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  • Wood materials and shearwalls of older light-frame residential structures

    Creator:
    Carroll, Cameron T.
    Abstract:
    Light-frame construction practices and materials have changed greatly over the past 100 years. Contemporary research has focused on modern construction; thus, we know a great deal about the behavior of modern lightframe buildings under lateral forces. However, there are many light-frame buildings that were built prior to the introduction of...
    Resource Type:
    Masters Thesis
    Full Text:
    average specific gravity of the wood materials was 0.46. The material extracted from the source

  • 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:
    comparison with the other treated materials. 3.2.2 Aggregates Processing and Gradation The material

  • 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:
    19 water-deposited materials exhibit relatively uniform grading. The material deposited by

  • A study on the oxidation of sulfides in estuarine waters

    Creator:
    Korpalski, Thomas Paul
    Abstract:
    Waters of various salinities were secured from the Umpqua estuary, the Umpqua River, and the open ocean near the mouth of the estuary. The rate of oxidation of sulfides in these various waters was investigated to assess the potential longevity of free sulfides in estuarine waters. The rate of disappearance...
    Resource Type:
    Masters Thesis
    Full Text:
    the National Science Foundation who provided funds for much of the research through their grant

  • 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 fabric reinforcement of the roadway structure

    Creator:
    Lavansiri, Direk
    Abstract:
    An evaluation of fabric reinforcement of the roadway structure is made. The study includes a parametric analy sis using layered elastic theory and a series of large scale model tests. The parametric. study analyzes the stresses and strains of roadway structures with a fabric layer between tna surface layer and...
    Resource Type:
    Dissertation
    Full Text:
    increments, handles nonlinear materials. Poisson's ratio is input as a constant for each material and the

  • Bond strength investigations and structural applicability of composite fiber-reinforced polymer (FRP) rebars

    Creator:
    Kachlakev, Damian I.
    Abstract:
    The composite FRP rebars research at Oregon State University was initiated in 1993 principally to develop a non-metallic hollow reinforcement. It was recognized that the tensile properties of such reinforcement are unquestionably superior to steel, but its performance in concrete could be problematic. The bond between FRP rebars and concrete...
    Resource Type:
    Dissertation
    Full Text:
    . Research Significance 147 5.3.3. Materials and Specimens Preparation 148 5.3.4. Test Procedure and Its

  • Hydrology studies applicable to Oregon

    Creator:
    Johnson, Arthur Fayette
    Resource Type:
    Masters Thesis
    Full Text:
    acknowledgement for material used, and for aid given, is due to Mr. Charles E. Stricklin, State Engineer# 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:
    material. 1.1 Problem Definition The major problems evolving from this lack of quality materials are 1

  • Measuring and Correcting the Electrical Resistivity of Concrete Pore Solution in Fresh Mixtures

    Creator:
    Biever, Joseph H.
    Abstract:
    A vital aspect of concrete construction is quality assurance and control (QA/QC). Engineered structures must meet pre-determined and agreed-upon strength and durability requirements. Concrete falls into a specific category of infrastructure material because in most cases, these strength and durability requirements cannot be found until the material has at least...
    Resource Type:
    Masters Thesis
    Full Text:
    year 1913 (1). Through years of research and development, concrete material has seen incremental