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Harbor
Objective
The objective was to rehabilitate the concrete, protect existing
reinforcement from corrosion, and increase the load capacity of
the areas at each end of the Bravo 25 berthing at Naval Station
(NAVSTA) Pearl Harbor (Figure 1). This upgrade provided platforms
to support mobile crane outrigger loads up to 125 kip (560 kN) and
a uniform load up to 750 psf (35 kPa). To accomplish this unsound
concrete was removed and replaced, an impressed current cathodic
protection (ICCP) system was installed to protect the existing steel
reinforcing, and carbon/epoxy composite reinforcing was added to
the top and bottom surfaces of the deck and track slabs. The upgrade
was completed with minimal interruptions to normal pier operations.
The Naval Facilities Engineering Service Center (NFESC) designed
and detailed the concrete repair and rehabilitation, embedded titanium
strip ICCP system, and a carbon/epoxy composite strength upgrade.
The construction contract was awarded based on best value and technical
qualifications to ACE Restoration and Waterproofing Inc., of Fullerton,
California. The ICCP installation was subcontracted to CORPRO. SIKA
Corporation provided concrete repair materials, DFI Composites supplied
pultruded carbon reinforcing rods, and Master Builders Technologies
supplied carbon laminate reinforcing systems. This report provides
names of specific products, manufacturers, suppliers, and contractors
of upgrade, repair, and cathodic protection of concrete structures.
This does not constitute endorsement or recommendation of these
products and services.
Figure 1. Berthing Bravo 25 at NAVSTA, Pearl Harbor, Hawaii.
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