Papers
Plastic Pipes Conference Association # 2016 Berlin
Luis Aguiar, Rafael Ortega, Robert J. Card
With the infrastructure aging and having to be extended beyond its useful life, the need for municipalities and governmental agencies to do more with less funding is even greater! As such, over the last several years, the use of HDPE for sliplining has increased in its use. Most recently, the use of HDPE for sliplining applications has become a viable alternative for large diameter and pressure pipe rehabilitation.
This presentation will discuss Miami-Dade’s ongoing experience in dealing with their aging infrastructure by using HDPE to slipline both large diameter lines and pressure pipes. The presentation will discuss the HDPE sliplining lessons learned in Miami-Dade and will also discuss some experiences in other regions of the USA. The experience discussed will include case studies involving 72-inch, 42-inch and 36-inch sliplining in both water and wastewater applications. The lessons learned will be highlighted.
A common element in each of the applications in Miami-Dade and in the other installations across the USA that will be discussed is that “Experience Matters”. The experience applies to all aspects of the installation – engineering, material and contractor’s installation.
HDPE is now used in specialized applications across the United States. Examples of this include horizontal directional drilling (HDD) and sliplining existing water and wastewater pipes. Miami-Dade Water and Sewer Department (WADS) has utilized HDPE in these applications. Following is a discussion on one such recent use of large diameter HDPE pipe.
Related papers
Author(s) : Carlos Domínguez, Álvaro Pérez, Nuria Robledo, Cristina González, Beatriz Paredes, Rafael A. García-Muñoz
Last methodologies for fast evaluation of the SCG resistance on polyethylene pipe materials are analyzed in this work and compared with traditional PENT and FNCT tests. Strain Hardening (SH), Crack Round Bar (CRB) and Accelerated Creep Test (ACT) will be good alternatives for evaluating PE100RC resins. Moreover, SH...
Author(s) : Robert Lawrence, Mohana Murali
The paper covers the growth of the polyethylene pipe sector in the Middle East from the 90s to the present. The initial slow uptake was related to ignorance of the material properties from the end users through to designers and installers. Recently the Middle East has become a world leader in the use of ever larger...
Author(s) : Robert LeHunt
Nationally moderated and approved competency training Units and Qualifications have been established in Australia for plastics pipes within an overall Plastics Industry Training Package. Delivery of such Units over a 21 year period has contributed to a greater understanding of various plastics pipes materials,...
Author(s) : Carlos Domínguez, Nuria Robledo, Rafael A. García-Muñoz
With the last advances and improvements in the polyethylene resins used for pipe application, new methods for evaluating long-term mechanical properties need to be introduced. Standard PENT and FNCT tests needs more than one year for characterizing the new PE100RC grades with the consequent thermal ageing problems....
Author(s) : Thomas C. Pedersen, Robert R. Kwapisz
This paper presents rheological data on simple rigid PVC compositions lubricated paraffin wax, calcium stearate, and oxidized polyethylene wax. These three materials comprise the most widely used lubricant system for rigid PVC in North America. The influence of certain paraffin wax characteristics will be discussed....
Author(s) : Carlos Domínguez, Nuria Robledo, Rafael A. García
Slow Crack Growth (SCG) is the most critical failure mechanism in high density polyethylene used in pipe applications to determine the long-term performance of the resin. The most common methods for evaluating the SCG resistance are the Pennsylvania Edge Notched Tensile (PENT), Full Notch Creep Test (FNCT) and the...
Author(s) : Robert Eckert
New types of saddle fittings enable convenient and economic ways of installing branches or vents on PE pipes. In conjunction with a gate valve, branches can even be installed without disrupting service, by "hot tapping" the main pipe. In addition, pipes with localized damage such as excessively deep scratches or...
Author(s) : Robert J Lawrence
In the Middle East the environment is exceptionally aggressive for all pipe systems due to the high temperatures, the high groundwater table and the very saline soils. This obviously makes metallic pipes and cement based pipes high risk options but it also poses challenges for polyolefin (PO). In this paper the...
Author(s) : Eckert Robert
A New Generation of Electrofusion : A technical comparison between the new wedge coupler and the traditional cylindrical coupler for PE pipes d1000 (40”) and above. FRIATEC has developed a totally new concept of electrofusion jointing method for large bore PE pipes, d1000 mm (40”) and above. The new method completely...
Author(s) : Robert Torbin
The home building industry has been focused on keeping the price of new housing “affordable” to the majority of American consumers. This market mantra has, to some degree, affected the quality of new construction. In the area of piping technology, there has been a notable movement away from metallic piping systems to...
Members of the Association
