Condition and Corrosion Survey on Corrugated Steel Storm Sever and Culvert Pipe PDF Download
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Author:
Publisher:
ISBN:
Category : Drainage pipes
Languages : en
Pages : 64
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Book Description
Author:
Publisher:
ISBN:
Category : Drainage pipes
Languages : en
Pages : 64
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Book Description
Author:
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 78
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Book Description
In 1986 the National Corrugated Steel Pipe Association undertook a five year program to gather service life information on 125 to 135 Corrugated Steel Pipe (CSP) installations. To facilitate this endeavor, Corrpro Companies, Incorporated was retained to develop a detailed program of inspection, testing and evaluation. The first report, published in 1987, reviewed data on 21 sites. This second report provides data on 32 additional sites. From an interior corrosion standpoint, site data indicate that typically, significant interior corrosion is limited to the invert of the pipe. This is generally a corrosion/erosion phenomena affected by bed loading, flow velocity and flow frequency as well as site chemistry. This study and others indicate that concerns for premature invert loss can be alleviated by paving the invert. This second report uses data from 18 sites which were not coated to address unprotected exterior galvanized coating life. It provides an initial means of (1) predicting the probable life of unprotected exterior galvanized coatings, and (2) estimating the current condition of the external galvanized coating on inservice pipes.
Author: Frank Blonska
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 64
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Book Description
Author: James B. Bushman
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 36
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Book Description
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: U. S. Department Transportation
Publisher: CreateSpace
ISBN: 9781508836681
Category :
Languages : en
Pages : 108
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Book Description
Durability of Culverts and Special Coatings is intended to provide up-to-date storm drain and culvert material selection methods and techniques to assist the highway engineer in designing culverts. While the program was to consider a variety of materials, the predominant focus was on Aluminized Type 2 corrugated steel pipe (CSP) and its performance versus galvanized CSP. This report is divided into two main sections-field investigation and literature review. The field investigation presents the results of a field evaluation of 32 pipes and their performance relative to that reported in FHWA-FLP-91-006, Durability of Special Coatings for Corrugated Steel Pipe. The present report also includes a review of previous research areas to evaluate conclusions and the utility of existing culvert life prediction methods. The literature review presents a discussion of the various factors affecting culvert durability and its prediction.
Author: United States. Bureau of Public Roads
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 40
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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.
Author: Bethlehem Steel Company
Publisher:
ISBN:
Category : Culverts
Languages : en
Pages : 94
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Book Description
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.
