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Filtering by: Creator Schindler, Jason A. Remove constraint Creator: Schindler, Jason A. Advisor Isgor, O. Burkan Remove constraint Advisor: Isgor, O. Burkan

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  • The Pozzolanic Reactivity Test and the Properties of Portland Limestone Cement

    Creator:
    Choudhary, Antara
    Abstract:
    The pozzolanic reactivity test (PRT) is used to quantify the pozzolanic reactivity of supplementary cementitious materials (SCMs). The PRT computes reactivity by measuring heat release (Q) and calcium hydroxide (CH) consumption, as interpreted using thermodynamic modeling. The robustness of PRT is examined by experimentally varying CH-to-SCM ratio, solution-to-solid ratio, sulfate...
    Resource Type:
    Dissertation
    Full Text:
    approved: ______________________________________________________ W. Jason Weiss

  • Assessing durability of reinforced concrete and ductile iron

    Creator:
    Shields, Silas A.
    Abstract:
    The first goal of this master’s thesis was to investigate the linkage between a non-destructive testing method, surface resistivity, and premature concrete deterioration brought on by chloride ingress and or freeze-thaw cycling. The experimental method for this project consists of taking surface resistivity measurements of reinforced concrete slabs after they...
    Resource Type:
    Masters Thesis
    Full Text:
    . Burkan Isgor Jason H. Ideker The first goal of this master’s thesis was to investigate the

  • Evaluation of the Effect of Chloride Ingress and Freeze-Thaw Cycles on Electrical Resistivity of Reinforced Concrete

    Creator:
    Rodriguez Matiz, David Esteban
    Abstract:
    Performing bridge inspections can be a very daunting task for every department of transportation (DOT) in the country. Because the leading cause of deterioration in reinforced concrete bridge decks is corrosion of the steel reinforcement, the ability to detect the concentration of corrosion-causing chlorides in the concrete, using a non-destructive...
    Resource Type:
    Masters Thesis
    Full Text:
    : ________________________________________________________________________ Jason H. Ideker O. Burkan Isgor Performing bridge inspections can be a very

  • Chloride Binding of Portland Limestone Cement containing Supplementary Cementitious Materials

    Creator:
    Then, Nathalene WY
    Abstract:
    Chloride binding in Portland limestone cements (PLC) can be attributed to the chemical reaction between chloride ions and carboaluminate phases to form Friedel’s salt and the physical interaction between chloride ions and calcium-silicate-hydrates (C-S-H). This thesis examines the chloride binding of mortar samples containing varying amounts of limestone, fly ash,...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: ________________________________ ___________________________ W. Jason Weiss

  • Equilibrium and Non-equilibrium Thermodynamic Modeling of Cement Pastes Containing Supplementary Cementitious Materials

    Creator:
    Glosser, Deborah B.
    Abstract:
    Thermodynamic modeling of cementitious material is an established tool for predicting the hydrated phase assemblages, pore solution pH, and pore solution composition of mixtures of various chemical compositions and water-to-binder (w/b) ratios. However, traditional thermodynamic techniques have major limitations for modeling mixtures containing supplementary cementitious materials (SCM), and when modeling...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ O. Burkan Isgor W. Jason Weiss Thermodynamic modeling of cementitious material is an

  • Reactivity Testing of Waterglass and the Investigation into an Alternative Binder Enhanced with Cellulose Nanocrystals

    Creator:
    McAlexander, Melissa
    Abstract:
    Most of the concrete in the world is produced using hydraulic cement (ordinary portland cement, OPC) and siliceous or alumino-siliceous supplementary cementitious materials (SCM). Due to the shift in focus toward environmental sustainability within the construction industry, alkali-activated cementitious systems (AAC) have gained significant attention to reduce the carbon footprint...
    Resource Type:
    Masters Thesis
    Full Text:
    Cellulose Nanocrystals. Abstract approved: O. Burkan Isgor W. Jason Weiss

  • 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:
    : _____________________________________________________ W. Jason Weiss O. Burkan Isgor A vital aspect of concrete construction is quality

  • Towards the Development of Performance-Based Concrete Mixtures Made with Modern Cementitious Materials Using Thermodynamic Modeling

    Creator:
    Bharadwaj Ravi, Keshav
    Abstract:
    This thesis builds on a modeling tool that has been developed to link thermodynamic modeling and concrete performance. This tool is intended to predict the performance for modern concrete mixtures made with ordinary portland cement (OPC), conventional and novel supplementary cementitious materials (SCMs), and limestone (Ls). The first part of...
    Resource Type:
    Dissertation
    Full Text:
    Materials Using Thermodynamic Modeling Abstract approved: W. Jason Weiss O. Burkan Isgor

  • Assessment and Service Life Prediction of Microbial Induced Corrosion of Concrete (MICC)

    Creator:
    Sahan, Feyza N.
    Abstract:
    Microbial-induced corrosion of concrete (MICC) is a multi-stage deterioration process caused by microbial activity in wastewater infrastructure. MICC is a worldwide issue due to the reduced service life of the wastewater infrastructure and the economic impact associated with increased maintenance and reconstruction costs. This thesis explores two critical aspect of...
    Resource Type:
    Masters Thesis
    Full Text:
    ) Abstract approved: O. Burkan Isgor W. Jason Weiss Microbial-induced corrosion of

  • Investigation of x-ray computed tomography for Portland cement phase quantification

    Creator:
    Deboodt, Tyler J.
    Abstract:
    Cementitious materials are often characterized through the use of advanced analytical techniques to understand the macro-, micro-, and nano-scale properties, including phase formation during hydration, and subsequent potential deterioration mechanisms which can affect service life. A major limitation with using such analytical techniques to quantify solid phases in cementitious systems...
    Resource Type:
    Dissertation
    Full Text:
    support truly made me a better researcher and writer. Jason, thank you for going on a limb and taking a