Influence of Accelerated Carbonation on Physical Properties of Mortar Incorporating Expansive Additives

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Key Points

The aim is to explore how accelerated carbonation affects the physical properties of mortar incorporating expansive additives.
Conducted experiments on mortar mixtures with expansive additives.
Assessed the effects of accelerated carbonation on compressive strength.
Evaluated the calcium carbonate content and potential CO2 diffusion in hardened structures.
Mortar with expansive additives displayed higher compressive strength during the initial 2 days of curing.
Accelerated carbonation increased calcium carbonate content in mixtures with expansive additives.
A combination of expansive additives and γ-C2S resulted in greater expansion and higher calcium carbonate content compared to mixtures using expansive additives alone.

Experimental study investigates physical properties of mortar with expansive additives, suggesting enhanced strength through carbonation.

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FUNAKURA et al. (2026) studied this question.

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