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Polyethylene Plastic Products Fire Performance Data Research High Density Polyethylene Hdpe Pipe
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Book Synopsis Polyethylene Plastic Products Fire Performance Data Research High Density Polyethylene (HDPE) Pipe by : John E. Philbin
Download or read book Polyethylene Plastic Products Fire Performance Data Research High Density Polyethylene (HDPE) Pipe written by John E. Philbin and published by . This book was released on 1993 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content by : Michael Pluimer
Download or read book Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content written by Michael Pluimer and published by . This book was released on 2018 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book HDPE Pipe written by Yick Grace Hsuan and published by Transportation Research Board. This book was released on 1999 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of High Density Polyethylene Pipe for Highway Applications by :
Download or read book Investigation of High Density Polyethylene Pipe for Highway Applications written by and published by . This book was released on 1996 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, culvert pipes were made only of corrugated metal or reinforced concrete. In recent years, several manufacturers have made pipe of lightweight plastic - for example, high density polyethylene (HDPE) - which is considered to be viscoelastic in its structural behavior. It appears that there are several highway applications in which HDPE pipe would be an economically favorable alternative. However, the newness of plastic pipe requires the evaluation of its performance, integrity, and durability; A review of the Iowa Department of Transportation Standard Specifications for Highway and Bridge Construction reveals limited information on the use of plastic pipe for state projects. The objective of this study was to review and evaluate the use of HDPE pipe in roadway applications. Structural performance, soil-structure interaction, and the sensitivity of the pipe to installation was investigated. Comprehensive computerized literature searches were undertaken to define the state of-the-art in the design and use of HDPE pipe in highway applications. A questionnaire was developed and sent to all Iowa county engineers to learn of their use of HDPE pipe. Responses indicated that the majority of county engineers were aware of the product but were not confident in its ability to perform as well as conventional materials. Counties currently using HDPE pipe in general only use it in driveway crossings. Originally, we intended to survey states as to their usage of HDPE pipe. However, a few weeks after initiation of the project, it was learned that the Tennessee DOT was in the process of making a similar survey of state DOT's. Results of the Tennessee survey of states have been obtained and included in this report. In an effort to develop more confidence in the pipe's performance parameters, this research included laboratory tests to determine the ring and flexural stiffness of HDPE pipe provided by various manufacturers. Parallel plate tests verified all specimens were in compliance with ASTM specifications. Flexural testing revealed that pipe profile had a significant effect on the longitudinal stiffness and that strength could not be accurately predicted on the basis of diameter alone. Realizing that the soil around a buried HDPE pipe contributes to the pipe stiffness, the research team completed a limited series of tests on buried 3 ft-diameter HDPE pipe. The tests simulated the effects of truck wheel loads above the pipe and were conducted with two feet of cover. These tests indicated that the type and quality of backfill significantly influences the performance of HDPE pipe. The tests revealed that the soil envelope does significantly affect the performance of HDPE pipe in situ, and after a certain point, no additional strength is realized by increasing the quality of the backfill.
Book Synopsis Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content by : Richard W. Thomas
Download or read book Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content written by Richard W. Thomas and published by Transportation Research Board. This book was released on 2011 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Download or read book Handbook of Polyethylene Pipe written by and published by Plastics Pipe Institute. This book was released on 2012-02 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the Plastics Pipe Institute (PPI), the Handbook describes how polyethylene piping systems continue to provide utilities with a cost-effective solution to rehabilitate the underground infrastructure. The book will assist in designing and installing PE piping systems that can protect utilities and other end users from corrosion, earthquake damage and water loss due to leaky and corroded pipes and joints.
