Index Catalog // ScholarsArchive@OSU

Chemical transformation of rice husk ash for sustainable, constructable, and durable binary cementitious system

Creator:: Prasittisopin, Lapyote
Abstract:: The production of cement and concrete results in the production of large amounts of CO₂ emissions which can have significant negative environmental impacts. Using supplementary cementing materials (SCMs) as a cement replacement is an effective solution to reduce these negative environmental impacts, as most SCMs are waste by-products from other...
Resource Type:: Dissertation
Full Text:: the other committee members, Dr. Chris A. Bell, Dr. Burkan O. Isgor, Dr. Lech Muszyński, and Dr

Evaluation of the Efficiency of Supplementary Cementitious Materials to Prevent Alkali-Silica Reaction in Concrete with Highly and Very Highly Reactive Aggregates

Creator:: Chopperla, Krishna Siva Teja
Abstract:: The most common test methods to evaluate alkali-silica reaction (ASR), the concrete prism test (CPT) and the accelerated mortar bar tests (AMBT), have limitations and are not entirely reliable in terms of predicting the performance of concrete with prevention measures under field conditions. In this study, the miniature concrete prism...
Resource Type:: Dissertation
Full Text:: world. I would also like to thank Dr. Burkan Isgor and Dr. W. Jason Weiss. Your passion towards

Density Functional Theory Study of the Reaction Mechanism of Chloride-induced Depassivation of α-Fe2O3

Creator:: Pang, Qin
Abstract:: Carbon steel, which contains mostly iron, has been widely used as reinforcement in reinforced concrete. In the alkaline environment in reinforced concrete, a thin iron oxide film, called the passive film, forms on the surface of the steel, which protects the surface from active corrosion. The exact atomic structure of...
Resource Type:: Dissertation
Full Text:: appreciation to Prof. O. Burkan Isgor. Thank you for your valuable suggestions, guidance, and support for my

Factors Influencing Conversion and Volume Stability in Calcium Aluminate Cement Systems

Creator:: Adams, Matthew P. (Matthew Peter)
Abstract:: There is renewed interest in North America for the use of calcium aluminate cement (CAC) in infrastructure repair. The interest is driven by the specialty properties that make CAC the ideal candidate for particular applications. These include rapid strength gain, even at temperatures approaching 0°C, the ability to customize fresh...
Resource Type:: Dissertation
Full Text:: collection for Chapters 2, 3, 4, and 5. Dr. O. Burkan Isgor, Dr. Tengfei Fu, Monica Morales, and Adal

Understanding And Improving The Activity Of Oxygen Evolution Reaction Catalysts In Alkaline And Chloride-Containing Electrolytes

Creator:: Adiga, Prajwal Prakash
Abstract:: Water electrolysis plays a pivotal role in achieving a green hydrogen economy by sourcing electricity from intermittent renewable sources. However, the efficiency of the electrolysis process is limited by the sluggish oxygen evolution reaction (OER) kinetics, whereas the kinetics of the hydrogen evolution reaction (HER) are more facile. This thesis...
Resource Type:: Dissertation
Full Text:: , Dr. Chih Hung Chang, and Dr. Burkan Isgor for supporting me through this journey of working towards

Corrosion Resistance of Alloys in Direct-Fired Supercritical CO₂ Power Cycle Aqueous Environments

Creator:: Repukaiti, Reyixiati
Abstract:: Using supercritical CO₂ (sCO₂) as a working fluid has increasingly gained attention in the energy industry. sCO₂ power cycles has various advantages, such as high cycle efficiency, compact turbomachinery, and potential zero CO₂ emission. Along with these benefits, materials degradation issues have also been emphasized in the last decade. Aqueous...
Resource Type:: Dissertation
Full Text:: time to teach and mentor me. I’d also like to extend my gratitude to Dr. Burkan Isgor for mentoring

Influence of Concrete and Construction Parameters on Chloride Test Measurements and Critical Chloride Threshold Limits

Creator:: Vaddey, Naga Pavan
Abstract:: The issue of chloride-induced corrosion of reinforcing steel in concrete and its economic impacts are well-known. Chlorides that cause reinforcement corrosion can be from constituent materials used to prepare concrete or can enter the hardened concrete when the structure is exposed to chloride environments. To minimize the risk of reinforcement...
Resource Type:: Dissertation
Full Text:: Professor Burkan O. Isgor, Professor Jason H. Ideker, Dr. Ean H. Ng, and Dr. Sharmodeep Bhattacharyya

Development of a Reliability-Based Framework and Empirical Models for Justifying Allowable Chloride Limits and Quantifying Critical Input Variables for Predicting the Service Life of Reinforced Concrete Structures

Creator:: Shakouri Hassanabadi, Mahmoud
Abstract:: Significant progress has been made over the past 20 years in developing models to estimate the service-life of reinforced concrete systems. The basic understandings of the mechanisms that control the transport of ions and moisture in concrete systems have been well researched and models for determining corrosion initiation, specifically chloride-induced...
Resource Type:: Dissertation
Full Text:: to my committee members: Prof. Jason Weiss, Prof. Burkan Isgor, Prof. Paolo Gardoni, Prof. Roberto

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:: best to treat my students like how you treat us. I would also like to thank Dr. Burkan Isgor

An Active Interrogation Technique Based on Photofission for Non-destructive Assay of Used Nuclear Fuel

Creator:: Wen, Xianfei
Abstract:: High-energy delayed γ-rays from photofission were demonstrated to be signatures for detection and identification of special nuclear materials. Such γ-rays were measured in between linac pulses using independent data acquisition systems. A list-mode system was developed to measure low-energy delayed γ-rays after irradiation. Photofission product yields of ²³⁸U and ²³⁹Pu...
Resource Type:: Dissertation
Full Text:: want to express my gratitude to Dr. David Hamby, Dr. Abi Farsoni, Dr. Steven Reese, and Dr. Burkan

ScholarsArchive@OSU

Chemical transformation of rice husk ash for sustainable, constructable, and durable binary cementitious system

Evaluation of the Efficiency of Supplementary Cementitious Materials to Prevent Alkali-Silica Reaction in Concrete with Highly and Very Highly Reactive Aggregates

Density Functional Theory Study of the Reaction Mechanism of Chloride-induced Depassivation of α-Fe2O3

Factors Influencing Conversion and Volume Stability in Calcium Aluminate Cement Systems

Understanding And Improving The Activity Of Oxygen Evolution Reaction Catalysts In Alkaline And Chloride-Containing Electrolytes

Corrosion Resistance of Alloys in Direct-Fired Supercritical CO₂ Power Cycle Aqueous Environments

Influence of Concrete and Construction Parameters on Chloride Test Measurements and Critical Chloride Threshold Limits

Development of a Reliability-Based Framework and Empirical Models for Justifying Allowable Chloride Limits and Quantifying Critical Input Variables for Predicting the Service Life of Reinforced Concrete Structures

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

An Active Interrogation Technique Based on Photofission for Non-destructive Assay of Used Nuclear Fuel

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