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Filtering by: Committee Member Isgor, Burkan Remove constraint Committee Member: Isgor, Burkan Decade 2010-2019 Remove constraint Decade: 2010-2019 Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

Creator:

Wilson, Cameron A.

Abstract:

High early strength (HES) concrete is becoming increasingly used to repair damaged concrete pavement sections. The use of HES concrete enables the repaired pavement to be opened to traffic within hours of placing the concrete. A common approach used for the rapid repair of concrete pavement consists of closing a...

Resource Type:

Masters Thesis
Critical Assessment of Chloride States and Quantities in Ordinary Portland and Specialty Cements

Creator:

Ahmed, Ahmed Abdulhaq

Abstract:

The constituent materials of concrete often contain chlorides. The presence of chlorides in sufficient amounts can disrupt the passive layer, also known as the passive film, that protects the reinforcing steel in concrete. This disruption can lead to premature corrosion of the reinforcing steel in concrete. To minimize the risk...

Resource Type:

Dissertation
A Comparison of Formation Factor to Standard Methods to Evaluate Transport Properties

Creator:

Whatley, Samantha N.

Abstract:

Chloride-induced corrosion is one of the primary causes of the degradation of reinforced steel in concrete structures. Currently, the rapid chloride permeability test (RCPT) is the most specified method to determine the concrete’s resistivity to chloride ingress, thus a determining factor in assessing the durability of concrete. While it is...

Resource Type:

Masters Thesis
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
Toward a mixture design methodology for internally cured concrete that considers filling specific pore sizes caused by self-desiccation

Creator:

Montanari, Luca

Abstract:

Internal curing is a term used to describe a process in which curing water is provided to a concrete mixture from inside the mixture. Internal curing water has typically been provided in North America mixtures by using prewetted porous materials, like fine lightweight aggregate (FLWA). Alternative materials, such as superabsorbent...

Resource Type:

Masters Thesis
High Strength Reinforcing Bars : Concrete Shear Friction Interface Behavior

Creator:

Nielson, Drew R.

Abstract:

Use of high-strength steel (HSS) reinforcing bars could provide constructability and economic benefits for the construction of structures, reducing the initial and ultimately the life-cycle cost of bridge and building structural elements. This thesis summarizes work performed in a research project on the use of HSS reinforcing bars for concrete...

Resource Type:

Masters Thesis
Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Creator:

Vavra, Eric

Abstract:

Structurally efficient and cost-effective solutions are needed to extend the service-life of deficient and aging highway infrastructure around the world. One critical need is to increase the flexural strength of older reinforced concrete (RC) structures to carry heavier and more frequent loads. Titanium alloy bars (TiAB) offer a new opportunity...

Resource Type:

Masters Thesis
Seismic Performance of Aging Prestressed Transmission Pole with Simulated Soil Foundation

Creator:

Argo, Maximo

Abstract:

The Cascadia Subduction Zone has recently been identified as a source for an impending great earthquake. The potential of a large earthquake has created widespread interest into the resiliency of lifelines within the potentially affected areas. One critical lifeline is the electrical distribution and transmission systems which relies on legacy...

Resource Type:

Masters Thesis
Shear strengthening reinforced concrete bridge girders using near-surface mounted titanium alloy bars

Creator:

Knudtsen, Jonathan

Abstract:

Aging and deficient infrastructure has become a major problem throughout the world. This is particularly evident in the case of reinforced concrete (RC) bridges. The cost of replacing these bridges is often prohibitive, thus engineers must find ways to strengthen them. Many older RC bridges predate the modern understanding of...

Resource Type:

Masters Thesis
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

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Academic Affiliation

Civil and Construction Engineering15
School of Civil and Construction Engineering1

Advisor

Trejo, David7
Higgins, Christopher C.4
Ideker, Jason3
Barbosa, Andre R.2
Ideker, Jason H.1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2013 to 2019

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Committee Member

Isgor, Burkan[remove]16
Ideker, Jason4
Albertani, Roberto2
Belart, Francisca2
Muszynski, Lech2
more Committee Members »

Creator

Ahmed, Ahmed Abdulhaq1
Argo, Maximo1
Barker, Laura1
Chen, Jiaming1
Fu, Tengfei1
more Creators »

Contributor

Ideker, Jason1
Weiss, W. Jason1

Date

Date range begin – Date range end

Current results range from 2013 to 2018

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Decade

2010-2019[remove]16

Degree Field

Civil Engineering[remove]16

Degree Level

Master's12
Doctoral4

Degree Name

Master of Science (M.S.)12
Doctor of Philosophy (Ph.D.)4

Language

English [eng]16

License

All rights reserved16

Non-Academic Affiliation

Oregon State University. Graduate School13

Peer Reviewed

No16

Resource Type

Masters Thesis12
Dissertation4

Rights Statement

In Copyright16

Subject

Concrete bridges -- Maintenance and repair3
Bridges -- Retrofitting2
Flexure2
Reinforced concrete2
Shear (Mechanics)2
more Subjects »

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