What does this research mean for the field?

Substituting cement with 30% and 50% fly ash in mortar mixtures reduces cradle-to-gate Global Warming Potential by 28.4% and 47.4% respectively, offering a promising low-carbon construction alternative. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To quantify cradle-to-gate global warming potential for mortar mixtures substituted with fly ash and evaluate uncertainty and emission drivers within low-carbon construction frameworks.

September 5, 2026Civil Engineering and ArchitectureOpen Access

Cradle-to-Gate LCA of Fly Ash Mortar for Low-Carbon Construction: GWP Reduction, Uncertainty Analysis, and Policy Relevance

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Authors

SDSutria Desman NSNurhasan Syah MGMulya Gusman

Discussion

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Overview

Scenario-based life cycle assessment reveals up to 47.4% reduced global warming potential in fly ash mortar mixtures, highlighting substantial decarbonization potential for low-carbon construction.

Key Points

To quantify cradle-to-gate global warming potential for mortar mixtures substituted with fly ash and evaluate uncertainty and emission drivers within low-carbon construction frameworks.
Designed a scenario-based cradle-to-gate life cycle assessment using a functional unit of 1 m³ of mortar targeted to approximately 25 MPa compressive strength.
Included raw material production, transport to the batching plant, and mixing stages, treating fly ash under a cut-off allocation approach.
Conducted a Monte Carlo simulation with 10,000 iterations to evaluate sensitivity and uncertainty for the 30% fly ash replacement scenario.
The baseline mortar without fly ash generated a global warming potential of 266.6 kg CO2-eq/m³.
Replacing 30% of cement with fly ash lowered global warming potential to 190.8 kg CO2-eq/m³, representing a 28.4% (75.8 kg CO2-eq/m³) reduction relative to baseline.
Replacing 50% of cement with fly ash reduced global warming potential to 140.2 kg CO2-eq/m³, reflecting a 47.4% (126.4 kg CO2-eq/m³) reduction relative to baseline.

Cite This Study

Desman et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd3e16b95aff0620eb1bb https://doi.org/10.13189/cea.2026.140517

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September 5, 2026Civil Engineering and ArchitectureOpen Access

Cradle-to-Gate LCA of Fly Ash Mortar for Low-Carbon Construction: GWP Reduction, Uncertainty Analysis, and Policy Relevance

View Full Paper

Ask AI

Bookmark

Authors

SDSutria Desman NSNurhasan Syah MGMulya Gusman

Discussion

Member takes

Overview

Scenario-based life cycle assessment reveals up to 47.4% reduced global warming potential in fly ash mortar mixtures, highlighting substantial decarbonization potential for low-carbon construction.

Key Points

To quantify cradle-to-gate global warming potential for mortar mixtures substituted with fly ash and evaluate uncertainty and emission drivers within low-carbon construction frameworks.
Designed a scenario-based cradle-to-gate life cycle assessment using a functional unit of 1 m³ of mortar targeted to approximately 25 MPa compressive strength.
Included raw material production, transport to the batching plant, and mixing stages, treating fly ash under a cut-off allocation approach.
Conducted a Monte Carlo simulation with 10,000 iterations to evaluate sensitivity and uncertainty for the 30% fly ash replacement scenario.
The baseline mortar without fly ash generated a global warming potential of 266.6 kg CO2-eq/m³.
Replacing 30% of cement with fly ash lowered global warming potential to 190.8 kg CO2-eq/m³, representing a 28.4% (75.8 kg CO2-eq/m³) reduction relative to baseline.
Replacing 50% of cement with fly ash reduced global warming potential to 140.2 kg CO2-eq/m³, reflecting a 47.4% (126.4 kg CO2-eq/m³) reduction relative to baseline.

Cite This Study

Desman et al. (2026) studied this question.

synapsesocial.com/papers/6a9bd3e16b95aff0620eb1bb https://doi.org/10.13189/cea.2026.140517

View Full Paper

Ask AI

Bookmark