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  • Early age performance of latex-modified concrete bridge deck overlays

    Creator:
    Sujjavanich, Suvimol
    Abstract:
    Environmental factors and physical properties of latex modified concrete (LMC) are hypothesized to contribute to early age cracking in bridge deck overlays. Cracking permits the ingress of moisture and aggressive solutions into the substrate and may contribute to other subsequent distresses. Understanding the material properties and mechanisms involved is necessary...
    Resource Type:
    Dissertation
    Full Text:
    Performance of Latex-Modified Concrete Bridge Deck Overlays. James R.Lundy Environmental factors and

  • Prediction of low temperature cracking of asphalt concrete mixtures with thermal stress restrained specimen test results

    Creator:
    Kanerva, Hannele K.
    Abstract:
    Low temperature cracking is attributed to tensile stresses induced in an asphalt concrete pavement that develop when the pavement is subjected to a cold temperature. Cracking results in poor ride quality and a reduction in service life of the pavement. Low temperature cracking has been predicted by regression equations, mechanistic...
    Resource Type:
    Dissertation
    Full Text:
    Prediction of low temperature cracking of asphalt concrete

  • Analysis of thermal fatigue distress of asphalt concrete pavements

    Creator:
    Jackson, N. Mike (Nathaniel Michael)
    Abstract:
    Thermal cracking of asphalt concrete pavements is responsible for millions of dollars in annual maintenance and rehabilitation costs in the United States and Canada. Thermal cracking is typically associated with low temperatures in northern climates and at high elevations. However, another form of thermal cracking, known as thermal fatigue cracking,...
    Resource Type:
    Dissertation
    Full Text:
    Pavements Abstract approved: Ted S. Vinson Thermal cracking of asphalt concrete pavements is responsible

  • Selection and performance evaluation of a test method to assess thermal cracking resistance of asphalt-aggregate mixtures

    Creator:
    Jung, Duhwoe
    Abstract:
    Thermal distress in asphalt concrete pavements is a widespread problem around the world. Thermal cracking can be divided into two modes of distress: low temperature cracking and thermal fatigue cracking. Low temperature cracking results from extremely cold temperatures; thermal fatigue cracking results from daily temperature cycles. Low temperature cracking is...
    Resource Type:
    Dissertation
    Full Text:
    evaluation to identify low temperature cracking resistance of asphalt concrete mixtures. The TSRST showed

  • A torsional investigation of a concrete I grider

    Creator:
    Martin, Roy Charles
    Abstract:
    This paper investigates a particular bridge construction technique which could result in a significant torsional moment. The structural member under consideration is a prestressed concrete girder for which no torsional consideration is made. Torsional shear stresses can be adequately approximated for an I-shaped girder. Laboratory model tests were performed to...
    Resource Type:
    Masters Thesis
    Full Text:
    torsion tests on prestressed concrete I-beam. In: Bridge deck design and loading studies. Highway Research

  • Analysis of conventionally reinforced concrete deck girder bridges for shear

    Creator:
    Potisuk, Tanarat
    Abstract:
    Large numbers of 1950's vintage conventionally reinforced concrete (CRC) bridges remain in-service in the national bridge inventory. Many of these bridges are lightly reinforced for shear. Evaluation of these bridges to prevent unnecessary and costly repairs requires refined analytical techniques. This dissertation presents finite element (FE) modeling and comparisons of...
    Resource Type:
    Dissertation
    Full Text:
    girders. Tests indicated that cracking of concrete had little effect on the global behavior of the bridge

  • Nonlinear finite element analysis of reinforced concrete structures strengthened with FRP laminates

    Creator:
    Chansawat, Kasidit
    Abstract:
    The Horsetail Creek (HC) bridge is an example of an Oregon bridge that was classified as structurally deficient and was not designed to withstand earthquake (EQ) excitations. A fiber-reinforced polymer (FRP) rehabilitation was performed on the HC bridge to increase flexural and shear capacities for traffic loads. However, a seismic...
    Resource Type:
    Dissertation

  • Evaluation of cathodic protection in reinforced concrete bridges

    Creator:
    Abooameri, Farid
    Abstract:
    Steel corrosion in reinforced concrete is a major concern to transportation agencies nationwide because of the expenses incurred for repair and ultimate shortening of bridge life. Cathodic protection (CP), as a remedy, has been applied to reinforced bridges in the US since 1974. However, application of this technique is largely...
    Resource Type:
    Masters Thesis
    Full Text:
    also cause concrete cracking. Thus there is an optimum applied potential. If the applied potential is