Book Synopsis Performance Evaluation of Existing High-density Polyethylene Pipe by : Sarah L. Gassman
Download or read book Performance Evaluation of Existing High-density Polyethylene Pipe written by Sarah L. Gassman and published by . This book was released on 2000 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of High Density Polyethylene (HDPE) Pipe by : Anselem H. Rumpca
Download or read book Evaluation of High Density Polyethylene (HDPE) Pipe written by Anselem H. Rumpca and published by . This book was released on 1998 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Experimental Investigation of the Behavior of the Steel Reinforced High Density Polyethylene and Corrugated Metal Pipe by : Safa Sadat Masajedian
Download or read book Experimental Investigation of the Behavior of the Steel Reinforced High Density Polyethylene and Corrugated Metal Pipe written by Safa Sadat Masajedian and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Effect of High Density Polyethylene (HDPE) Pipe Profile Geometry on Its Structural Performance by : Nadim Ayche
Download or read book The Effect of High Density Polyethylene (HDPE) Pipe Profile Geometry on Its Structural Performance written by Nadim Ayche and published by . This book was released on 2005 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of High-density Polyethylene Pipe by : David B. Woodham
Download or read book Evaluation of High-density Polyethylene Pipe written by David B. Woodham and published by . This book was released on 1989 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six high-density polyethylene (HDPE) pipes were installed as rundowns in the Summer of 1985 on Interstate 70 west of Denver. The HDPE pipes were able to handle the corrosive and abrasive runoff and eliminated the need for heavy equipment during placement on the steep fill slopes. No problems were observed with the use of these pipes during four and one-half years of monitoring.
Book Synopsis Performace Comparison of High Desity Polyethylene Pipe (HDPE) in Municipal Water Applications by : Chandan Venkatesh
Download or read book Performace Comparison of High Desity Polyethylene Pipe (HDPE) in Municipal Water Applications written by Chandan Venkatesh and published by . This book was released on 2014 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current and forecasted major challenge faced by water utilities is delivering potable water efficiently with minimum loss to end users. Water pipe failure has negative impact not only local communities but also on the nation's economy. The American Water Works Association (AWWA) has estimated that it will cost over $250 billion to replace and renew the nation's water pipes over the next 20 years. According to the 2009 American Society of Civil Engineers (ASCE) Report Card, seven billion gallons of water are lost in this country every day! Every pipe has unique properties with advantages and limitations. During a pipe's life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. The very limited information on High Density Polyethylene (HDPE) pipes created the need for this research. This thesis is a preliminary step towards understanding the HDPE pipe performance for lower and larger pipe size diameters. To achieve the objectives of this research, a nationwide survey was carried out. For the respondent utilities, the average annual failure rate for the smaller diameter pipe is 0.5 per 100 miles. Most frequent causes of failures occurring in small diameter pipes were due to joint failure. Due to lack of enough large diameter HDPE pipe respondents, the results were not conclusive.
Book Synopsis Long Term Performance of Corrugated HDPE Pipes Produced with Post-consumer Recycled Materials Under Constant Deflection by : Ehab T. Shaheen
Download or read book Long Term Performance of Corrugated HDPE Pipes Produced with Post-consumer Recycled Materials Under Constant Deflection written by Ehab T. Shaheen and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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%.
