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Precast; concrete; tunnel; linings; chloride; ions; corrosion; structural; durability; fibre; reinforced concrete; ultra-high; performance; flexural
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Structural And Durability Performance Of Precast Segmental Tunnel Linings, Safeer Abbas
Structural And Durability Performance Of Precast Segmental Tunnel Linings, Safeer Abbas
Electronic Thesis and Dissertation Repository
The use of precast concrete tunnel linings (PCTLs) has been escalating due to its efficient and economical installation process compared to that of normal cast in-situ lining practice. Normally, PCTL segments are designed for 100 years of service life. However, tunnel structures often suffer premature degradation primarily due to reinforcement corrosion, which requires costly repair and maintenance. Hence, addressing and solving such durability-sustainability dilemma of tunnels is a must. The main aim of this dissertation is to evaluate the structural and durability performance of full-scale conventional reinforced concrete (RC) PCTL segments in comparison to steel fibre-reinforced concrete (SFRC). Moreover, the …