Field evaluation of timber preservation treatments for highway applications.

Bigelow, Jake J.; Clausen, Carol A.; Lebow, Stan T.; Greimann, Lowell

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Field evaluation of timber preservation treatments for highway applications.

2007-12-01
By Bigelow, Jake J. ; Clausen, Carol A. ; Lebow, Stan T.

File Language:

English

Details

Creators:

Bigelow, Jake J. ; Clausen, Carol A. ; Lebow, Stan T. ; Greimann, Lowell
Corporate Creators:

Iowa State University. Center for Transportation Research and Education
Corporate Contributors:

Iowa. Highway Research Board ; Iowa. Dept. of Transportation
Subject/TRT Terms:
Publication/ Report Number:

CTRE Project 06-252;IHRB Project TR-552
Resource Type:

Tech Report
Geographical Coverage:

Iowa
Edition:

Final report.
Corporate Publisher:

Iowa State University. Center for Transportation Research and Education
Abstract:

Timber material repair and replacement cost for timber bridges is a considerable expense to highway agencies in Iowa, especially to ; county road departments. To address these needs, the objectives of this investigation was to study the field effectiveness of various ; treatment alternatives used on Iowa roadway projects and to determine if the current specifications and testing are adequate for ; providing proper wood preservation. To satisfy the research needs, the project scope involved a literature review, identification of ; metrics, questionnaire survey of Iowa counties, onsite inspections, and a review of current specifications and testing procedures. Based ; on the preservative information obtained, the following general conclusions were made: Copper naphthenate is recommended as the ; plant-applied preservative treatment for timber bridges. Best Management Practices should be followed to ensure quality treatment of ; timber materials. Bridge maintenance programs need to be developed and implemented. The Iowa Department of Transportation ; specifications for preservative treatment are the regulating specification for bridges constructed with state or federal funding in Iowa ; and are also recommended for all other bridges.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/23883/dot_23883_DS1.pdf
File Type:

[PDF - 2.07 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:a56eaf26de4a97a85d16244efd1057e75a45af1fdb5fc0536250e49d85676f08b51df0aed2e52f50b518e86b166444b88be25db549192b4504d6957051aad2c5

File Language:

English

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