Probabilistic Embodied Carbon Assessments for Alkali-Activated Concrete Materials DOI Open Access

Nouf Almonayea,

Natividad García-Troncoso, Bowen Xu

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 17(1), P. 152 - 152

Published: Dec. 28, 2024

This study evaluates the environmental impact of alkali-activated concrete materials (AACMs) as alternatives to conventional concrete. The influence binder and activator content type, along with other mix parameters, is analysed using a probabilistic embodied carbon assessment on large dataset that includes 580 mixes. Using cradle-to-gate approach region-specific life-cycle inventory data, emissions are against intensity, activator-to-binder water-to-binder ratios, fresh/mechanical properties. A multicriteria quantifies best-performing in terms carbon, compressive strength, slump. AACM compared through existing classification schemes literature. vary between 41 261 kgCO2eq/m3, activators contributing most (3–198 kgCO2eq/m3). Uncertainty transport-related could shift these values by ±38%. AACMs can achieve up four-fold less for high-strength concrete, although this benefit decreases lower mechanical sustainability depends characteristics, curing, design, transportation.

Language: Английский

Probabilistic Embodied Carbon Assessments for Alkali-Activated Concrete Materials DOI Open Access

Nouf Almonayea,

Natividad García-Troncoso, Bowen Xu

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 17(1), P. 152 - 152

Published: Dec. 28, 2024

This study evaluates the environmental impact of alkali-activated concrete materials (AACMs) as alternatives to conventional concrete. The influence binder and activator content type, along with other mix parameters, is analysed using a probabilistic embodied carbon assessment on large dataset that includes 580 mixes. Using cradle-to-gate approach region-specific life-cycle inventory data, emissions are against intensity, activator-to-binder water-to-binder ratios, fresh/mechanical properties. A multicriteria quantifies best-performing in terms carbon, compressive strength, slump. AACM compared through existing classification schemes literature. vary between 41 261 kgCO2eq/m3, activators contributing most (3–198 kgCO2eq/m3). Uncertainty transport-related could shift these values by ±38%. AACMs can achieve up four-fold less for high-strength concrete, although this benefit decreases lower mechanical sustainability depends characteristics, curing, design, transportation.

Language: Английский

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