ConShield Technologies, Inc.
In 2000, the manholes near City Hall in Hampton, Virginia, were identified as being severely deteriorated from high levels of hydrogen sulfide gas which fed bacteria to form Microbiologically Induced Corrosion. When unprotected concrete is exposed to Hydrogen Sulfide Gas, bacteria can quickly grow creating sulfuric acid which allows structural damage in just a few short years. This was the case in the City of Hampton. The City of Hampton chose to fix the manhole on Queens Way using a process called PERMAFORM® fortified with ConShield® PERMAFORM® is a unique, patented process for reconstructing manholes quickly and cost-effectively, involving neither excavation nor interruption of the flow.