2012 Barcelona : Polyethylene pipes: PE water pipes and chlorinated disinfectants: a pragmatic approach to even safer solutions
Author(s) : Francis R. Costa, Christophe Salles, Anh Tuan Tran, Jeroen Oderkerk and Thomas Hjertberg
Over the years polyethylene has gained preference as the material of choice for
water distribution pipes due to its long successful track record offering comparatively
lower frequency of leakage, corrosion resistance, flexibility, light weight, easy
installation, etc. However, in recent years, there have been growing...
2006 Washington DC : Flexible, Pre-Insulated Polymer District Heating Pipes
Author(s) : Bassewitz, Janson, Liebel
From Jan 6th 2001 until March 31st 2005 a research project, funded by the German Ministry for Economy and Research had been carried out in order to investigate technical details not yet researched. The results of the project have shown that polymer flexible pipes for district heating are fit for purpose.The research...
2004 Milan : Combined Loading of Buried Thermoplastics Pressure Pipes
Author(s) : Janson, Alferink, Wolters
This paper presents the results of work that was performed at the request of TEPPFA , The
European Plastics Pipes and Fittings Association, on the issue of “Combined loading”
(external and internal loading) of buried thermoplastics pressure pipes.
The work is of great importance for users and designers of...
2004 Milan : Strength Investigation of Large Diameter PE 100 Low Sag Pipe
Author(s) : Janson, Bergstroem, Baeckman, Blomster
When performing strength quality control of PE pressure pipes made of new grades it is important to take the creep vs. time into consideration and not only the common stress vs.time behaviour. Thus, it is just the relation between linear strain and logarithmic time, which will within a reasonable testing time help us...
1998 Gothenburg : Design & Testing for Obtaining Sustainable Products
Author(s) : Janson
Sustainable Development’ is a concept which is often used today, particularly when discussing necessary efforts for preventing persistent environmental problems. It came up as a result of the findings already by the Rome Club et al in the early 70s’, implying that the natural resources of the earth are limited and in...
1998 Gothenburg : Design of Thermoplastics Pipes
Author(s) : Alferink, Janson, Olliff
Extensive field trials are being performed in a project sponsored by TEPPFA and APME,to
obtain well documented information about the behaviour of buried thermoplastics pipes. as
outlined in the paper by Alferink, Bjorklund and Kallioinen (Ref 1). This information is of
vital importance to obtain a workable design...
1995 Edinburgh : Long-term behaviour of buried PVC sewer pipes
Author(s) : Janson
At the International Conference on Plastics Pipes W in Bath 1988, a paper was presented by the Author called : "Physical ageing of buried PVC sewer pipes as affecting their long-term behaviour". The tests performed on constantly deflected pipes referred to at that time had been running for approximately one year....
1992 Eindhoven : Methods for Tightness Testing of Plastics Pressure Pipelines
Author(s) : Janson
New research and development particularly concerning the long-term strain of modern PE resins have
created a basis for a simple and adequate
method for tightness testing of plastics pressure
pipelines. Thus, it is shown that for plastics
pipes subjected to constant internal hydraulic
pressure, it is quite possible to...
1972 Southampton : Case study 4 Practical experience with sewer pipes
Author(s) : Janson, Molin
In the Nordic countries common research work concerning buried sewer plastics pipes has been followed by an independent evaluation group led by the authors. This group was founded in 1968 by the Nordic plastic industries in order to create a forum for independent evaluation of all the various research programmes so as...