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  • Test method to determine the degree of asphalt stripping from aggregates

    Creator:
    Boudreau, Richard L.
    Abstract:
    Moisture damage has long been recognized as one of the most critical factors influencing the performance of asphalt concrete (AC) pavements. This moistureinduced damage occurs from either the physical separation of the asphalt film from the aggregate or the softening of the asphalt binder within the AC mixture in the...
    Resource Type:
    Masters Thesis
    Full Text:
    durability of an asphalt concrete (AC) pavement depends to a great degree on the adhesion between the

  • Development of a test procedure for water sensitivity of asphalt concrete mixtures

    Creator:
    Al-Swailmi, Saleh H.
    Abstract:
    Environmental factors such as temperature, air, and water can have a profound effect on the durability of asphalt concrete mixtures. In mild climates where good quality aggregates and asphalt cement are available, the major contribution to deterioration may be due to traffic loading and the resultant distress is manifested in...
    Resource Type:
    Dissertation
    Full Text:
    influencing the water sensitivity of asphalt concrete mixtures; and (2) development of laboratory testing

  • The effect of mixing moisture, oxidative aging and tire pressures on the performance of asphalt mixes

    Creator:
    Kim, Ok-kee
    Abstract:
    The research undertaken consisted of the study of three topics affecting the performance of asphalt concrete mixtures, that is, mixing moisture, oxidative aging and higher tire pressures and axle loads. This thesis presents the findings of the research comprising these three topics. In the first study, the effects of mixing...
    Resource Type:
    Dissertation
    Full Text:
    on Asphalt Concrete Pavement Damage." These studies were conducted by the Oregon State Highway

  • Evaluation of polymer modified asphalt in hot mix pavements

    Creator:
    Ifft, Charles
    Abstract:
    Polymer modified asphalts have recently been the focus of much attention in the U.S. due to claims that polymer additives will lengthen the life of an asphalt pavement. Much of the published research on this topic has been concentrated on the effects of polymer modifiers on binder and mixture properties....
    Resource Type:
    Masters Thesis
    Full Text:
    attention in the U.S. due to claims that polymer additives will lengthen the life of an asphalt pavement

  • 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:
    applicable for dynamic testing of asphalt (Brodnyan, 1958; Dickinson and Witt, 1974) and asphalt concrete

  • Evaluation of water damage on asphalt concrete mixtures using the environmental conditioning system

    Creator:
    Al-Joaib, Ali Abdulla
    Abstract:
    Asphalt concrete pavement is subjected to several damaging actions from traffic loads, water (from precipitation and/or groundwater sources), and temperature. The durability of the asphalt-aggregate mixture, its ability to withstand these damaging actions for long periods, is a very important engineering property. While the durability of the asphalt-aggregates mixture depends...
    Resource Type:
    Dissertation
    Full Text:
    : Dr. Ronald L. Terrel Asphalt concrete pavement is subjected to several damaging actions from traffic

  • 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

  • Evaluation of cold in-place recycling of asphalt conrete pavements in Oregon

    Creator:
    Scholz, Todd
    Abstract:
    Significant use of cold in-place recycling (CIR) has occurred in Oregon since 1984 as an alternative to other rehabilitation techniques or to the reconstruction of distressed asphalt concrete (AC) pavements. Due to the initial success of the projects cold recycled during 1984-85, the Oregon Department of Transportation (ODOT) and Oregon...
    Resource Type:
    Masters Thesis
    Full Text:
    , since 1984, utilized pavement recycling techniques to rehabilitate distressed asphalt concrete (AC

  • 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:
    pavement sections due to volumetric contraction of the asphalt concrete mixture. A simple free-body

  • Permanent deformation characteristics of dense-graded mixes using asphalt pavement analyzer

    Creator:
    Sandoval-Gil, Jesus A.
    Abstract:
    The Asphalt Pavement Analyzer (APA) device was used to characterize the impact of various mix factors on the development of permanent deformation in dense-graded mixes given a standard compactive effort. Factors included two aggregate sizes, three VMA levels, two fines contents, three binder contents and four binder types. All specimens...
    Resource Type:
    Dissertation