Index Catalog // ScholarsArchive@OSU

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:: approaching a crossroads, where advancements in material testing and modelling may potentially satisfy the

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

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

Investigation into the role of strength and toughness in composite materials with an angled incident crack

Creator:: Grimm, Brian A.
Abstract:: Understanding the mechanical behavior of composite materials requires extensive knowledge of fracture behavior as a crack approaches an interface between the bulk material and the reinforcement structure. Overall material toughness can be greatly influenced by the propensity of an impinging crack to propagate directly through the substrate or deflect along...
Resource Type:: Masters Thesis
Full Text:: knowledge of fracture behavior as a crack approaches an interface between the bulk material and the

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:: several possible theories were proposed by researchers, discrepancies in testing methods, materials, and

Proof of Concept for a Three-Dimensional Molded Core Wood-Strand Sandwich Panel

Creator:: Way, Daniel
Abstract:: Sandwich composites are typically produced from two high strength facings bonded to a lower strength, lightweight core. Sandwich design has proven to be efficient for applications demanding high strength and low weight. Wood-based sandwich composites have been largely limited to non-structural applications with the exception of structural insulated panels and...
Resource Type:: Masters Thesis
Full Text:: materials don’t necessarily foster building material efficiency, both in expense and material utilization

Evaluation of the torsion test as a method to determine the shear strength of structural composite lumber

Creator:: Siller, Tobias Stefan
Abstract:: Torsion test was evaluated as a method to determine the shear strength parallel to grain of full-size structural composite lumber (SCL). Experimental results of eighty-five rectangular (44 x 140 mm²) specimens were verified by finite element analysis. Laminated strand lumber (LSL), laminated veneer lumber (LVL) and parallel strand lumber (PSL)...
Resource Type:: Masters Thesis
Full Text:: The author would like to thank Trus Joist - A Weyerhaeuser Company for providing the test material

Use of Virtual Visual Sensors in the Determination of Natural Frequencies of Timber Structures for Structural Health Monitoring

Creator:: Walker, Kristopher
Abstract:: Many nondestructive techniques for structural health monitoring are subjective and based on visual observations of degradation. In addition, dynamic properties of structures are already used to obtain quantitative structural health data. However, most current data collection is limited to localized damage on the structure, rather than global response. Recent research...
Resource Type:: Masters Thesis
Full Text:: durability issues specific to the organic nature of the material that make the inspection and health

Assessing the Impacts of Size, Structure, and Surface Chemistry on the Toxicity of Two High Production Organic Nanomaterials using the Embryonic Zebrafish Model

Creator:: Meredith, Ailcea N.
Abstract:: The low risk and sustainable implementation of nanotechnology requires understanding how nanomaterial physicochemical properties influence their toxicity. Major drivers of toxicity need to be avoided while maximizing product efficacy so nanomaterials can be produced to best serve their applications and be of low risk when intentionally or unintentionally released into...
Resource Type:: Masters Thesis
Full Text:: response of the entrapped λ-Cy. Testing across other encapsulated products is needed to determine if size

Non-destructive determination of yield stress for in-situ gusset plates

Creator:: Pflaum, Therese Michelle
Abstract:: Failure of a gusset plate that caused the I-35W Bridge collapse in Minneapolis, MN resulted in mandated rating of connections by the Federal Highway Administration (FHWA). Rating connections requires material properties as an input. The material properties are generally reported on the available detailed drawings for bridges. However, some bridges...
Resource Type:: Masters Thesis
Full Text:: ........................................................................................... 38 3.3 Material Testing

ScholarsArchive@OSU

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

Alkali-silica reaction in concrete containing recycled concrete aggregates

Wood materials and shearwalls of older light-frame residential structures

Investigation into the role of strength and toughness in composite materials with an angled incident crack

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

Proof of Concept for a Three-Dimensional Molded Core Wood-Strand Sandwich Panel

Evaluation of the torsion test as a method to determine the shear strength of structural composite lumber

Use of Virtual Visual Sensors in the Determination of Natural Frequencies of Timber Structures for Structural Health Monitoring

Assessing the Impacts of Size, Structure, and Surface Chemistry on the Toxicity of Two High Production Organic Nanomaterials using the Embryonic Zebrafish Model

Non-destructive determination of yield stress for in-situ gusset plates

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