2021 Amsterdam : A COST BENEFIT ANALYSIS OF PVC PIPES RECYCLING
Author(s) : A. Marangoni
The quality of infrastructures is a key driver for maximizing the performance of the
utilities networks and minimizing the environmental impacts associated with their
operation. The water and sewer pipes are key network elements to guarantee a
satisfactory service to the citizens. Their end-of-life management is an...
2021 Amsterdam : ANALYSIS OF PVC AND CPVC BLENDS
Author(s) : Saleem Shakir
Unplasticized formulations based on Poly(Vinyl Chloride) (PVC) and Chlorinated Poly(Vinyl
Chloride) (CPVC) resins offer technical solution to pressure piping systems that find extensive use in
residential and industrial applications. Building upon the desirable properties of the vinyl monomer, the
chlorine content of...
2021 Amsterdam : DEVELOPMENTS IN NORTH AMERICAN CONDUIT PRACTICES
Author(s) : Tom Stewart, Richard Hicks, Patrick Vibien, Lance MacNevin
Arguably, broadband technologies have become as vital to society as water delivery, waste removal
and energy distribution. However, the role of plastic conduit in broadband is often overlooked within
the piping industry and society in general. HDPE conduit is an essential component to the build -out of
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 : MODELLING THE MIGRATION FROM PVC-U PIPES INTO DRINKING WATER
Author(s) : C. Losher and P.V. Mercea
In the framework of the German Environmental Agency (UBA) requirements of
plastic articles in contact with drinking water (KTW-BWGL-guideline), the
compliance is verified by comparing so-called “expected concentrations at tap”, C tap ,
of substances contained in the plastics with specific limits in drinking water...
2021 Amsterdam : PVC Pipes TRAINING PACKAGE: 2020 UPDATE!
Author(s) : Sylvie Famelart, Vincent. Stone
In order to deliver to the market reliable and consistent information about PVC and the
different PVC pipe solutions, a Training Package was developed a few years ago. The
package was made up of a set of standalone PowerPoint slides, providing information
on PVC-U and PVC-C pipe systems. Information on both general...
2021 Amsterdam : PVC PIPES WITH SUPERIOR ROOT INTRUSION RESISTANCE
Author(s) : Argnani Claudio, Ing. Gianpaolo Contarini
...Clogging of the pipes can be experienced in sewer systems after a short period of
service, due to the intrusion of roots from plants and trees. Plants, and in particular
their roots, are attracted by the water flowing inside the pipes. These roots will strain
the connections between pipes, in particular the sockets...
2021 Amsterdam : PVC-O DN800: EFFICIENT TRANSFORMATION FROM SOIL TO IRRIGATED LAND
Author(s) : Ignacio Muñoz
“Food is the new oil and gas” is a rather bold statement, but everyday more and more
people are concerned about food scarcity. Bringing irrigation to not productive lands will
change the lives of the community and if it can be done with a cost effective and the
most ecofriendly solution, even better.
This case study...
2021 Amsterdam : RECENT DEVELOPMENTS IN INTEGRAL JOINT RESTRAINTS
Author(s) : Guido Quesada
An important breakthrough for belled PVC pipe was made around 2006, when the
first versions an integral joint restraint were released, after about two years in
development. This type of restraint comprises a casing, usually made of metal such
as ductile iron or stainless steel, a rubber seal, and a “C” grip ring,...
2021 Amsterdam : SLOW CRACK GROWTH RESISTANCE OF REPROCESSED PVC
Author(s) : Andreas Frank, Mario Messiha, Günter Dreiling, Norbert Schuler, Jens-Martin Storheil, Erwin Mayrbäurl, Stuart Ramella, Frank Krause, Rudi Berning, Philippe Gabriëls, Alpay Aydemir, Thomas Koch, Florian Arbeiter, Gerald Pinter
The Cyclic Cracked Round Bar (CRB) Test has been applied to study the slow crack growth
(SCG) resistance of virgin, recycled, and reprocessed PVC-U. This fracture mechanical test allows a
quick ranking of the SCG resistance of PVC-U. A clear correlation between the K-value and the SCG
resistance has been elaborated....
2021 Amsterdam : TESTING AND EVALUATION OF NANOADDITIVES IN U-PVC PIPES
Author(s) : E. Boccaleri, L. Palin, G. Rombolà, M. Milanesio
In the last decades, research on nanostructured materials as additives for plastics
involved several polymeric matrices, but only limited studies and publications
involve PVC. In this work, the context of rigid application of PVC (U-PVC) for pipes
application was targeted, in order to test and evaluate the structural...
2018 Las-Vegas : A recent survey of water main failures in the US and Canada
Author(s) : Steven Folkman
A recent survey again confirms that PVC pipe has the lowest break rate when compared with break rates of ductile and cast iron, asbestos cement, steel, and concrete pipe. Other results of interest to water utilities and engineers are discussed.
During 2017, Utah State University conducted a survey of utilities across...
2018 Las-Vegas : Biomimetic design concepts for the pipe architecture of tomorrow
Author(s) : Gerald Pinter, Florian Arbeiter, Johannes Wiener, Andreas Frank, Otmar Kolednik
In order to further increase the fracture toughness of pipes, biomimetic layer design of the pipe wall can be used. Therein, soft polymer interlayers can act as crack-arresters in a matrix of stiffer and inherently more brittle polymers. The effectiveness of the crack arresting role of soft interlayers in a...
2018 Las-Vegas : C-PVC-O, pushing limits beyond in molecular orientation
Author(s) : Ignacio Muñoz
During the last years PVC-O has become a popular product in pipe business due to the huge improvements of mechanical properties of PVC after orientation. At the same time, CPVC has become an important choice for hot water conduits in in-house applications. Molecor has started a research program to evaluate the...
2018 Las-Vegas : Considerations when restraining molecularly oriented PVC pipe
Author(s) : G.M. Quesada, K.H. Steinbruck
The benefits of molecularly oriented PVC pipe (PVC-O) are well known and documented. Numerous studies covering improved pipe impact, toughness, hydraulics, and life cycle have been published. There is less information about PVC-O pipe under pipeline hydraulic forces. The objective of this paper is to identify design...
2018 Las-Vegas : Effect of carbon black distribution on polyethylene pipes
Author(s) : Suleyman Deveci, Nisha Preschilla, Birkan Eryigit
Pipes with inhomogeneous CB distribution showed 80% less elongation than pipes with homogenously distributed CB. Polymer domains with less or no CB (windows) showed delamination from the polymer matrix as the material elongated, finally leading to fracture much earlier than expected.
In this study, we investigated the...