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A platform for research: civil engineering, architecture and urbanism
Improving reinforced-concrete infrastructure using electrokinetic treatments and FRP rehabilitation
There are two primary concerns facing reinforced-concrete (RC) infrastructure - corrosion and increased load demands. Methods are needed to improve the corrosion environment and limit the corrosion process. Methods are also needed to strengthen structures and increase their load capacities. The goal of this paper, the first in a series, is to present a methodology that can be used to appease the aforementioned concerns. The methodology includes the use of electrochemical treatment to extract corrosive chloride particles from concrete, followed by the use of electrokinetic treatment, in which silica-alumina nanoparticles are used to decrease the porosity of the concrete. With the decrease in porosity, the strength of the concrete, as well as its corrosion resistance, is expected to increase. Externally-bonded fiber-reinforced polymer (FRP) composites are also used as a means to increase load capacity. The durability of the rehabilitation schemes on beam structures will be assessed via full immersion in salt water. The data will be used to estimate the service life of structures using reliability-based methods. It is the hope that the methodology can be used by the engineering community to effectively, and economically, repair and strengthen RC structures.
Improving reinforced-concrete infrastructure using electrokinetic treatments and FRP rehabilitation
There are two primary concerns facing reinforced-concrete (RC) infrastructure - corrosion and increased load demands. Methods are needed to improve the corrosion environment and limit the corrosion process. Methods are also needed to strengthen structures and increase their load capacities. The goal of this paper, the first in a series, is to present a methodology that can be used to appease the aforementioned concerns. The methodology includes the use of electrochemical treatment to extract corrosive chloride particles from concrete, followed by the use of electrokinetic treatment, in which silica-alumina nanoparticles are used to decrease the porosity of the concrete. With the decrease in porosity, the strength of the concrete, as well as its corrosion resistance, is expected to increase. Externally-bonded fiber-reinforced polymer (FRP) composites are also used as a means to increase load capacity. The durability of the rehabilitation schemes on beam structures will be assessed via full immersion in salt water. The data will be used to estimate the service life of structures using reliability-based methods. It is the hope that the methodology can be used by the engineering community to effectively, and economically, repair and strengthen RC structures.
Improving reinforced-concrete infrastructure using electrokinetic treatments and FRP rehabilitation
Verbesserung einer verstärkten Betonstruktur mittels elektrokinetischer Behandlungen und FRP-Reparatur
Gordon, Kanielle (author) / Lee, Luke (author) / Cardenas, Henry (author)
2007
10 Seiten, 3 Bilder, 2 Tabellen, 17 Quellen
Conference paper
Storage medium
English
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