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- W53726288 abstract "Concrete is the most used construction material today, the vast majority of it reinforced with ordinary reinforcing steel. Much research has been put into improving the protection of steel reinforcement by increasing concrete cover and impenetrability. However, even though concrete quality has indeed improved much in the last decades, reinforcement corrosion is still a serious problem. The aim of this project was to evaluate alternative reinforcement approaches. In other parts of the world, especially North America, the use of alternatives to ordinary reinforcing steel is much more adapted. Distribution channels, real-life examples and design codes are all available there and have been used as sources in this project. The material properties, availability, required reinforcement amounts, sustainability and cost were evaluated for each reinforcement approach with subsequent conclusions. Initially, research on available reinforcement methods was studied. The experiences, material properties and cost of the alternatives were evaluated. Some of the reinforcement approaches were judged as promising and chosen for further study in the following phases. The chosen materials are: Ordinary reinforcing steel; ferritic and austenitic stainless steel; carbon, aramid, basalt and glass fibre reinforced plastics; plain and fibre reinforced concrete. A case study project was chosen from the stock of projects designed at COWI, where the research project was carried out. A part of the building’s basement was designed with the several reinforcement approaches. The reinforcement arrangements were presented in drawings and conclusions from the design processes were noted. A life-cycle analysis of both cost and sustainability was performed based on the literature study and reinforcement designs. It was concluded that if the longer service life made possible by more durable reinforcement is utilized, all studied alternatives to ordinary reinforcing steel are more economic over the life-cycle of the building. The initial cost though, as expected, is higher for most alternatives to ordinary reinforcing steel. However as many large costs are independent of reinforcement approach; the impact on the total initial investment would be within just 6 % for all options." @default.
- W53726288 created "2016-06-24" @default.
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- W53726288 date "2015-01-01" @default.
- W53726288 modified "2023-09-24" @default.
- W53726288 title "Alternative Reinforcement Approaches" @default.
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