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High Density Polyethylene Pipe In Highway Applications
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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 High Density Polyethylene Pipe in Highway Applications by : Brent Matthew Phares
Download or read book High Density Polyethylene Pipe in Highway Applications written by Brent Matthew Phares and published by . This book was released on 1996 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of High Density Polyethylene Pipe for Highway Applications by : Brett Eric Conard
Download or read book Investigation of High Density Polyethylene Pipe for Highway Applications written by Brett Eric Conard and published by . This book was released on 1997 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This knowledge base will allow the IDOT to revise current specifications for the use of high density polyethylene pipe for shallow fill conditions. Testing included laboratory tests to evaluate polyethylene pipe response at elevated temperatures and field tests on polyethylene pipes to determine the response of various soilstructure systems to surface live loads.
Book Synopsis Field Tests and Analyses of High Density Polyethylene Pipes for Highway Application by : Kam Weng Ng
Download or read book Field Tests and Analyses of High Density Polyethylene Pipes for Highway Application written by Kam Weng Ng and published by . This book was released on 1997 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The findings from the field tests in Phase I and this phase will provide data for improvement of Iowa DOT specifications for HDPE pipe and its backfill condition. Field studies of Phase I conducted on 36-in. (915-mm) diameter HDPE pipes from Manufacturer C with four backfills were used for an assessment of the influence of the soil envelope on pipes' performance in this thesis. Furthermore, full scale field tests were conducted in this phase on 36-in. (915-mm) pipe from Manufacturer A with four additional backfill materials. The testing program used in this phase is similar to Phase I.
Book Synopsis Investigation of Plastic Pipes for Highway Applications by : Robert A. Lohnes
Download or read book Investigation of Plastic Pipes for Highway Applications written by Robert A. Lohnes and published by . This book was released on 1997 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally accepted that high density polyethylene pipe (HDPE) performs well under live loads with shallow cover, provided the backfill is well compacted. Although industry standards require carefully compacted backfill, poor inspection and/or faulty construction may result in soils that provide inadequate restraint at the springlines of the pipes thereby causing failure. The objectives of this study were: 1) to experimentally define a lower limit of compaction under which the pipes perform satisfactorily, 2) to quantify the increase in soil support as compaction effort increases, 3) to evaluate pipe response for loads applied near the ends of the buried pipes, 4) to determine minimum depths of cover for a variety of pipes and soil conditions by analytically expanding the experimental results through the use of the finite element program CANDE.
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.
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:
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 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 Polyethylene Pipes for Use as Highway Culverts by : Thomas R. Hunt
Download or read book Polyethylene Pipes for Use as Highway Culverts written by Thomas R. Hunt and published by . This book was released on 1991 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first Colorado Department of Transportation (CDOT) installation of polyethylene pipes for culvert use was in 1988, on SH 50, north of Olathe. Five to ten feet of well compacted in-situ material was used as backfill. No obvious deflections occurred in the pipe during or after construction, or as a result of in-service live loads. After three years of service, the pipes have not cracked, melted, or worn, and are in good overall condition. One culvert, however, burned for about ten feet into one end as a result of the ignition of sawdust that had collected in it from a nearby sawmill. This section of pipe was replaced. A literature search found that with proper backfill, loads of 100 ft of fill could safely be supported. Some pipes, however, were reported to have deformed excessively even with small loads. These were for the most part 12 in. and 15 in. diameter pipes that had a thinner wall, and were not well supported. The main advantages of polyethylene pipes are: light weight, easier installation, corrosion resistance, and relatively good aesthetic qualities. Plastic pipe is a current option for use in the 1991 Colorado Standard Specifications. In most cases it will be left up to the contractor to determine which pipe material to use to meet the specifications for each particular project. Adequate wall thicknesses and corrugations should be specified. Only Class 1 or better material, compacted in thin lifts to 95% maximum density, should be used. Extra care should be taken to compact under the haunches. With care, fills of at least 50 ft are possible.
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.
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 Handbook of Polyethylene by : Andrew Peacock
Download or read book Handbook of Polyethylene written by Andrew Peacock and published by CRC Press. This book was released on 2000-01-20 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides the basic history, molecular structure and intrinsic properties, practical applications and future developments of polyethylene production and marketing - including recycling systems and metallocene technology. It describes commercial processing techniques used to convert raw polyethylene to finished products, emphasizing special
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 Applied Plastics Engineering Handbook by : Myer Kutz
Download or read book Applied Plastics Engineering Handbook written by Myer Kutz and published by William Andrew. This book was released on 2011-07-20 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical reference for all plastics engineers who are seeking to answer a question, solve a problem, reduce a cost, improve a design or fabrication process, or even venture into a new market. Applied Plastics Engineering Handbook covers both polymer basics – helpful to bring readers quickly up to speed if they are not familiar with a particular area of plastics processing – and recent developments – enabling practitioners to discover which options best fit their requirements. Each chapter is an authoritative source of practical advice for engineers, providing authoritative guidance from experts that will lead to cost savings and process improvements. Throughout the book, the focus is on the engineering aspects of producing and using plastics. The properties of plastics are explained along with techniques for testing, measuring, enhancing and analyzing them. Practical introductions to both core topics and new developments make this work equally valuable for newly qualified plastics engineers seeking the practical rules-of-thumb they don’t teach you in school, and experienced practitioners evaluating new technologies or getting up to speed on a new field The depth and detail of the coverage of new developments enables engineers and managers to gain knowledge of, and evaluate, new technologies and materials in key growth areas such as biomaterials and nanotechnology This highly practical handbook is set apart from other references in the field, being written by engineers for an audience of engineers and providing a wealth of real-world examples, best practice guidance and rules-of-thumb
Book Synopsis Plastic Pipe Use Under Highways by : David B. Woodham
Download or read book Plastic Pipe Use Under Highways written by David B. Woodham and published by . This book was released on 1988 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Guideline for Procurement of Products Containing Recovered Materials by : DIANE Publishing Company
Download or read book Comprehensive Guideline for Procurement of Products Containing Recovered Materials written by DIANE Publishing Company and published by DIANE Publishing. This book was released on 1996-03 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The EPA's proposal for a Comprehensive Procurement Guideline designating items that are or can be made with recovered materials. Covers: background (materials in solid wastes; benefits of recycling; requirements; criteria for selecting items for designation; and methodology for selecting items for designation); paper and paper products; vehicular products; construction products; transportation products; park and recreation products; landscaping products; non-paper office products and more. Tables.
