Title

A Study Examining The Effect Of Stray Current On The Integrity Of Continuous And Discontinuous Reinforcing Bars

Abstract

The effect of stray current on the integrity of continuous and discontinuous reinforcing bars was examined. Three different arrangements were selected for placement of reinforcing bar within the concrete test cylinders, allowing at least 102 mm of steel to extend from each cylinder. One set of concrete test cylinders was poured and cast with a continuous 406 mm segment of reinforcing bar, a second set of concrete test cylinders was constructed with discontinuous 406 mm reinforcing bars made by segmenting the bar into two 203 mm pieces. A third set of concrete test cylinders poured and cast also contained discontinuous 406 mm reinforcement bar segments that had been cut into two 203 mm pieces. Concrete cylinders that were exposed to DC current exceeding 4 mA were found to crack due to corrosion tubercle buildup within the concrete matrix, corresponding to a steel mass loss that exceeded up to 3.5 percent of the original reinforcing bar mass.

Publication Date

9-1-2011

Publication Title

Experimental Techniques

Volume

35

Issue

5

Number of Pages

53-58

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1111/j.1747-1567.2010.00656.x

Socpus ID

80053463437 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80053463437

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