This research study investigates the potential of using Calcium Sulfoaluminate (CSA) binder as a sustainable alternative to ordinary Portland cement (OPC) in the production of precast concrete tunnel lining (PCTL) segments. The effectiveness of CSA-based concrete, reinforced with Glass Fiber-Reinforced Polymer (GFRP) bars, was examined through an experimental program. Comparative analyses, including analytical, experimental, and Life Cycle Assessment (LCA) comparisons, were conducted with OPC-based segments reinforced with traditional steel. The results indicate that the proposed CSA/GFRP solution has the potential to improve sustainability in mechanized tunnelling and prefabrication. A case study is also presented to support these findings.

Spagnuolo, S., Meda, A. (2024). Precast CSA-based concrete tunnel lining segments reinforced with GFRP bars: challenges and opportunities. CONSTRUCTION AND BUILDING MATERIALS, 425 [10.1016/j.conbuildmat.2024.136007].

Precast CSA-based concrete tunnel lining segments reinforced with GFRP bars: challenges and opportunities

Simone Spagnuolo
;
Alberto Meda
2024-01-01

Abstract

This research study investigates the potential of using Calcium Sulfoaluminate (CSA) binder as a sustainable alternative to ordinary Portland cement (OPC) in the production of precast concrete tunnel lining (PCTL) segments. The effectiveness of CSA-based concrete, reinforced with Glass Fiber-Reinforced Polymer (GFRP) bars, was examined through an experimental program. Comparative analyses, including analytical, experimental, and Life Cycle Assessment (LCA) comparisons, were conducted with OPC-based segments reinforced with traditional steel. The results indicate that the proposed CSA/GFRP solution has the potential to improve sustainability in mechanized tunnelling and prefabrication. A case study is also presented to support these findings.
2024
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ICAR/09
English
Calcium sulfoaluminate (CSA) cement; Case study; Glass Fiber-Reinforced Polymer (GFRP) bars; Life Cycle Assessment (LCA); Prefabrication; Sustainability; Tunnelling
Spagnuolo, S., Meda, A. (2024). Precast CSA-based concrete tunnel lining segments reinforced with GFRP bars: challenges and opportunities. CONSTRUCTION AND BUILDING MATERIALS, 425 [10.1016/j.conbuildmat.2024.136007].
Spagnuolo, S; Meda, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/361215
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