Field Performance of High Density Polyethylene Culvert Pipe

Gassman, Sarah L.; Schroeder, Ashley; Ray, Richard P.

doi:10.1061/(asce)0733-947x(2005)131:2(160)

Cited by 15 publications

(10 citation statements)

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“…The U.S. Federal Highway Administration (FHWA) regulations state that as of December 2006, equal consideration must be given to the use of alternative pipe materials such as plastic and corrugated aluminum as long as they are judged to be satisfactory based on both engineering and economic analyses (FHWA 2006). Therefore, the use of thermoplastic pipes for highway applications has begun to increase (Gassman et al 2005). Thermoplastic pipes, however, are still relatively recent replacements for steel and concrete in many civil engineering projects (Sargand et al 2002) and as with any new material, civil engineers must be convinced that the structural and long-term performance of thermoplastic pipes will be satisfactory in critical highway applications (Gassman et al 2005, Sargand et al 2002.…”

Section: Introductionmentioning

confidence: 99%

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Cover Requirements for Corrugated HDPE and PVC Pipes Used for Cross-drains in Highway Construction

Kang¹,

Davidson²,

Lim³

et al. 2013

Journal of the Korean Society for Advanced Composite Structures

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Abstract:This project investigated the use of two types of thermoplastic pipes, High-Density Polyethylene (HDPE) and Poly-vinyl Chloride (PVC), as cross-drains under highways. Pipes ranging from 0.3 m (12 in.) to 1.5 m (60 in.) in diameter were evaluated under deep fills, minimum cover, and construction equipment loads.In addition to a comprehensive literature review, an analytical study into the allowable fill heights for thermoplastic pipes was conducted. Based on the study findings, recommendations regarding how and when thermoplastic pipe should be installed are provided.

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Section: Introductionmentioning

confidence: 99%

“…It is therefore important to quantify cover requirements for thermoplastic pipes by characterizing the performance of both the thermoplastic pipes themselves and soil-pipe interaction (Gassman et al 2005). …”

Section: Introductionmentioning

confidence: 99%

Cover Requirements for Corrugated HDPE and PVC Pipes Used for Cross-drains in Highway Construction

Kang¹,

Davidson²,

Lim³

et al. 2013

Journal of the Korean Society for Advanced Composite Structures

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“…There is limited literature on the performance of buried pipes under the combined conditions of soil consolidation and creep of pipe material. Many studies have been performed on the design of thermoplastic pipes (Gassman et al, 2005;Sargand et al, 2005). However, there is limited information on the long-term performance of corrugated HDPE pipes, despite the ample literature available on the material properties (Kang, 2009).…”

Section: Previous Studiesmentioning

confidence: 99%

“…The pipe and soil form a system where each type of material reacts with the other material's response. Loading on the pipe begins immediately after installation (Gassman et al, 2005).…”

Section: Surrounding Soilmentioning

confidence: 99%

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Time-Dependent Performance of Buried Pipes in a Consolidating Soil Medium

Sesack¹

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Buried pipes are used for several applications, including water conveyance, highway drainage, and the transport of sewage. Throughout the years, it has become increasingly popular to use pipes made of thermoplastic materials due to ease of fabrication, resistance to chemical corrosion, light weight, and low cost. The objective of this research was to investigate the deformations of buried double-corrugated high-density polyethylene (HDPE) and solid-wall polyvinylchloride (PVC) pipes surrounded by a consolidating soil medium. The finite element method was used to calculate the pipe deflections throughout a time period of fifty years. Combined influence of creep and soil consolidation was considered in the analyses, and the results from these analyses were then compared to the deformations of pipes only influenced by the creep of the pipe material. Variables of this study included pipe diameter, height of backfill, pipe backfill material, construction methods, trench-widths, and boundary conditions. Results show that approximately 90% of pipe deformations occurred during the first year of installation for both the creep analyses and the combined creep and consolidation analyses. However, throughout the first year, the pipe influenced by both the creep and consolidation condition deformed at a much slower rate. Pipes influenced only by the creep condition showed a slightly higher deformation than pipes influenced by both creep and consolidation. This may be due to the instantaneous loading of the pipe, when there is no consolidation. When a pipe is surrounded by a consolidating soil medium, the load on the pipe changes as the pore pressure dissipates as a function of time. Results from the analyses of the combined influence of creep and consolidation are not significantly different from those results obtained from the analyses of creep only behavior of buried HDPE and PVC pipes under the self-weight of soil. iii ACKNOWLEDGEMENTS I would like to take this opportunity to thank the people who have played a vital role in the completion of this thesis. Firstly, I would like to thank my advisor and committee chairperson, Dr. Hema Siriwardane. He has offered his guidance and support throughout the duration of this project. I would also like to thank Dr. Udaya Halabe and Dr. John Quaranta for participating in my exam committee and reviewing my thesis. I gratefully acknowledge the West Virginia Department of Transportation, Division of Highways for the Research assistantship provided through a project to West Virginia University. I would like to express my deep appreciate to my family and friends for their support and love. iv TABLE OF CONTENTS

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Effects of Ultraviolet Radiation on Recycled and Virgin HDPE Corrugated Pipes Used in Road Drainage Systems

et al. 2022

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High-density polyethylene (HDPE) pipe is one of the materials of interest for use in road drainage systems.The combination of ultraviolet (UV) light, temperature, and moisture can produce weak spots and lead to pipe degradation during the storage, installation, and repair process. The objective of this study was to evaluate changes in the chemical, morphological structure, and thermomechanical properties of recycled and virgin pipes under UV exposure. Laboratory accelerated aging tests were conducted by exposing pipes to UV for 3600 hours with an irradiance of 0.89 W/(m 2 nm) at a wavelength of 340 nm. A cycle of 12 hours -comprised of 8 hours of UV radiation at 60°C and 4 hours of no UV radiation at 50°C corresponding to no water condensation-was performed to condition the specimens. HDPE specimens were taken out after 3600 hours and analyzed with FTIR (Fourier-transform infrared spectroscopy), SEM (scanning electron microscopy), DSC (differential scanning calorimetry), oxidative-induction time (OIT) measurements, and tensile tests. The results show that the recycled pipes maintained good properties and were not signi cantly affected by UV radiation, similarly to the virgin pipes. Statistical analysis using one-way analysis of variance (ANOVA) shows that there was no signi cant difference between tensile strength, elastic modulus, and hardness measurements before and after UV exposure. There were only a few small changes in the surface of the pipes. The addition of carbon black, antioxidants, and UV stabilizers prevented further aging of the pipes during UV exposure.

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Field Performance of High Density Polyethylene Culvert Pipe

Cited by 15 publications

References 1 publication

Cover Requirements for Corrugated HDPE and PVC Pipes Used for Cross-drains in Highway Construction

Cover Requirements for Corrugated HDPE and PVC Pipes Used for Cross-drains in Highway Construction

Time-Dependent Performance of Buried Pipes in a Consolidating Soil Medium

Effects of Ultraviolet Radiation on Recycled and Virgin HDPE Corrugated Pipes Used in Road Drainage Systems

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