Development of High-Pressure Plastic Materials for Gas Distribution Pipeline Systems [PE]

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...