Columbia Canal Brick Arch Tunnel Geopolymer Lining in South Carolina: TM2-T5-01


Columbia Canal Brick Arch Tunnel Geopolymer Lining in South Carolina: TM2-T5-01

Authors:

Bill Sharpe, Joe Royer

Abstract: In the fall of 2017, the City of Columbia, South Carolina placed a publicly bid project for major upgrades to a critical water treatment plant (WTP). The scope of work included the rehabilitation of multiple existing brick arch storm water culverts ranging from 4’x6’ to 8’x8’. Columbia Water did a comprehensive investigation of the rehabilitation options available, including a 2012 pilot study, and selected a geopolymer mortar spray-applied system as the means for structural rehabilitation. The project consisted of three separate culverts, originally constructed in the 1820s within the treatment plant, that carried stormwater runoff underneath the emergency water reservoir, clear well, and canal before discharging into the Broad River. This paper includes a summary of the rehabilitation technology selection process along with details of the special provisions in the specifications; the design and rehabilitation of the culverts which occurred over a 3-week period; an overview of the quality control performed as part of the project; construction details; and lessons learned.

Published: 2021

Presented: NASTT No-Dig Show 2021, Orlando, Florida | Paper Number: TM2-T5-01


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