A Feasibility Investigation of Glass Pozzolans in Marine Concrete
2018
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A Feasibility Investigation of Glass Pozzolans in Marine Concrete
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2018
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Marine concrete can be especially susceptible to chemical and physical deterioration, including corrosion of the reinforcement steel. For this reason, pozzolans such as fly ash, blast furnace slag, and silica fume, are commonly used to reduce corrosion in concrete subjected to marine environments by decreasing the permeability of the concrete matrix. The permeability of a concrete matrix is commonly used to indicate the susceptibility of a concrete to the corrosion of the steel reinforcement due to its effects on initial corrosion and subsequent corrosion. The water/cementitious materials (w/cm) ratio, binder type, curing conditions, and compaction factors can impact the level of permeability. A lower w/cm ratio can reduce the permeability, as does the addition of pozzolans. Ground glass is currently under intense scrutiny for its potential as a pozzolan in portland cement concrete, as it differs from other pozzolans due to its high alkali content. This research considers the potential for ground glass use as a pozzolan in marine concrete applications by investigating concrete mixtures with partial ground glass replacement. In order to determine whether ground glass reduces the permeability and therefore, chloride ion penetration, in marine concrete, a measurement of the electrical resistivity will be conducted.
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University Honors Capstone Project Paper, University of Minnesota Duluth, 2018. Advisor: Dr. Mary Christiansen. In partial fulfillment of the requirements for University Honors Program graduation with Honors.
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Murr, Ashley. (2018). A Feasibility Investigation of Glass Pozzolans in Marine Concrete. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/197848.
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