Fundamentals # 1992 Eindhoven
A brief overview is presented on some important research programs on plastic pipes conducted within the last ten years. Several signif icant research results and their impact on manufacturers and users of plastic pipes are high1 ighted. Results of research and development (R&D) on material characterization, in-service aging, effects of outdoor storage. failure causes and mechanisms, acceptance and quallfication testlng, and service life prediction are described. A brief summary is given on recent developments of materials, devices, guidelines, and technologies for fusion joining and nondestructive examination. squeeze-off. bending, dl scharging static electricity, and repairing damaged pipes. On the basis of past achievements and guided by present and percetved future needs, a perspective vision is developed for future R&D focusing on plastic pipes ~sed in gas distribution networks.