Materials Performance

AUG 2018

Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.

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40 AUGUST 2018 W W W.MATERIALSPERFORMANCE.COM one project transformed into a phased sys- tem that could be budgeted over multiple years. The repairs were prioritized based on need and cost, which led to the addition of the H-pile jacket system and replace- ment of the sheet pile anode sleds in 2016, the installation of the ICCP system to pro- tect the soil side of the sheet piling in spring of 2018, and installation of the direct-weld anodes for the H-piling and recoating of the sheet piling scheduled in the fall of 2018. Case Example 2—Bridge Deck Corrosion Damage Due to Deicers In contrast to the mild, wet climate of the southeast, the Alaskan interior is char- acterized by much less precipitation (<11 in [279 mm] on average), warm to hot sum- FIGURE 3 Elevation of anodes and pile jackets of the parkover and garage H-piles. FIGURE 4 Potential map and delaminations on a bridge deck on Alaska Route 3/George Parks Highway. FIGURE 5 Corrosion current map of a repaired bridge deck on Alaska Route 3/George Parks Highway. during the narrow spring or fall work sea- sons when the ships are not in port, or dur- ing the summer cruise season when as many as 9,000 passengers travel through the facility daily. This means construction schedules are extremely tight and delays are unacceptable. Additionally, there are no roads to Juneau from the mainland, mean- ing all supplies and personnel must arrive by boat or plane, which requires diligent planning by th e city, contractors, and designer. The final obstacle encountered is cost. Comprehensive corrosion plans make eco- nomic sense for service life, but the money to pay for that work must come from some- where. Original plans to perform all the parkover and garage H-piles repair work in CATHODIC PROTECTION

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