Structural Behavior of Precast Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) Cantilever Retaining Walls: Part I - Analysis and Design Procedures and Environmental Impact Calculations (EIC)

다국어 초록 (Multilingual Abstract)

Ultra-high Performance Fiber Reinforced Concrete (UHPFRC) is a new generation of cementitious based construction materialdeveloped in the mid 1990s that its unique characteristics such as high durability and impermeability, negligible shrinkage/creep andhigh impact resistance lead to almost maintenance free and direct enhancement of the life-span of a structure. UHPFRC is an ecofriendlyand environmentally green construction material which has the capacity to compete not only with conventional ReinforcedConcrete (RC) or prestressed concrete design, but it is also able to compete with conventional steel design. This paper is presented intwo parts. The first part (Part I) of this paper presents the analysis and design procedures of the precast UHPFRC cantilever retainingwalls as a sustainable alternative approach to conventional precast RC cantilever retaining walls. Further, the Environmental ImpactCalculations (EIC) of the precast UHPFRC cantilever retaining walls were compared against the conventional precast RC cantileverretaining walls as the benchmark. The second part (Part II) of this paper evaluates the reliability of the precast UHPFRC cantileverretaining walls through experimental tests on full scale UHPFRC wall specimens. The EIC results proved that cantilever retainingwalls fabricated from UHPFRC are generally more environmentally sustainable than those built of the conventional RC with respectto the reduction of CO2 emissions, Embodied Energy (EE) and Global Warming Potential (GWP). Finally, advantages of the precastUHPFRC cantilever retaining walls versus the conventional precast RC walls were presented.

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