Long Term Performance of Corrugated HDPE Pipes Produced with Post-consumer Recycled Materials Under Constant Deflection PDF Download
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Author: Ehab T. Shaheen
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages :
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Book Description
In recent years, the incorporation of recycled material in the production of plastic pipes has gradually increased. With this new development, the federal government were considering the possibilities of allowing corrugated high-density polyethylene (HDPE) pipes manufactured with post-consumer recycled (PCR) materials installed as culverts under major highways, despite the fact that they may contain impurities and their long-term behavior is still not fully understood. This dissertation was part of the NCHRP Report 870 (Pluimer, 2018), which led to a new revision in AASHTO M-294. This new revision allows HDPE pipes to be manufactured with either virgin or recycled materials. This dissertation presents a test program recently completed at Ohio University, in which corrugated HDPE pipes with varied post-consumer recycled (PCR) material contents were subjected to a forced long-term constant vertical deflection of 20%.
Author: Ehab T. Shaheen
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages :
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Book Description
In recent years, the incorporation of recycled material in the production of plastic pipes has gradually increased. With this new development, the federal government were considering the possibilities of allowing corrugated high-density polyethylene (HDPE) pipes manufactured with post-consumer recycled (PCR) materials installed as culverts under major highways, despite the fact that they may contain impurities and their long-term behavior is still not fully understood. This dissertation was part of the NCHRP Report 870 (Pluimer, 2018), which led to a new revision in AASHTO M-294. This new revision allows HDPE pipes to be manufactured with either virgin or recycled materials. This dissertation presents a test program recently completed at Ohio University, in which corrugated HDPE pipes with varied post-consumer recycled (PCR) material contents were subjected to a forced long-term constant vertical deflection of 20%.
Author: Richard W. Thomas
Publisher: Transportation Research Board
ISBN: 0309213401
Category : Technology & Engineering
Languages : en
Pages : 141
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Book Description
TRB’s National Cooperative Highway Research Program (NCHRP) Report 696: Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content provides potential specifications for corrugated drainage pipe manufactured with recycled high-density polyethylene (HDPE).
Author: Michael Pluimer
Publisher:
ISBN: 9780309446778
Category : Drainage pipes
Languages : en
Pages : 82
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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Research Report 870: Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content explores the use of corrugated high density polyethylene (HDPE) pipe manufactured with recycled content and proposes guidelines for manufacturing these pipes to ensure they meet the service life requirements for the given application. This project expounded on the research published in NCHRP Report 696. The research consisted of manufacturing several large diameter corrugated HDPE pipes out of various blends of virgin and post-consumer recycled (PCR) materials commonly used in land drainage applications and evaluating these pipes in the field and laboratory to determine their service life in typical installed conditions. PCR materials were the focus of this project as they are more readily available and typically used in the corrugated HDPE pipe industry than post industrial recycled materials. However, the research is applicable to both types. -- cc. http://www.trb.org/main/blurbs/176741.aspx.
Author: Yick Grace Hsuan
Publisher: Transportation Research Board
ISBN: 9780309066075
Category : Science
Languages : en
Pages : 60
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Book Description
Author: Scott Walbridge
Publisher: Springer Nature
ISBN: 9811910049
Category : Technology & Engineering
Languages : en
Pages : 689
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Book Description
This book comprises the proceedings of the Annual Conference of the Canadian Society of Civil Engineering 2021. The contents of this volume focus on specialty conferences in construction, environmental, hydrotechnical, materials, structures, transportation engineering, etc. This volume will prove a valuable resource for those in academia and industry.
