Investigators fault epoxy 'creep' in Big Dig collapse

Article Abstract:

Investigators from the National Transportation Safety Board (NTSB) concluded that the use of an epoxy anchor adhesive was the cause of the collapse of 10 ceiling panels in the D portal connecting Interstate 90 in Boston to the Ted Williams Tunnel, which is part of the Big Dig project. The NTSB raised issues on how the epoxy came to be used and why inspections were not carried out even after signs of displacement or "creep".

Legal issues & crime, Epoxy Adhesives, Usage, Company legal issue, Investigations, Design and construction, Tunnels, United States. National Transportation Safety Board

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Reservoir membrane can pinpoint leaks

Article Abstract:

The details pertaining to a waterproof membrane system, termed, Hylam IQ, designed by DRC Polymer Products, are presented. The membrane which would be applied to the exterior of underground reservoirs or clear wells, will protect from corrosion of the roof and contamination of potable water.

Product information, Plastics Materials and Synthetics, Waterproofing Sealants, Polymer industry

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Pipe leaks sealed from the inside

Article Abstract:

Development of an inside sealing technology for water pump leakages by Brinker Technology is presented.

Services information, Nonferrous Rolling and Drawing, Steel pipe and tubes, Concrete products, not elsewhere classified, Plastics pipe, Pipe industry, Pipe and tube industry, Water-pipes, Water pipes, Sealing (Technology), Sealing (Process), Service enhancement, Tubing industry

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