The Two Faces of Concrete Carbonation

Concrete can be subjected to two distinct types of carbonation. The first is weathering carbonation, which concerns mature concrete reacting over an extended period of time when it is exposed to carbon dioxide in the atmosphere. The second is early age carbonation, which involves utilizing carbon dioxide in the production of concrete wherein the reaction occurs at very early ages on fresh concrete.

The carbonation can take place as early as the concrete mixing stage and can end prior to, or in line with, the conclusion of accelerated curing
(as much as 48 hours later).

The following document explores both types of carbonation in more detail.

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Authored by: Sean Monkman

Narrated by: Jaden Texeira