Plastic Pipes Conference Association papers

In this section, you will find a database of all articles presented and published by PPCA in biannual conferences organized by PPCA since 1970.

INTRODUCTION OF LARGE DIA PROFILED PE/PP PIPES FOR INNOVATIVE PIPED DISTRIBUTION NETWORK (PDN) FOR IRRIGATION IN INDIA

Author(s) : C. B. Dandekar 2018 Las-Vegas

Agriculture is the major occupation practiced in India, and irrigation is therefore a vital part of the entire water budget of the country. India possesses only 4% of the total world’s fresh water resource, of which, more than 80% is consumed solely in the Agriculture Sector (Dhawan, 2017). Canal based distribution...

INVESTIGATION OF THE CREEP FAILURE BEHAVIOR OF POLYAMIDE PIPES

Author(s) : Hiroto Taguchi, Kaori Numata 2018 Las-Vegas

We elucidated the creep failure behavior of polyamide pipes. We conducted the hydrostatic test and Notched Pipe Test (NPT) at 80 and 90 °C for up to 10000 h for PA pipes whose creep failure behavior has not been fully elucidated yet. In the tests, the change in the failure mode from ductile failure to brittle...

INVESTIGATION OF THE FAILURE BEHAVIOR OF POLYETHYLENE ELECTROFUSION SOCKETS

Author(s) : Isabelle J. Berger, Andreas Frank, Gerald Pinter, David Nitsche, Dirk Petry 2018 Las-Vegas

Electrofusion (EF) sockets constitute a well-established and practically proven technology for the joining of polyethylene (PE) pressure pipes. As for the pipes, the potential lifetime of such welding connections is beside other properties also depending on the resistance against slow crack growth (SCG). The current...

LABORATORY DEVICE FOR CHECKING THE THERMAL ENERGY DELIVERED BY THE ELECTROFUSION FITTINGS

Author(s) : Dominique GUEUGNAUT, Adil BOUJLAL, Aymeric LOPITAUX, Bertrand SEVRE 2018 Las-Vegas

A special concept has been developed by GRTgaz Research and Innovation Center for Energy (RICE) for temperature mapping at the interface of an electrowelded assembly.The technical solution consists of a tubular piece in place of the real PE pipe, made of a non-weldable polymer with thermal parameters close to those of...

LARGE DIAMETER SPIRAL WOUND PRESSURE PIPES

Author(s) : Bülent Kuzkaya 2018 Las-Vegas

Spiral wound pipes are becoming more and more important in larger diameter HDPE pipe production technology. The spiral wound structured wall pipes with profiles are already well known and used for several low or non-pressure pipe applications. This paper shows that spiral wound pressure pipes can fulfill the...

Large pressure pipe system – Fully PE100

Author(s) : Sverre Tragethon, Martin Andersson 2018 Las-Vegas

Global mega trends push for investments in sewage treatment capacity & efficiency. A trend is to go for central regional treatment sites, typically remotely located from dense populated cities. This calls for high capacity pressure sewage transmission pipelines. Reliable operation is of course of paramount...

LITERATURE REVIEW: EFFECT OF ClO 2 ON AGEING OF POLYMER MATERIALS AND RELATED TEST METHODS

Author(s) : E.J.W. van der Stok, K. Jacobson, S.O. Jansma, D. Lukes 2018 Las-Vegas

The lack of a fast, universally-accepted test method for chlorine-dioxide-disinfected water is hindering the development of improved plastic piping materials. A literature survey was performed to define the degradation process in which chlorine dioxide affects the ageing of polypropylene, and to describe and reflect...

LONGITUDINAL CRACK IN LARGE PVC-U PRESSURE PIPES. PIPE GELATION INFLUENCE. CASE STUDY III

Author(s) : Joaquín Lahoz Castillo 2018 Las-Vegas

Irrigation networks in Spain extensively make use of plastic pressure pipes systems. Some recent failures focus the attention on Rapid Crack Propagation phenomena. Larger high-pressure PVC-u pipes are involved in most incidences detected. The level of gelation of those pipes were measured per EN-ISO 1452-2 test...

MODERN PE PIPE ENABLES THE TRANSPORT OF HYDROGEN

Author(s) : R.J.M. Hermkens, H. Colmer, H.A. Ophoff 2018 Las-Vegas

To investigate the suitability of PE pipes for the transport of hydrogen on a specific industrial site, three topics were investigated. These topics are: the chemical resistance of PE to hydrogen, the permeation rate of hydrogen through PE and the electrofusion of PE pipes exposed to hydrogen. It can be concluded that...

MOLECULARLY ORIENTED AWWA C909 PIPE FOR SEISMIC APPLICATIONS

Author(s) : Richard St-Aubin, Dr. Thomas O’Rourke, Dr. Brad Wham, Blake Berger 2018 Las-Vegas

Molecularly oriented polyvinyl chloride (PVC-O) pipe has been found to withstand large ground deformation during seismic events without damage. The properties of PVC-O pipe that support this performance have been investigated in a multi-year testing program undertaken at the Geotechnical Lifelines Large Scale Testing...

