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Targeting Low Cost and Value-Added Rehabilitation of Large Diameter Sewers

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For many years, the City of Indianapolis has experienced cost effective and efficient bidding of large diameter sewer rehabilitation projects using shotcrete lining technologies. In the region, Indianapolis has embraced the use of shotcrete for large diameter sewer rehabilitation projects and the costs just keep getting lower. Bid prices as recent as March 2008 are coming in lower than shotcrete rehabilitation projects over five years ago. Shotcrete rehabilitation of large diameter pipelines sometimes gets a bad rap, but the technology is efficient and gets better all the time with additional additives for corrosion resistance and increased structural strength. This paper discusses shotcrete rehabilitation for a large diameter sewer, and construction on two miles of 42-inch through 72-inch diameter brick and concrete sewer from design inception through construction.
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Keywords: CSO; Lining; Rehabilitation; Sewer; Shotcrete

Document Type: Research Article

Publication date: 2009-01-01

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