Development of New Corrosion/abrasion Guidelines for Selection of Culvert Pipe Materials PDF Download
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Author: Albert Molinas
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 74
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Book Description
A new service life chart for steel pipes was developed based on the information collected from the field observations and data analysis. Pipe failure criteria were established in accordance with the ongoing culvert evaluation procedure along I-70 and I-25. For the steel pipe failure cases along I-70 and I-25, the previously published service life predictors for steel pipes deviated from observations by as much as 10 times.
Author: Albert Molinas
Publisher:
ISBN:
Category : Drainage
Languages : en
Pages : 74
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Book Description
A new service life chart for steel pipes was developed based on the information collected from the field observations and data analysis. Pipe failure criteria were established in accordance with the ongoing culvert evaluation procedure along I-70 and I-25. For the steel pipe failure cases along I-70 and I-25, the previously published service life predictors for steel pipes deviated from observations by as much as 10 times.
Author: National Research Council (U.S.). Transportation Research Board
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 52
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Book Description
"This synthesis will be of a special interest and usefulness to design and materials engineers and others seeking information on corrosion and abrasion of drainage pipe. Durability guidelines are presented to permit selection of appropriate pipe materials for given design conditions."--Avant-propos.
Author: Michael L. J. Maher
Publisher:
ISBN: 9780309308595
Category : Road construction contracts
Languages : en
Pages : 148
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Report 801: Proposed Practice for Alternative Bidding of Highway Drainage Systems explores the application of a performance-based process for selection of drainage pipe systems. The selection process is based on satisfying performance criteria for the drainage system while considering the full range of suitable pipe materials." -- Publisher's description.
Author: Damian Beben
Publisher: Springer Nature
ISBN: 3030347885
Category : Technology & Engineering
Languages : en
Pages : 224
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Book Description
The primary objective of this book is to provide designers with a set of analysis and design specifications for soil-steel bridges and culverts, also called flexible structures. Brief but informative, this guide is based on a quick look up approach to code applications, design and analysis methods/calculations as well as applications and solved examples. The book addresses the unique aspects of soil-steel bridges: design and analysis as well as examples of applications, numerical analysis and modeling techniques, corrosion and durability problems, service life and maintenance, and impact of moving loads.
Author:
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 194
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Book Description
NTL Engineering & Geoscience was requested to conduct a statewide research project and provide information and recommendations to assist the Montana Department of Transportation (MDT) with design of metal culverts. Under current sampling, testing, and analysis methods, MDT has experienced numerous failures within the design life of metal culverts. NTL has identified some factors they believe to be a part of the discrepancy between design and in service pipe life. This report provides details of their research project, and provides recommendations based on data and analysis. Selection criteria for buried metal culverts varies widely between state agencies and private consultants primarily since a standard methodology for identifying environments corrosive to metal culverts, assessing corrosion potential, and selecting materials that will perform in accordance with design criteria have not been clearly defined in standard engineering literature. Although fundamental to design, these tasks are often difficult to perform and are subject to debate and variation within the design community. Corrosivity is dependent upon many variables and the interaction of soil with metal is likewise complex and multi variant. Their research has focused on observed, in place culvert conditions and selective testing of soil samples from these locations. Resistivity and pH were selected as the main indicators of culvert corrosion for this research. Although resistivity is a standard measure of soil corrosivity, numerous methods of preparing soils and measuring soil resistivity are accepted in practice with data then applied in a fairly generic manner to a relatively standard scale for assessing soil corrosion potential. NTL has performed corrosivity analysis based on the current MDT procedures for resistivity testing and pH along with other published test methods to evaluate the current MDT testing and analysis methods for selected sites in the various Districts. Their research has attempted to begin the framework for a more consistent and applicable methodology for corrosion assessment for the MDT. They recommend, in this regard, that the AASHTO T288 Minimum Soil Resistivity test method be adopted as the basis for resistivity determination. It is further recommended that resistivity testing address the soil conditions expected to exist for backfill, foundation, and the adjacent drainageway as part of a culvert site investigation.
Author: Craig A. Ballinger
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 348
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Book Description
Author: TV. Edgar
Publisher:
ISBN:
Category : Corrosion
Languages : en
Pages : 11
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Book Description
The Wyoming Highway Department changed the criteria it was using to select corrosion protection levels for culvert pipe in 1981. A study was undertaken to compare the effect of these changes in selection criteria to corrosion developed on pipe in service. Twelve 35 to 40-year-old culvert pipes from four highway reconstruction sites were sampled to determine the maximum weight loss from the most corroded area of each pipe. In-situ and laboratory soil resistivities were determined in or adjacent to each pipe trench, along with soil pH and soluble salts including sulfates. Corrosive weight loss was shown to be related to the field resistivity but not to the other factors. This indicates that minimum resistivity and soil pH, the two most commonly used soil parameters for culvert pipe selection, may not be reliable corrosion predictors in practice.
Author: Michael L. J. Maher
Publisher:
ISBN: 9780309271745
Category : Culverts
Languages : en
Pages : 133
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Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 474: Service Life of Culverts explores the time during which a culvert is expected to provide a desired function with a specified level of maintenance established at the design or retrofit stage. This study is an update of NCHRP Synthesis 254: Service Life of Drainage Pipe (1998), which itself was an update of NCHRP Synthesis 50: Durability of Drainage Pipe (1978). Developments in plastic pipe, fiber-reinforced concrete pipe, polymeric-coated metal pipe, recycled materials, larger and more diverse structures, and sophisticated analytical soil-structure interaction modeling within the past 15 years led to the development of this report." --
Author: Deepak Varadarajan Bhattachar
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 478
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Book Description
Author: Lester H. Gabriel
Publisher: Transportation Research Board
ISBN: 9780309061117
Category : Culverts
Languages : en
Pages : 52
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Book Description
"The synthesis describes the current state of the practice regarding state transportation agency standards and strategies that determine and define the service life of drainage pipe. Information for the synthesis was collected by surveying state transportation agencies and by conducting a literature search."--Avant-propos.
