Methods for Removing Concrete Decks from Bridge Girders, TR-647

Thumbnail Image
Date
2014-08-01
Authors
Phares, Brent
Dahlberg, Justin
Dang, Hongtao
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
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.

Series Number
Journal Issue
Is Version Of
Versions
Series
WBS: 25-1121-0003-134; Iowa DOT TR-647; InTrans 12-435
Academic or Administrative Unit
Type
article
Comments

The related 3-page technology transfer summary, under the same title, can be found at: http://lib.dr.iastate.edu/intrans_techtransfer/

Rights Statement
Copyright
Funding
Subject Categories
DOI
Supplemental Resources
Source
Collections