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DELTA®-MS installation as drainage liner in the CSO tunnel in Atlanta, GA.

These pictures show the application of DELTA®-MS as a seepage layer in the CSO tunnel in Atlanta, GA. It acts as an effective relief layer for water seeping out of the bored tunnel surface. Without the application of DELTA®-MS the seepage water would interfere with placing and curing the concrete liner that is being placed as inner surface of the tunnel. The membrane was equipped with flame retarding additives to meet the requirements of DIN 4102, Class B1, and to reduce the fire hazards inside of the tunnel.

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