StoCretec
Niederselters sewage treatment plant: repair and restoration of sand trap and channel
The sewage treatment plant in Niederselters, Germany, has been in operation since 1978. In 2013, after defects in the concrete had been determined, a consulting engineering firm was commissioned to provide a damage analysis. The result: poor tensile and compressive strength, excessive sulfate content, and advanced carbonation. There was an urgent need for repair and restoration. Rain spillway basins 1 and 2 as well as the sand and grease traps, including in- and outflow channels, were most affected. Here, rapid action was of the essence to prevent further deterioration of the current state and...
