Arrowhead Stadium originally opened in 1972 and is known to be the home to the Super Bowl Champions Kansas City Chiefs. Renovations of the stadium completed in 2010 included adding luxury suites on the club level of the stadium. This meant that the upper seating bowl not only had to seat more than 34,000 Chief fans but also act as a "roof" for the new luxury suites. The upper seating bowl comprises L-shaped precast concrete seating risers spanning from cast-in-place concrete raker beams and is divided by sixteen expansion joints. In 2018, the planning for the upper seating bowl waterproofing program began. The goal for the repair project was to implement waterproofing upgrades to protect the concrete for the next 10 years. To add to the challenge of a large-scale waterproofing and structural repair project, the construction efforts had to include coordination with simultaneous seat replacement to be completed in a single off-season.
Arlington Memorial Bridge is a reinforced concrete spandrel arch bridge that connects Washington, DC and Virginia across the Potomac River. After over 85 years in service, the bridge started exhibiting signs of deterioration, including reinforcement corrosion. As part of a major rehabilitation effort to extend the bridge’s service life, targeted cathodic protection (CP) systems were installed in the arch cross-walls, floors, and under arches to mitigate and prevent corrosion. The implemented CP system consisted of galvanic and two-stage anodes to mitigate corrosion. Galvanic anodes were installed in the repair areas to prevent the ring anode affect and ensure a durable concrete repair. The two-stage anodes were installed in areas of concrete which were actively corroding without signs of concrete deterioration.
In this presentation, we will address the effect that corrosion has on our concrete infrastructure, including buildings, bridges, sea walls, cooling towers, docks, and many other reinforced concrete structures.
This session describes how novel corrosion management techniques have been used to extend the life of a variety of heritage structures, including a church, a bridge and even a castle.
Terracon performed an investigation of a five-story concrete constructed building which had sustained significant damage, both before and after Hurricane Matthew in Nassau, Bahamas.
This two-part webinar series discusses structural condition assessment nuances, complexities, and challenges, including corrosion implications, considerations for coastal buildings, safety implications, historical aspects, new assessment tools, regulations, industry standards, and limitations.
This 60-minute session will be comprised of a 10-15 minute introduction to ACI 562, followed by a 45-minute discussion by a moderated panel of various experienced stakeholders in the concrete repair industry, including Specifiers, Contractors, Manufacturer/Distributors, and Owners.
Galvanized corrugated metal and concrete underground culverts are common infrastructure in North American highways and stormwater management. A shotcrete lining is a cost-effective and efficient method to strengthen and significantly extend their useful life.