MULTILAYER POLYMER PIPES - POSSIBLE UTILIZATION OF RECYCLED MATERIAL

Author(s) : Pavel Hutar, Jan Poduska, Pavol Dlhy, Andreas Frank, Jaroslav Kucera, Jiri Sadilek, Gerald Pinter, Lubos Nahlik 2018 Las-Vegas

This paper investigates possible use of recycled material as a part of a multilayer polyethylene pressure pipe system. Crack propagation in different configurations is simulated. Lifetimes of pipes containing recycled material are calculated. Results are compared with lifetimes of pipes made of virgin...

NEW CROSSLINKED (PEX) PIPES FROM SUSTAINABLE RESOURCES

Author(s) : Jacob John, Andrew J. Ortquist, Mats Thunwall, Patrik A. Roseen 2018 Las-Vegas

This study investigates production of crosslinked polyethylene (PEX) pipes using a resin obtained from a renewable resource via twin-screw extruder technology. PEX pipes were extruded using petroleum-based and renewable high-density polyethylene (HDPE) for comparison. Testing using relevant ASTM standards on the new...

NEW DISCOVERIES IN STABILIZING DRINKING WATER PIPES IN CONTACT WITH CHLORINE DIOXIDE

Author(s) : J.D. Kim, S. Kim , T. Schmutz, C. Malchaire, D. Scholz, K. Keck 2018 Las-Vegas

Since a few years, pipe producers are facing the challenge to protect their plastic pipe from degradation due to chlorine dioxide. Unfortunately, most existing stabilization solutions are not effective enough to insure the desired lifetime of the material. This study shows how the latest development allow to top-up...

NEW EN STANDARD FOR INFILTRATION UNITS

Author(s) : Peter Verlaan 2018 Las-Vegas

Ten years ago, The European Plastic Pipes and Fittings Association (TEPPFA) has taken the initiative to prepare a draft 'Standard for Infiltration units' based on existing national specifications, at that time (in particular) available in France, Germany, United Kingdom and the Netherlands. This draft 'Standard for...

NEW HIGH MODULUS POLYPROPYLENE HELPS THE DEVELOPMENT OF LARGE DIAMETER UTILITY TUNNEL

Author(s) : Dongyu Fang, Mark Yu, Zhang Qingfu 2018 Las-Vegas

In the present paper we introduced how high modulus polypropylene helps an innovative design of utility tunnel up to 4000mm in diameter. High modulus polypropylene shows high modulus but still maintain reasonable flexibility so that tunnel and surrounding soil could form an integrated system, which means no force is...

NEW PROCESS FOR THE HOT FORMING OF THE INTEGRATED SOCKET ON UNDERGROUND DRAINAGE PIPES MADE OF HIGH MODULUS POLYPROPYLENE WITH A COMPACT OR MULTILAYER WALL STRUCTURE

Author(s) : Giorgio Tabanelli 2018 Las-Vegas

In underground plastic drainage pipes the integrated socket joint technology is now used widely in PVC pipes with a compact or multilayer wall. On the other hand, in PP and HDPE pipes this form of connection, despite its well-known advantages, is still not widely used. The reason for this is basically due to the...

NEW TESTING METHOD FOR ELECTROFUSION WELDS

Author(s) : Dr. Love Pallon, Dr. Karin Jacobsson, Daniel Ejdeholm, Marie Allvar, Rikard Kärrbrant 2018 Las-Vegas

This work presents the development of the Full Length Tensile Test (FLTT), a method that enables an objective judgement of welding quality of electrofusion welds by measuring the energy to break (J/mm2 ). In this way a brittle, ductile and transitional mode failure can be differentiated without subjective visual...

NOVEL STABILIZERS FOR PVC/CPVC PIPE AND FITTINGS

Author(s) : Mario Berna, Alessandro Tinarelli 2018 Las-Vegas

PVC pipes and fittings are currently manufactured using a wide range of stabilizer systems whilst CPVC is currently manufactured using Tin stabilizers. The aim of this paper is to present a new type of heat stabilizer (booster) to be used in combination with Tin stabilizer; surprisingly this product offers synergistic...

PANORAMIC VIEW OF A WATER MAIN REPLACEMENT PROJECT IN A FIRE-SEISMIC GEOHAZARD ZONE

Author(s) : K. Moita 2018 Las-Vegas

East Bay Municipal Utility District (District) provides water and wastewater services to the eastern region of the San Francisco Bay Area in California. The District’s potable water system serves approximately 1.4 million customers in a 332-square-mile area that spans portions of Alameda and Contra Costa Counties....

PE100 LARGE DIAMETER WATER TRANSMISSION PIPELINES TAKE OFF IN ASIA

Author(s) : Andrew Wedgner, Muhammad Qasim, Arsenio Sembrano 2018 Las-Vegas

Developments in material and pipe extrusion technology now enable converters to produce PE100 solid wall pipes of up to 2,800mm OD, but the use of such large diameters has been limited to industrial applications. This is now starting to change with water transmission pipelines of up to 1400mm OD being laid in the UAE...



Members of the Association

BOREALISBOROUGEINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE
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