Case Studies # 2001 Munich
A number of PVC pressure pipes were exhumed from a large rural water supply scheme constructed in the early 1970s. The pipes had been extruded by three manufacturers in both elastomeric seal and solvent cement joints. The pipes were subjected to a range of mechanical tests in order to assess whether there had been any deterioration during their service. The material properties were found to be similar to contemporary production. These results, in conjunction with an assessment of the scheme's operating conditions, indicate the pipes should continue to provide satisfactory service for many years.