TEPPFA project update
At TEPPFA we have a continuous programme of projects related to pipe systems and their applications. Here is a brief resume of some of the projects which are in progress at the moment:
Life Expectancy of Sewers
A major new TEPPFA project is close to completion which will provide designers of sewer systems with more data on the expected lifetime of polypropylene and polyethylene sewer pipes. This project includes the excavation and testing of existing pipes which have already been in service for up to 40 years together with wide ranging laboratory test work and analysis of existing data. As is often the case with our projects, we are currently having the methodology, data collection and results reviewed by an independent expert to confirm the validity of the outcome. This process is expected to be completed shortly which will allow us to publish the results and conclusions of this important project. Earlier research has already demonstrated that PVC sewer pipes have a life expectancy of at least 100 years.
New EN Standard for Infiltration Cells
Plastic infiltration cells are now widely used across Europe and have revolutionised the design of stormwater management and flood prevention schemes. There are currently no EN Standards specifically covering these products and in many countries it is not easy for designers to compare the performance of the wide range of products on offer. Recognising this issue TEPPFA was instrumental in initiating the preparation of a new EN product standard which will set out a range of detailed test methods to determine structural performance and give designers the confidence that they are making “like for like” comparisons when selecting the appropriate product for their project. Technical experts from TEPPFA have been extensively involved in the preparation of the new standard which is progressing well but there is still some way to go before the final version is published by CEN.
Sewer Pipe Stiffness Classes
To make it easier to select the correct pipe stiffness class for plastic sewer and drainage pipes from the wide range available, TEPPFA is currently preparing a simple guide to assist designers and installers which will be available in early 2014.