Related papers
2018 Las-Vegas : Design of large diameter buried pipesAuthor(s) : Anders Andtbacka, Frans Alferink, Peter Sejersen
The behavior of buried plastic pipes is already well described in standards and technical specifications and as well as proven in real life conditions. Plastics pipes in diameters up to around 400 mm are already in use for more than 60 years and pipes with larger diameters for more than 20 years now. All with good...
2016 Berlin : The experience with the use of UPVC pipes in various buried applicationsAuthor(s) : Frans Alferink
PVC pipes for buried applications for water, sewer and gas, has developed an excellent track record. PVC is very inert, has a high resistance against permeation of soil contaminations and gas components and meanwhile has a long proven lifetime. Next to that, the lifecycle costs of buried PVC pipe systems are amongst...
2014 Chicago : PVC-O: Expanding in Technology and ApplicationAuthor(s) : André Nijland, Frans Alferink
PVC-U is used around the globe for potable water supply and sewer applications. This is due to its strength and stiffness as well as to its excellent flow properties. PVC-U shows an excellent performance in protecting the potable water quality. And it is registered that failure rates of PVCU pipelines are very low....
2006 Washington DC : Buried Plastics Chambers - PerformanceAuthor(s) : Alferink
Plastics pipes products are more and more appreciated in sewer schemes throughout the world.
The advantages of thermoplastics, like the good resistance against sewer environments and the
possibility to built complete tight systems are many times the drivers to use thermoplastic pipes
and chambers. Plastics chambers...
2004 Milan : Combined Loading of Buried Thermoplastics Pressure PipesAuthor(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...
1998 Gothenburg : Design of Thermoplastics PipesAuthor(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...
1998 Gothenburg : The Design of Thermoplastics PipesAuthor(s) : Alferink, Bjoerklund, Kallioinen
Over the last 15 years several attempts have been undertaken to establish a design method for
plastics pipes (IS0 TC138 WG13) and over the last ten years to establish an unified design
method for all buried pipes (CEN TC1641165 JWGI). Several national methods are available
and it is shown over the last ten years that...
1995 Edinburgh : Old PVC gravity sewer pipes Long Term PerformanceAuthor(s) : Alferink, Guldback, Grootook
Wavin gained a lot of experience with operational PVC sewer pipes by monitoring installations and measuring pipe deflections over a period of about 35 years, as reflected in the database "PiPer". Some of the oldest pipes have been measured and dug up now to study the durability of these pipes. Furthermore the results...
1992 Eindhoven : Effect of Installation Conditions on Buried Plastics PipesAuthor(s) : Alferink, Wolters
Results of deformation measurements carried out
on buried plastics pipes installed at six
different tests sites are discussed in this
paper. The results show that the deflection of
buried pipes is usually rather small and the
time dependence is limited to a few years after
installation. Traffic loading does not result...
1988 Bath : Deformations in Buried Flexible PipesAuthor(s) : Alferink, Wolters
Knowledge about the behaviour of buried flexible pipes has become more and more important in
the Netherlands.
It serves several objectives, for instance, to
evaluate stress corrosion, installation techniques and new materials, as well as drawing up
new design codes and test procedures for pipes
and components.
This...
1985 York : Jointing Methods for PE Casing Pipes of District Heating SystemsAuthor(s) : Alferink, Blom, Venema, Wolters
Joints in PE casings of district heating pipelines are made by extrusion welding, butt welding or sleeves in which sealing is obtained by an adhesive. To set up guidelines for making these joints a lot of research has been performed, part of which is described in this paper.
Joints of a good quality are obtained if...
The Application of PVC-O Pipes for Water Supply and Pressure SewageAuthor(s) : Alferink