Author: Anselem H. Rumpca
Publisher:
ISBN:
Category : Pipe, Plastic
Languages : en
Pages : 90
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Book Description
This report presents the findings and recommendations on the evaluation of High Density Polyethylene (HDPE) Pipe resulting from a 1996 Transportation Enhancement/Hazard Elimination Project in Martin, South Dakota. This was the first project where HDPE pipe was allowed to be installed under a state highway in South Dakota. Department researchers installed instrumentation and conducted deflection testing on a 760 mm (30 in) HDPE pipe installed under US Highway 18 in Martin, South Dakota. A horizontal inclinometer probe was used to determine vertical heave or settlement. Surface profiles were monitored with a Dipstick® Floor Profiler. Thirteen separate sets of measurements were taken between August 1996 and June 1997. Costs were determined for installation and delivery of both HDPE pipes and reinforced concrete pipes (RCP). Neighboring states were surveyed to determine their costs for storm sewer pipes as well as specifications for installing HDPE pipes. Recommendations were made to allow the installation of HDPE pipe based on information received from the state survey, literature reviews, and the results of the Martin, South Dakota Project.
Author:
Publisher:
ISBN:
Category : Electronic book
Languages : en
Pages :
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Author: Michael Pluimer
Publisher:
ISBN:
Category : Corrugated
Languages : en
Pages : 11
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Book Description
ABSTRACT: The service life of our nation's infrastructure has become a topic of increasing focus in recent years. While above-ground infrastructure deterioration is readily apparent, the infrastructure beneath the surface can be much worse and yet is often largely ignored until it is too late. Since culverts and other buried structures typically are not inspected as frequently as above-ground structures such as bridges, the proper assessment and determination of their service life becomes very important. The design service life of corrugated high density polyethylene (HDPE) drainage pipe has been a subject of considerable research over the past several years. This paper presents a method for determination of long-term service life of corrugated HDPE pipe by utilizing some of the current widely accepted methods employed by the smooth-walled plastic pipe industry while modifying them somewhat to take into account the unique geometry and installation conditions of buried corrugated pipe. The resulting data when tested in accordance to this protocol indicate a service life in excess of 100 years.
Author: Safa Sadat Masajedian
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Steel reinforced high density polyethylene pipes are gaining popularity these days because of their good performance and advantages of them in comparison to the other pipe materials. By inverting the steel ribs vertically in to the HDPE materials, strength of steel and flexibility and light weight of HDPE materials have been combined. However due the limited study in this area, the failure modes and design parameters are not classified. This study investigates the behavior and failure modes of SR-HDPE pipes under the simulated soil load and compares the results with the data obtained from the test on corrugated metal pipe under the identical test scenario. Full-scale experimental tests were conducted with soil boxes in order to determine if the steel ribs in SR-HDPE act continuously throughout the pipe structure. Local and global deformations of the pipe were monitored with displacement transducers and strain gauges, respectively. Strain gauges were placed at two sections of the pipe. Each section contained six strain gauges at the crown, springline, and invert. Displacement transducers were installed in two sections along the pipe (middle and 12 in.(31 cm) from the end). Each section was capable of monitoring the vertical deflection and the horizontal deflection was measured at mid section. The load was applied through a hydraulic cylinder, and a rigid concrete slab. The data from these sensors were recorded and reported to identify the response of the pipes with regard to strength and serviceability. Three different pipe sizes (24 in. (61 cm), 36 in. (91 cm), and 48 in. (122 cm)) were tested in this situation and three different concrete slabs were cast whose dimensions were fixed by the pipe length which was 4 ft. (122 cm) and pipe and its width varied based on internal diameter. The results showed that the CMP pipe has higher stiffness and load carrying capacity. Also CMP exhibited more ductility before the failure. The governing failure mode of the SRHDPE pipe tested was lateral buckling of the ribs along the horizontal axis of the pipe at crown and springlines. This was due to the premature buckling of the HDPE material supporting the steel ribs, thus, causing discontinuous steel action. This study shows that the behavior of the SR-HDPE is different than the CMP pipe. By inspecting the pipe after reloading and removing from the soil box, three failure lines (crease) for 24 in. (61 cm) SR-HDPE and four failure lines for 36 in. (91 cm), and 48 in. (122 cm) SR-HDPE which is explained by the higher hoop capacity of the 24 in. (61 cm) SR-HDPE pipe in comparison with other pipe sizes. However CMP pipes exhibited a continuous hoop type buckling and smooth plastic hinge.
Author: Naila Webb
Publisher:
ISBN:
Category : Pipe, Plastic
Languages : en
Pages : 106
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Book Description