Book Synopsis Long-term Performance of Buried High Density Polyethylene Plastic Piping by : Cyril Gazagnaire
Download or read book Long-term Performance of Buried High Density Polyethylene Plastic Piping written by Cyril Gazagnaire and published by . This book was released on 2000 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Durability and Reliability of HDPE Pipe for Large Diameter Water Transmission Applications by : Divyashree
Download or read book An Investigation of Durability and Reliability of HDPE Pipe for Large Diameter Water Transmission Applications written by Divyashree and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drinking water infrastructure in the North America requires a durable and reliable water transmission pipe material. Thus, it is important to study pipe performance, so that water utilities can benefit from cost-effective and efficient pipe installations and longer design life. All pipe materials deteriorate overtime and every pipe has unique properties with advantages and limitations. During a pipe's life cycle, failures occur due to numerous factors such as age, loading conditions, environmental conditions, installation quality, manufacturing procedures, operation and maintenance strategies and so on. This research focuses on reliability and durability of large diameter (16 in. and larger) high density polyethylene (HDPE) pipe and specifically its fatigue performance under cyclic loading, since limited information is available on resistance of this pipe under transient pressures. To conduct this research, in addition to a comprehensive literature search, a national survey of water utilities in the North America was performed. Additionally a testing concept was developed to determine the performance of a HDPE pipe sample with recurring surges for two million cycles. This specimen was subjected to a pressure of 1.5 times Pressure Class (PC) for a 16-in., 15-ft long, DR 17, 4710 HDPE pipe with a fused joint in the middle. The results of this investigation showed that at this time, few water utilities use large diameter HDPE pipe. Those that use large diameter HDPE, majority are satisfied with the pipe performance; however, they had some concerns regarding joints and fittings as described in this thesis. Also, some utilities did not differentiate between 4710 HDPE pipe tested in this research, and older products such as 3408 and 3608. The results of testing showed that the pipe sample described above was able to withstand the 2 M cyclic loadings between 125 psi and 188 psi (1.5 times its pressure class).
Book Synopsis Establishing a Design Procedure for Buried Steel-reinforced High-density Polyethylene Pipes by : Jie Han
Download or read book Establishing a Design Procedure for Buried Steel-reinforced High-density Polyethylene Pipes written by Jie Han and published by . This book was released on 2015 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two field tests were conducted to investigate the field performance of steel-reinforced high-density polyethylene (SRHDPE) pipes during installation and under traffic loading. One test site was located on E 1000 road in Lawrence, KS, which is close to Clinton Lake. Three SRHDPE pipes with a diameter of 3 ft and a length of 24 ft were buried in a 6 ft wide trench with 2 ft thick soil cover. This test site had two test sections: one section was filled with Aggregate Base Class 3 aggregate (AB3) and the second section was filled with crushed stone. The second field study was conducted at a Kansas Department of Transportation (KDOT) storage yard in Kansas City, KS. Four 6 ft long SRHDPE pipes with a diameter of 2 ft were connected and buried in a trench with a dimension of 4.6 ft wide × 27.5 ft long × 4.2 ft deep. Two types of backfill material were also used in the trench, namely, AB3 aggregate and crushed stone. Earth pressures, pipe deflections, and pipe strains on plastic valley, plastic cover, and steel ribs were monitored during pipe installation and under static loading on both test sites. The test results from the pipe installation and static loading showed that (1) the vertical arching factor (VAF) on the top of the pipe was approximately 1.1 and the lateral earth pressure coefficient was approximately 0.65; (2) the peaking deflection was observed in both field tests in a range of 0.25 to 1.80% (the peaking deflection in the AB3 section was greater than that in the crushed stone section); (3) the maximum strain of the pipe occurred on the plastic valley in the longitudinal direction at the pipe crown, which was in a range of 0.4-0.6% and much lower than the strain limit of 5% suggested by the American Association of State Highway and Transportation Officials (AASHTO, 2012); and (4) the Giroud and Han (2004) method and the AASHTO (2012) method could reasonably estimate the earth pressure on the pipe under static loading, while the Iowa Formula could estimate the pipe deflection during installation and caused by static loading. The earth pressures, the pipe deflections, and the strains of the pipes in the Lawrence site were monitored for 680 days and all increased with time. Two empirical correlations were proposed to calculate the VAF and the pipe stiffness factor at a given time. The AASHTO (2012) design methods for metal pipes and high-density polyethylene (HDPE) pipes were modified for SRHDPE pipes based on the laboratory and field test results. A design procedure for SRHDPE pipes is proposed and illustrated by a design example.
Book Synopsis Performance of High Density Polyethylene Pipe Under High Fill by : Daniel N. Adams
Download or read book Performance of High Density Polyethylene Pipe Under High Fill written by Daniel N. Adams and published by . This book was released on 1988 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
