Boston, MA
Logan International Airport Terminal E
Scope/Solutions
The Terminal E Ticketing Concourse is an open space approximately 75 ft wide and 625 ft long. The floor structure is a lightweight slab on composite metal decking and includes a concrete overlay with an epoxy terrazzo floor surface. After the contractor placed the 4 in. thick overlay, they observed lifted slab edges, cracks, and hollow-sounding areas in some locations. The contractor retained SGH to investigate the problem and provide repair options.
Highlights of SGH’s work include the following:
- Evaluated the causes of the overlay problems using a fault tree analysis
- Recommended removal and replacement of the overlay due to the potential for reflective cracking of the terrazzo at the edges of repair areas
- Designed and specified the demolition of the original overlay and repair of demolition damage in the structural slab
- Designed the replacement overlay with special reinforcement details and a shrinkage-reducing admixture to avoid a recurrence of the problem
- Developed procedure briefs to assist the contractor with repairs of surface chips, shallow delaminations, and moderate and large size spalls in the structural slab.
- Visited the job site to identify spall areas in need of repair, to observe work progress, to evaluate conformance with repair procedures, and to resolve anomalous conditions
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Project Summary
2004
Completion Date
Solutions
Repair & Rehabilitation
Services
Structures
Markets
Infrastructure & Transportation
Client(s)
Modern Continental Construction
Specialized Capabilities
Repair & Strengthening | Temporary Construction
Key team members
Additional Projects
Northeast
Charlestown Bus Facility Shoreline Stabilization and Yard Improvements
The existing steel sheet pile seawall, which protects the facility from flooding and river erosion, was severely deteriorated. SGH investigated the failing seawall, including the pavement and soil loss behind it, and designed new shoreline stabilization and drainage systems.
Northeast
Bradley Palmer State Park Pedestrian/Equestrian Bridge
Built in the early 1900s, the pedestrian/equestrian bridge over the Ipswich River at Bradley Palmer State Park was closed because of deterioration. SGH investigated the structure and developed a rehabilitation program.