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Epoxy-coated rebar doing well in Indiana after all these years, study finds

Article Abstract:

An excellent protection against corrosion is provided by the epoxy coatings and concrete combination of the bridges in Indiana even 18 years after their construction despite questions about the epoxy's value. These types of bridges show long-term performance against a severe chloride environment. The chloride concentration is much higher than the threshold value in the level of reinforcement of the bridges. The result of the study performed with the seven bridges in Indiana reveals that the chloride content decreases with the increase in concrete cover, disbondment of the coating is absent in the reinforcement.

Publisher: American Society of Civil Engineers
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 1995
Research, Epoxy coatings

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Out with the old

Article Abstract:

Florida Department of Transportation officials faced the task of demolishing the Sunshine Skyway Bridge following an accident which damaged the structure. The project's first phase involved dismantling the main piers, deck and structural steel. The demolition phase included lowering the main span using a special rig with cables. Then, steel trusses were cut with the use of explosives which detonate on a small area and burn through the steel. Cranes served to detach the concrete beams. Meanwhile, workers demolished the concrete piers with explosives and took them below the waterline.

Author: Irwin, Michael, Terpening, Thomas B.
Publisher: American Society of Civil Engineers
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 1992
Methods, Contracts, Wrecking, Demolition, Sunshine Skyway Bridge, Florida. Department of Transportation

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Rock stars

Article Abstract:

The combination of digital imaging and mapping techniques with a mechnical rock-scaling process, for the completion of highway remediation on the Interstate 90 in the state of Washington, is described.

Author: Findley, David P.
Publisher: American Society of Civil Engineers
Publication Name: Civil Engineering
Subject: Science and technology
ISSN: 0885-7024
Year: 2007
General services, Washington, Usage, Imaging systems, Imaging technology

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Subjects list: Maintenance and repair, Bridges, Bridges (Structures)
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