Life-Cycle Assessment of Strengthening Pre-Stressed Normal-Strength Concrete Beams with Different Steel-Fibered Concrete Layers

Svetlana Pushkar and Yuri Ribakov
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Svetlana Pushkar: Department of Civil Engineering, Ariel University, Ariel 40700, Israel
Yuri Ribakov: Department of Civil Engineering, Ariel University, Ariel 40700, Israel

Sustainability, 2020, vol. 12, issue 19, 1-15

Abstract: This study aimed to determine the difference between two alternatives for pre-stressed normal-strength concrete beams according to life-cycle assessments (LCAs): strengthening the PNSC (pre-stressed normal-strength concrete) beam on one side with a 70 mm width, steel-fibered, high-strength concrete layer (Case 1) and strengthening the PNSC beams by jacketing on three sides with 30 mm width, ultra-high-performance, fiber-reinforced concrete layers (Case 2). We conducted LCAs of these cases using the ReCiPe2016 midpoint and endpoint-single-score methods. The differences among the beams’ endpoint-single-score results were evaluated using a two-stage nested analysis of variance. The ReCiPe2016 midpoint results showed that compared to Case 2, Case 1 reduced the global warming potential, terrestrial ecotoxicity, water consumption, and fossil-resource-scarcity impacts by 73–80%. The ReCiPe2016 endpoint-single-score results showed that the environmental damage from Case 1 was significantly lower ( p = 0.0003) than that from Case 2. These findings could be promising and useful for studying sustainability in construction.

Keywords: pre-stressed normal-strength concrete; composite beam; steel-fibered high-strength concrete; ultra-high-performance fiber-reinforced concrete; life-cycle assessment (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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