Design Guide for Improved Quality of Roadway Subgrades and Subbases

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dc.contributor.author White, David
dc.contributor.author Schaefer, Vernon
dc.contributor.author Ceylan, Halil
dc.contributor.author White, David
dc.contributor.author Ceylan, Halil
dc.contributor.author Stevens, Larry
dc.contributor.department Institute for Transportation
dc.date 2018-02-14T21:02:49.000
dc.date.accessioned 2020-06-30T04:51:12Z
dc.date.available 2020-06-30T04:51:12Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2008
dc.date.embargo 2014-10-01
dc.date.issued 2008-09-01
dc.description.abstract <p>The performance of a pavement depends on the quality of its subgrade and subbase layers; these foundational layers play a key role in mitigating the effects of climate and the stresses generated by traffic. Therefore, building a stable subgrade and a properly drained subbase is vital for constructing an effective and long lasting pavement system.</p> <p>This manual has been developed to help Iowa highway engineers improve the design, construction, and testing of a pavement system’s subgrade and subbase layers, thereby extending pavement life. The manual synthesizes current and previous research conducted in Iowa and other states into a practical geotechnical design guide (proposed as Chapter 6 of the SUDAS Design Manual) and construction specifications (proposed as Section 2010 of the SUDAS Standard Specifications) for subgrades and subbases.</p> <p>Topics covered include the important characteristics of Iowa soils, the key parameters and field properties of optimum foundations, embankment construction, geotechnical treatments, drainage systems, and field testing tools, among others.</p>
dc.description.comments <p>CTRE Project 04-186</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/intrans_reports/46/
dc.identifier.articleid 1051
dc.identifier.contextkey 6194395
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath intrans_reports/46
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/44885
dc.language.iso en
dc.relation.ispartofseries IHRB Project TR-525
dc.source.bitstream archive/lib.dr.iastate.edu/intrans_reports/46/2008_CeylanH_DesignGuideImproved.pdf|||Sat Jan 15 00:22:16 UTC 2022
dc.subject.disciplines Civil and Environmental Engineering
dc.subject.keywords drainage systems
dc.subject.keywords embankments
dc.subject.keywords pavement foundation layers
dc.subject.keywords geotechnical treatments
dc.subject.keywords subbases
dc.subject.keywords subgrades
dc.title Design Guide for Improved Quality of Roadway Subgrades and Subbases
dc.type article
dc.type.genre report
dspace.entity.type Publication
relation.isAuthorOfPublication cef57bd6-542c-4c8b-9d18-b327bf3befc2
relation.isAuthorOfPublication 3cb73d77-de43-4880-939a-063f9cc6bdff
relation.isOrgUnitOfPublication 0cffd73a-b46d-4816-85f3-0f6ab7d2beb8
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