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  • Development of performance based test procedures for asphalt mixtures

    Creator:
    Kliewer, Julie E.
    Abstract:
    In 1987, Congress authorized a 5 year $150 million dollar research program called the Strategic Highway Research Program (SHRP). SHRP was divided into four major areas, including the asphalt research program. The asphalt research program was divided into six major research contracts, one such contract, SHRP-003A was called Performance Related...
    Resource Type:
    Dissertation
    Full Text:
    , SHRP-003A was called Performance Related Testing and Measuring of Asphalt Aggregate Interaction and

  • Development of the simplified method to evaluate dynamic mechanical analysis data on asphalt-aggregate mixtures

    Creator:
    Ab-Wahab, Yunus Bin
    Abstract:
    Testing of asphalt binders and asphalt-aggregate mixtures using dynamic mechanical analysis is becoming popular with improvements in high-speed computers, precision equipment, and computer software. Researchers are trying to describe the behavior of asphalt binders and asphalt-aggregate mixtures in terms of their time- and temperature-dependent linear viscoelastic behavior. The objectives of...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Dr. Chris A. Bell Testing of asphalt binders and asphalt-aggregate mixtures using

  • An evaluation of coastal Oregon's marginal aggregates

    Creator:
    Clemmons, Gregory H.
    Abstract:
    Coastal Oregon is deficient in quality construction aggregates. There is, however, an abundance of lower quality, or marginal, aggregate available for construction purposes. An evaluation of these marginal aggregates is the purpose of this paper. There are four classes of marginal rocks found on the Oregon Coast. Basalts, high in...
    Resource Type:
    Masters Thesis
    Full Text:
    susceptible to chemical weathering, offer the most likely source of material to the Central and Northern

  • Evaluation of selected marginal aggregates stabilized with cement

    Creator:
    Chang, Chen
    Abstract:
    Coastal Oregon is deficient in quality construction aggregate. There is, however, an abundance of lower quality, or marginal aggregate available for construction purposes. The purpose of this report is to develop techniques for upgrading marginal aggregates with portland cement and methods for evaluating the relative performance of these stabilized materials...
    Resource Type:
    Masters Thesis
    Full Text:
    success (6, 42). A limited amount of testing on this material has been performed by Huddleston and

  • Properties of marginal aggregates treated with asphalt emulsion

    Creator:
    Evans, Gary L.
    Abstract:
    The purpose of this report is to address the problem of supplying construction aggregates to Oregon's coastal areas that are currently, or will in the near future, be deficient of good quality materials. This is done primarily by studying methods of utilizing marginal aggregates that are abundantly available in the...
    Resource Type:
    Masters Thesis
    Full Text:
    materials will provide satisfactory road building material and is practiced regular- ly in many parts of

  • Shrinkage and strength of steam cured Haydite masonry unit concrete mixes

    Creator:
    Peyton, Harold Ray
    Resource Type:
    Masters Thesis
    Full Text:
    MASONRY UNIT CONCRETE MIXES INTRODUCTION HAYDITE: Haydite i a cellular, light-weight material produced

  • Evaluation of the torsion test for determining the shear strength of structural lumber

    Creator:
    Heck, Leanne Renee
    Abstract:
    The torsion test was evaluated as a method for determining the shear strength of full-size structural lumber. The evaluation involved an experimental length study, an experimental depth study, and a finite element study. The length study consisted of fifty nominal 2x4 specimens, ten specimens for each length, and ten American...
    Resource Type:
    Masters Thesis
    Full Text:
    Testing and Materials (ASTM) shear blocks. One 14 foot long board yielded one specimen for each length

  • Dynamic response of steel structures with semirigid connections

    Creator:
    Grant, Joseph Edward
    Abstract:
    The nonlinear response of a ten-story steel structure with semirigid girder connections is studied under conditions of dynamic loading. The dynamic loading used in this study is the North-South component of the May 18, 1940 El Centro, California earthquake. To deal with the complexity of the problem the structure is...
    Resource Type:
    Dissertation
    Full Text:
    . TESTING OF THE COMPUTER PROGRAM 29 IV. RESULTS 35 Design of the Building Used in the Investigation 35

  • Effectiveness of special washers as anchorage of prestressing wire

    Creator:
    Horstkotte, Daniel Kenneth
    Resource Type:
    Masters Thesis
    Full Text:
    INThODUCTION Theor;r of Prestressed Concrete: Concrete is a very satisfactory building material in

  • Deflections of simply supported plywood plate under uniform loading by finite-difference equations

    Creator:
    Aijala, Timo Kalervo
    Abstract:
    This paper offers a practical solution of the complicated equations for the deflections of nonorthotropic plates; in this discussion plywood plates made of Douglas fir are considered. The intricate partial differential equations are expressed in terms of finite differences. The simultaneous algebraic linear equations thus obtained are easily solved. The...
    Resource Type:
    Masters Thesis
    Full Text:
    -deflection curves for uni- formly loaded plates 63 22 Stresses on an element of anisotropic material 70