The effectiveness of autogenous metallic (iron and copper) pipe leak repair as a function of leak size, pipe wall thickness, water pressure, and leak orientation was examined at water pressures up to 60 psi. The time to repair for carbon steel pipe leaks statistically increased with leak size to the power of 0.89 to 1.89, and decreased with pipe wall thickness to the power of −1.9 to −1.0. Additionally, water pressure and leak orientation did not influence the time to or likelihood of self-repair of galvanized iron coated pipe leaks, but leak size was a limiting factor as the repair likelihood decreased with the ln of leak size with a slope of −0.65. In contrast, the time to repair 150 μm leaks in copper statistically increased with water pressure to the power of 1.7.
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1 July 2017
CORROSION ENGINEERING|
February 05 2017
Impact of Leak Size, Pipe Wall Thickness, Water Pressure, and Leak Orientation on Autogenous Metallic Pipe Leak Repair
Min Tang;
Min Tang
*Civil and Environmental Engineering Department, Virginia Tech, Durham Hall 418, Blacksburg, VA 24061.
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Marc Edwards
Marc Edwards
‡
*Civil and Environmental Engineering Department, Virginia Tech, Durham Hall 418, Blacksburg, VA 24061.
‡Corresponding author. E-mail: edwardsm@vt.edu.
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CORROSION (2017) 73 (7): 868–879.
Article history
Received:
November 06 2016
Revision Received:
February 05 2017
Accepted:
February 05 2017
Citation
Min Tang, Marc Edwards; Impact of Leak Size, Pipe Wall Thickness, Water Pressure, and Leak Orientation on Autogenous Metallic Pipe Leak Repair. CORROSION 1 July 2017; 73 (7): 868–879. doi: https://doi.org/10.5006/2323
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