Download or read book Structural Tests on Large Diameter Polyetheylene Culvert Pipe written by R. W. Culley and published by . This book was released on 1982 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Updated Test and Design Methods for Thermoplastic Drainage Pipe written by Timothy J. McGrath and published by Transportation Research Board. This book was released on 2009 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains the findings of research performed to develop a recommended load and resistance factor design (LRFD) specification for thermoplastic pipe used in culverts and drainage systems for highway structures. The report details the research performed and includes a recommended LRFD design specification, a quality assurance specification for manufactured thermoplastic pipe, and the results of supporting analyses.

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.

Download or read book Structural Analysis and Design written by and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Durability Strength and Analysis of Culverts and Tunneling Machines written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1986 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Industrial Polyethylene and Technology written by Mark A. Spalding and published by John Wiley & Sons. This book was released on 2017-10-26 with total page 1671 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides an exhaustive description of polyethylene. The 50+ chapters are written by some of the most experienced and prominent authors in the field, providing a truly unique view of polyethylene. The book starts with a historical discussion on how low density polyethylene was discovered and how it provided unique opportunities in the early days. New catalysts are presented and show how they created an expansion in available products including linear low density polyethylene, high density polyethylene, copolymers, and polyethylene produced from metallocene catalysts. With these different catalysts systems a wide range of structures are possible with an equally wide range of physical properties. Numerous types of additives are presented that include additives for the protection of the resin from the environment and processing, fillers, processing aids, anti-fogging agents, pigments, and flame retardants. Common processing methods including extrusion, blown film, cast film, injection molding, and thermoforming are presented along with some of the more specialized processing techniques such as rotational molding, fiber processing, pipe extrusion, reactive extrusion, wire and cable, and foaming processes. The business of polyethylene including markets, world capacity, and future prospects are detailed. This handbook provides the most current and complete technology assessments and business practices for polyethylene resins.

Download or read book Recommended LRFD Specifications for Plastic Pipe and Culverts written by Timothy J. McGrath and published by Transportation Research Board. This book was released on 2000 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geotechnical abstracts written by and published by . This book was released on 1988 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transit Pricing and Performance written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1986 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transportation Research Record written by and published by . This book was released on 1997 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment and Rehabilitation of Existing Culverts written by David C. Wyant and published by Transportation Research Board. This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooerative Highway Research Program (NCHRP) Synthesis 303: Assessment and Rehabilitation of Existing Culverts summarizes the state of the practice of pipe assessment, the selection of appropriate repair or rehabilitation methods, and the management aspects of a pipe program.

Download or read book Conduits Culverts and Pipes written by United States. Army. Corps of Engineers and published by . This book was released on 1969 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standard Specifications for Highway and Structure Construction written by Wisconsin. Department of Transportation and published by . This book was released on 2008 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geodex Structural Information Service written by Geodex International and published by . This book was released on 1984 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proof Testing of a Structural Plate Pipe with Varying Bedding and Backfill Parameters written by Raymond E. Davis and published by . This book was released on 1985 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Developments in Rural Road Design in Australia written by Christopher J. Hoban and published by . This book was released on 1986 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federally Coordinated Program of Highway Research and Development written by United States. Federal Highway Administration and published by . This book was released on with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: