Browsing Theses by Subject "Corrosion"
Now showing items 1-19 of 19
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An Analysis of the Factors Influencing Electrochemical Measurements of the Condition of Reinforcing Steel in Concrete Structures
(University of Waterloo, 2007-07-16)Electrochemical assessment of the condition of the steel reinforced concrete structures is being carried out increasingly and more regularly, both in the laboratory and in the field. It is important to have enough information ... -
Behaviour of Shear Critical RC Beams with Corroded Longitudinal Steel Reinforcement
(University of Waterloo, 2010-09-29)This thesis discusses the results of an experimental program designed to investigate the effect of corrosion on the behaviour of shear critical reinforced concrete (RC) beams. The results of twenty RC beams (ten deep beams ... -
Bond and Development Length in Concrete Beams with Exposed Reinforcement
(University of Waterloo, 2013-09-19)Corrosion of steel reinforcement in Ontario bridges is causing severe soffit spalling in many situations. These spalled areas are often located within the lap splices and curtailment zones of the primary reinforcement. ... -
Bond of Corroded Reinforcement in Partial Depth Repairs in Reinforced Concrete Elements
(University of Waterloo, 2017-08-29)The bond in a reinforcement concrete (RC) structure is represented by the force transfer between the reinforcing bar and the surrounding concrete. All the RC structures are designed to have a perfect bond between the ... -
The Case for Stainless Steel Reinforcing Bars
(University of Waterloo, 2015-03-19)As Canada’s ever expanding transportation network continues to age, the costs associated with rehabilitating and replacing structural elements, such as bridges, continues to grow. This rehabilitation is often required ... -
Corrosion of Alternative Grades of Reinforcing Steel in Concrete
(University of Waterloo, 2010-08-27)Reinforcing steel in concrete has been used for many years in roads, bridges and other structures to give strength and durability; concrete has only good compressive strength and reinforcing steel gives the tensile strength ... -
Corrosion Study of Silver Nanowires
(University of Waterloo, 2017-09-18)Indium tin oxide is a transparent conductive material that is widely used in electronic consumer products such as LCDs, LEDs, OLEDs, touch-screen devices, and diagnostic sensors. However, indium tin oxide is costly to ... -
Crack in Corrosion Flaw Assessment in Thin-Walled Pipe
(University of Waterloo, 2014-08-28)Pipelines are a safe and efficient method for transporting high volumes of oil and gas. However, aging pipelines may experience flaws, such as cracks or corrosion. Present approaches include detection, assessment and repair ... -
Development of Highly Anti-Corrosive and Mechanically Improved Graphene-Based Polyurethane Nanocomposites for the Application of Pipeliners in Oil Sands Transportation
(University of Waterloo, 2020-02-20)In contemporary composite science, polymer nanocomposites are the promising functional materials in the research field. Among them, the nano-sized filler, graphene, supplements the flaws of polymeric materials with their ... -
Effect of Forming Temperature and Sheet Temper on the Brazing Characteristics of Aluminum Alloy Sheet
(University of Waterloo, 2018-09-20)Automotive heat exchangers are fabricated by forming and brazing of multi-layered aluminum (Al) alloy sheets. The Al brazing sheets are comprised of two alloy layers: an AA3xxx core, which provides strength to the assembly, ... -
The effect of galvanized steel corrosion on the integrity of concrete
(University of Waterloo, 2008-01-16)The major concern regarding the use of hot-dip galvanized (HDG) steel as reinforcement in concrete has been the high rate of corrosion experienced by the zinc during the first hours in the fresh, wet, and highly alkaline ... -
Effects of De-icing and Anti-icing Chemicals on the Durability of Reinforcing Steel in Concrete
(University of Waterloo, 2013-09-25)Concrete is strong in compression; however, it is quite fragile in tension. To overcome this flaw, concrete is frequently reinforced with bars typically made of low grade, low carbon steel. The environment inside of concrete ... -
Enhancing Corrosion Performance of Laser Modified NiTi Shape Memory Alloy
(University of Waterloo, 2014-05-15)Laser processing of NiTi shape memory alloys (SMA) has been identified as having great potential in surface treatment, welding, and novel performance requirement applications. However, discrepancies arise regarding whether ... -
Evaluating the Effects of Spalling on the Capacity of Reinforced Concrete Bridge Girders
(University of Waterloo, 2011-09-01)Corrosion of the reinforcing steel is a primary deterioration mechanism for reinforced concrete bridges. Heavy use of de-icing salts is believed to be a major contributor in Ontario to severe girder soffit spalling in ... -
Fatigue Bond Behaviour of Corroded Reinforcement and CFRP Confined Concrete
(University of Waterloo, 2007-07-13)Bond in a reinforced concrete (RC) structure is the interaction force that transfers force between the steel and concrete. It influences the structural performance and serviceability of a structure under both static and ... -
Graphene and Glass Flake Nanocomposites Coatings for Corrosion Mitigation in Chloride Rich Environments
(University of Waterloo, 2018-08-02)Inspired by the needs for the preparation of protective coatings with enhanced protection properties especially corrosion resistance in the oil and gas industry, the research focuses on the synthesis and the evaluation of ... -
Influence of alloying elements, testing solution and surface roughness on corrosion behaviour of stainless steel reinforcing bars
(University of Waterloo, 2020-01-10)The province of Ontario has moved from applying rock salt crystals, predominantly impure sodium chloride, to locally available anti-icing brine solutions with chloride amounts as high as 21%. At the same time, the specified ... -
Shear Behaviour of Disturbed Regions in Reinforced Concrete Beams with Corrosion Damaged Shear Reinforcement
(University of Waterloo, 2008-08-29)Corrosion of reinforcing steel is a major problem facing infrastructures owners with billions of dollars spent in repairing our aging infrastructure. One of the first steps in the repair process is to quantify the strength ... -
Shear Behaviour of Slender RC Beams with Corroded Web Reinforcement
(University of Waterloo, 2013-04-29)This research study examined the effect of corrosion of web reinforcement (stirrups) on the shear behaviour of slender reinforced concrete (RC) beams. The experimental program consisted of seventeen slender shear-critical ...