Open Access. Powered by Scholars. Published by Universities.®
Civil and Environmental Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Civil and Environmental Engineering
Developing Deterioration Models For Nebraska Bridges, George Morcous
Developing Deterioration Models For Nebraska Bridges, George Morcous
Nebraska Department of Transportation: Research Reports
No abstract provided.
Improved Bridge Expansion Joints, Sudhir Palle, Theodore Hopwood Ii, Bobby W. Meade
Improved Bridge Expansion Joints, Sudhir Palle, Theodore Hopwood Ii, Bobby W. Meade
Kentucky Transportation Center Research Report
The Kentucky Transportation Cabinet (KYTC) has both open and closed bridge expansion joints and associated details that are problematic. Several state highway agencies (SHA) have joints that they believe are superior performers to other types and have prepared guidance documents for their use. A literature search indicated that several previous research studies, including national surveys, addressing SHA joint practices have been conducted over the past 10 years. For up-to-date information, a new set of surveys were developed and distributed to all the SHAs by email through the AASHTO Subcommittee on Maintenance-Bridge Technical Working Group chairman in June 2010. There were …
Automated Chemical Stabilizing Of Leaded Paint Residue From Bridge Maintenance Painting Operations, Bobby W. Meade, Theodore Hopwood Ii, Sudhir Palle
Automated Chemical Stabilizing Of Leaded Paint Residue From Bridge Maintenance Painting Operations, Bobby W. Meade, Theodore Hopwood Ii, Sudhir Palle
Kentucky Transportation Center Research Report
This study addressed the use of automated equipment to dose and mix lead stabilizing compounds to allow leaded paint residue/debris to be disposed at in-state contained landfills. The stabilizing would be conducted in situ at bridges being subjected to maintenance painting operations involving total coating removal and replacement. Many Kentucky bridges have existing painting that contains lead compounds at levels which may constitute hazardous wastes upon removal. The KYTC practice of recycling lead containing residue is working well at this time but the issue of a single recycler available continues to place KYTC in a position of returning to hazardous …
Kentucky Bridges With High-Strength Quenched And Tempered Steel, Theodore Hopwood Ii, Jared Fairchild
Kentucky Bridges With High-Strength Quenched And Tempered Steel, Theodore Hopwood Ii, Jared Fairchild
Kentucky Transportation Center Research Report
The Kentucky Transportation Cabinet (KYTC) has several bridges employing high-strength quenched and tempered (QT) steels. In the past several decades, weld and corrosion cracking problems have occurred with QT steel in three KYTC bridges. This material has typically been employed on large bridges in fracture-critical members which increases the concern about these steels. This study was performed to review the KYTC steel bridge inventory and identify bridges/structural member containing QT steels. The list consisted of any KYTC maintained bridge with an individual span greater than 150 feet. KTC used this list to identify each bridge and members containing QT steel. …