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Filtering by: Subject Building materials -- Moisture Remove constraint Subject: Building materials -- Moisture Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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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:
    through local building departments and sampled for test material. The oldest structure was built in

  • 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

  • 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:
    durability requirements. Concrete falls into a specific category of infrastructure material because in most

  • 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:
    Material 22 III. MIX DESIGN 40 3.1 Purpose 40 3.2 Aggregates 40 3.3 Procedures 50 3.4 Results 68 3.5

  • 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:
    VISCOELASTIC MATERIAL RESPONSE 5 2.2 VISCOELASTIC TESTS 5 2.3 DYNAMIC MECHANICAL ANALYSIS TEST 6 2.3.1 Dynamic

  • 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:
    Material 65 4.7 CONCLUSIONS 66 4.8 REFERENCES 67 5 Evaluation of the Moisture Sensitivity of Open Graded

  • Development of a standard accelerated weathering test for aggregates using dimethyl sulfoxide (DMSO)

    Creator:
    Szymoniak, Tom
    Abstract:
    Some basaltic rocks common in Oregon when incorporated into a pavement structure as the base course aggregate or in the surfacing layer degrade and disintegrate owing to the minerals contained within the rock and the environment in which it is placed. To simulate the chemical degradation of basaltic rocks an...
    Resource Type:
    Masters Thesis

  • 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

  • Alkali-silica reaction in concrete containing recycled concrete aggregates

    Creator:
    Adams, Matthew P.
    Abstract:
    Using recycled concrete aggregate (RCA) as a replacement for natural aggregate in new concrete is a promising way to increase the overall sustainability of new concrete. This has been hindered, however, by a general perception that RCA is a sub-standard material due to the lack of technical guidance, specifically related...
    Resource Type:
    Masters Thesis
    Full Text:
    been hindered, however, by a general perception that RCA is a sub-standard material due to the lack

  • A Comprehensive Mechanistic Study on Using Fine Lightweight Aggregate to Mitigate Alkali-silica Reaction

    Creator:
    Li, Chang
    Abstract:
    Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
    Resource Type:
    Dissertation
    Full Text:
    (%) ............................................ 32 Table 3.2. Material properties of the investigated FLWAs