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Cement's dual role in the carbon cycle: emitter and long-term sink — NSERC Knowledge Graph

InferenceChain·nserc

Cement's dual role in the carbon cycle: emitter and long-term sink

This reasoning chain explains how the processes of cement production and carbonation interact dynamically at global scale, turning cement materials into both a major industrial CO2 source and an overlooked, substantial carbon sink, offsetting a large fraction of its process emissions over time.

Confidence
80%
◑partialactivecomplexity: mid

Reasoning Steps (2)

Cement manufacturing emissions are partially reabsorbed through carbonationStep 1
Material exposure and age determine CO2 uptake ratesStep 2

Source

Synthesis for current paper

Connections (4)

Cement production is a major industrial CO2 emission sourceAssociation
Annual cement carbonation offsets a large fraction of process emissionsAssociation
Mortar cement sequesters the most carbon among cement materialsAssociation
Legacy concrete stocks contribute substantially to carbon sinkAssociation