Sudheer, Pimputkar, Michael, Mamoun
Posters - Additional Information # 2001 Munich
A new plastic piping material to augment and complement polyethylene (PE) (and newer materials such as Polyamide 11 and cross-linked PE) and extend the use of plastics to highpressure distribution piping is being developed. The scope of work consists of identification and laboratory testing of candidate materials, and scale-up to commercial availability. The creation of new materials by systematically modifying existing materials is relatively new as a technological practice. It has been made possible by using computational techniques to relate microstructure to macroscopic properties. By linking to databases containing information on the chemical structure of compounds and other databases on macroscopic engineering properties, properties can be related to structure and vice versa. Thus far, this work has resulted in the following accomplishments : (1) an ideal material has been defined, based on piping standards, materials in current use, commercially available materials, and the state of plastics technology, (2) commercial databases have been scanned for properties matching or close to the desirability criteria, and a list of candidate materials has been developed and (3) molecular characteristics indicative of macroscopic properties of interest have been identified.
Related papers
Author(s) : Daniel Currence, Michael Plumier
Over a ten-year period, the North American corrugated plastic pipe industry successfully demonstrated that post-consumer and post-industrial recycled materials could be responsibly incorporated into corrugated pipes used for drainage applications. Prior to this work, the material standards were established for ...
Author(s) : Florian Arbeiter, Tobias Schachinger, Stefanie Eichinger, Gisbert Rieß, Michael Stur, Michael Steiner, Florian Saliger
Plastic pipes are of outstanding importance for the distribution of potable and process waters, oil and gas, as well as for sewer and waste water disposal. However, plastic pipes are also used in many other technical areas. Especially in European countries with mountainous regions, such as Austria, Switzerland, Italy...
Author(s) : Michael O’Rourke
The response of HDPE pipe laterals to seismic hazards are investigated. The hazard considered is Permanent Ground Deformation, specifically nominally uniform ground strain, abrupt offset in the longitudinal direction and abrupt offset in the transverse direction.
Author(s) : John Kurdziel, Michael Pluimer
Corrugated HDPE pipes have been successfully used for decades for sewers, culverts and land drainage applications and are advantageous due to their durability and service life in a variety of installation conditions. Pipes used for highway and storm sewer applications typically require stricter material standards than...
Author(s) : Michael Pluimer, Richard Thomas
Over the past decade, there have been several key research projects to evaluate the performance of corrugated HDPE pipes manufactured with post-consumer and postindustrial recycled materials for highway and railroad drainage applications. Three of these projects were recently completed and published (NCHRP Project...
Author(s) : Jie Feng, Michael Petr, Jeff Wenzel, Mark Mirgon, Sam Crabtree, Alan Nakatani
Through tensile tests, simulated orientation, tribology, and finite element analysis, this study explored the effect of temperature, lubrication and applied hydraulic pressure in the PVC orientation process. It was demonstrated that tight control of these parameters is critical in a continuous PVC orientation process...
Author(s) : Michael Pluimer, Leslie McCarthy, Andrea Welker, Eric Musselman
A pilot study was conducted with the Southeastern Pennsylvania Transit Authority to evaluate the performance of corrugated HDPE pipes manufactured with post-consumer recycled materials in their railroad applications. Two corrugated HDPE pipes – one manufactured with 100% virgin materials and one manufactured with 49%...
Author(s) : Michael Pluimer, Rick Thomas
A new test method was developed to evaluate the stress crack resistance of HDPE materials containing recycled content. The method involves testing un-notched specimens in an elevated temperature bath under a specified stress. The new test method was published in March of 2016 as ASTM F3181, Standard Test Method for...
Author(s) : Dr. Ken Oliphant, Patrick Vibien, Dr. Michael Conrad, Sarah Chung
A new methodology has been developed to validate the performance of polyethylene piping materials in potable water applications. The methodology is based on several research programs which examined a standardized accelerated test methodology (ASTM F2263 Standard Test Method for Evaluating the Oxidative Resistance of...
Author(s) : Michael Pluimer
Corrugated HDPE pipes are an attractive product for culvert and drainage applications in the railroad industry due to their resistance to corrosion and abrasion, long service life, and flexibility. Currently, these pipes are required to be manufactured with 100% virgin materials. However, therail industryhas recently...
Author(s) : Martina Sandholzer, Michael Jerabek, Christophe Salles, Günter Dreiling
Due to the combination of climate change impact, resulting in many regions of the world having a heavier and unpredictable rainfall, together with increased urbanization, the possibility for lower natural infiltration of the water into the soil has created a real challenge for storm water management systems. Forecast...
Author(s) : Michael Pluimer
Corrugated high density polyethylene (HDPE) pipe has been used in various drainage applications in the United States for nearly 50 years. First developed in smaller diameters primarily for agricultural applications, the product quickly found its way into the highway industry as an edge drain to increase pavement...
Author(s) : Michael Pluimer
The service life of our nation’s infrastructure has become a topic of increasing focus 1n recent years. While above-ground infrastructure deterioration is readily apparent, the infrastructure beneath the surface can be much worse and yet is often ignored until it is too late. Since culverts and other buried structures...
Author(s) : Boros, Mamoun
In order to establish a Hydrostatic Design Basis (HDB) for PE materials according to ASTM D 2837, it is required to validate that the ductile/brittle transition is beyond 100,000 hours. This procedure uses elevated temperature hydrostatic stress testing to “validate” that the extrapolation of the ductile stress...
Author(s) : Maeger, Vanspeybroeck, Lamborn, Mamoun, Leevers, Oliphant
As polyethylene pressure pipes enter the global marketplace under an ever-wider range of operating conditions, there is increasing emphasis on their rapid crack propagation performance. It is important that both producers and end-users are able to rely on the robustness of the rapid crack propagation test results and...
Author(s) : Jarnecke, Mamoun
Magnetic detectable polyethylene (PE) pipe has been developed for the gas distribution system that has permanent detection for locating underground piping. Magnetic detectable PE pipe differs from normal PE pipe by the addition of magnetic particles in the PE resin, which are magnetized in a sinusoidal pattern during...
Author(s) : Grigory, O'Donoghue, Mamoun
Measurements of temperature, power input, and pressure of the molten PE at the pipe-coupling interface in 4-, 6-, and 8-inch (1 14-, 168- and 219-rnm)' electrofusion (EF) couplings were made using instrumented experiments during the fusion cycle. The high temperature properties of several medium and high density...
Author(s) : Mamoun, Grigory, Mallow, Bucza
In current practice. even relatively benign damage to plastic ipes can require the complete replacement of the damaged section. T is costly process can be performed more efficiently with a n in situ patch repair procedure that uses a newly synthesized repair material. This material has mechanical properties comparable...
Author(s) : Mamoun
A brief overview is presented on some important research programs on plastic pipes conducted within the last ten years. Several signif icant research results and their impact on manufacturers and users of plastic pipes are high1 ighted. Results of research and development (R&D) on material characterization, in-service...
Members of the Association
