2021 Amsterdam : A TRADE ASSOCIATION EXPLORED
Author(s) : Drew Mueller, Peter Dyke
HDPE Pipe holds a dominant position in several markets in North America: natural gas distribution, oil
patch, mining, landfill and geothermal. So why are polyethylene’s municipal water and wastewater
market shares so much lower than these other industries? How has the polyethylene industry been
successful in growing...
2021 Amsterdam : APPLICATION OF PP-R COMPOSITE REINFORCED PIPES IN HOT AND COLD WATER SYSTEMS
Author(s) : Lei Wang, Guozhi Xu, Qiaoping Qiu, Weihua Lu, Yanwang Han
PP-R (random copolymerized polypropylene) has been widely used in hot and cold
water systems. However, the standard PP-R pipes have the disadvantages of a large
high-temperature thermal expansion coefficient, an insufficient notched impact strength,
and a low temperature and pressure resistance.
In this paper, a new...
2021 Amsterdam : CHALLENGING THE 10% WALL THICKNESS RULE FOR HDPE MARINE PIPELINES
Author(s) : Ilija Radeljic, Ebbe Smith
HDPE pipe can be relatively easily scratched during the manipulation on the site,
which is especially true for the marine pipelines. Installing the scratched marine pipe
with the S bend method presents a risk and repair methods are usually performed.
Currently, there is no standard defining the repair procedure, in...
2021 Amsterdam : FLOWABLE FILL FOR PLASTIC PIPE
Author(s) : Amster Howard
Flowable fill is used for many applications, but mainly for pipe trench embedment and
backfill. There are three ways that using flowable fill can be kind to the environment.
Because flowable fill is self-leveling and has a strength greater than the native soil, the
trench cross section can be minimized. This means...
2021 Amsterdam : FROM MULTILAYER LAMINATES TO INDUSTRIAL PIPE APPLICATIONS – A GUIDELINE
Author(s) : Gerald Pinter, Johannes Wiener, Florian Arbeiter, Abhishek Tiwari, Otmar Kolednik
For pipe applications, catastrophic failure due to crack growth has to be prevented
by all means. Techniques to develop new and even tougher pipe materials are explored
in this contribution. The aim is to create a multi-layer architecture, that exhibits high
toughness as well as damage tolerance towards sharp notches....
2021 Amsterdam : INVESTIGATION OF THE QUALITY CHARACTERISTICS OF POLYAMIDE 12 PIPE WELDS
Author(s) : M. Eckes & Dr. B. Baudrit, Dr. M. Troughton & D. Wylie, H. van Laak & J. Fritz
Unplasticized polyamide 12 (PA-U12) is increasingly being used in pipe applications,
especially in the gas sector. However, the material behavior in the usual quality tests for
pipe welds has not yet been thoroughly investigated.
For this reason, two research institutes, worked in cooperation with a manufacturer
2021 Amsterdam : MODIFIED PLAIN STRAIN GROOVED TENSILE TEST TO EVALUATE LARGE DIAMETER PE PIPES
Author(s) : Thomas R. Kratochvilla, Patrick Grünbeck, Christoph Bruckner, Raimund Eremiasch, Harald Wilhelm, Mario Vukelja
In the last decades pipe dimensions of extruded PE pipes have reached new orders
of size. Today, PE pipes with outer diameters of up to DN/OD 3500 mm are produced
and used for pressure pipe applications like seawater intake/discharge, outfall, sewage
and industrial process piping systems.
To test the long-term...