures have been used extensively since the mid-eighties in Kentucky to improve bearing strengths of soil subgrades. Most pavements in Kentucky are constructed on clayey soils. Although short-term observations at a small number of sites showed that chemical stabilization worked very well, a need existed to perform a more comprehensive review and to assess the long-term benefits of this subgrade stabilization method. The main intent of this study was an attempt to address questions concerning bearing strengths, longevity, durability, structural credit, economics, and performance of pavements resting on soil subgrades mixed with chemical admixtures. In-depth field and laboratory studies …


Kentucky Highway User Survey 2001, Ronald E. Langley, Ted Grossardt Apr 2002

Kentucky Highway User Survey 2001, Ronald E. Langley, Ted Grossardt

Kentucky Transportation Center Research Report

The purpose of this study was to continue the efforts begun in 1997 to monitor Kentucky public opinion regarding the quality of the highway system and also includes a portion to measure satisfaction with the current drivers’ license and registration renewal processes. Kentucky’s 2001 public opinion is compared to data collected since 1997 to gauge Kentucky’s progress over the past years.