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http://dx.doi.org/10.9711/KTAJ.2011.13.3.233

Mechanical characteristics of high-performance concrete shield segment containing ground granulated blast furnace slag and their improvement by steam curing  

Kim, Byoung-Kwon (삼표건설 기술개발)
Lee, Jin-Seop (삼표건설 기술개발)
Lee, Gyu-Phil (한국건설기술연구원 기반시설연구본부 지반연구실)
Chang, Soo-Ho (한국건설기술연구원 기반시설연구본부 지반연구실)
Bae, Gyu-Jin (한국건설기술연구원)
Publication Information
Journal of Korean Tunnelling and Underground Space Association / v.13, no.3, 2011 , pp. 233-242 More about this Journal
Abstract
This study aims to evaluate the applicability of high-strength concrete mixed with blast furnace slag to shield segment lining in order to improve its performance and economic efficiency. Especially, it was also intended to derive the optimum replacing ratio of ground granulated blast furnace slag to ordinary cement as well as the optimum steam curing condition for shield segment concrete with the design strength of 60 MPa. From a series of experiments, the condition of 50% replacement of ordinary cement by ground granulated blast furnace slag and unit water content of 125 kg/$m^3$ was proposed as the optimum mixing condition. Comparing with standard curing conditions, it was also possible to expect approximately 110~442% strength improvement of concrete by steam curing in the same mixing condition.
Keywords
Shield tunnel; segment; ground granulated blast furnace slag; steam curing;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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