Document Type
Report
Publication Date
8-2014
Abstract
With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push-out tests (shear strength evaluations). Interviews with bridge owners and contractors indicated that concrete deck replacement was more economical than replacing an entire superstructure under the assumption that the salvaged superstructure has adequate remaining service life and capacity. Surveys and workshops provided insight into advantages and disadvantages of deck removal methods, information that was used to guide testing. Small-scale trials explored three promising deck removal methods: hydrodemolition, chemical splitting, and peeling.
Report Number
WBS: 25-1121-0003-134; Iowa DOT TR-647; InTrans 12-435
Granting Agencies
Iowa Highway Research Board, Iowa DOT;
Mid-America Transportation Center;
U.S. DOT Research and Innovative Technology Center
Language
English
File Format
File Size
7 MB
Recommended Citation
Phares, Brent M.; Shane, Jennifer S.; Dahlberg, Justin Michael; and Dang, Hongtao, "Methods for Removing Concrete Decks from Bridge Girders, TR-647" (2014). InTrans Project Reports. 72.
https://lib.dr.iastate.edu/intrans_reports/72
Comments
The related 3-page technology transfer summary, under the same title, can be found at: http://lib.dr.iastate.edu/intrans_techtransfer/