Carbonated Durability of Premixed Concrete with Carbon Dioxide as an Admixture

The cement manufacturing industry emits a large amount of CO2 during the production process, exacerbating environmental problems such as greenhouse effect. To solve this problem, researchers in the engineering field have developed a large number of new technologies and products to reduce carbon emissions when using Portland cement concrete. Among them, injecting CO2 into fresh concrete is a direct approach to the topic. However, further research is needed on its carbon sequestration efficiency and whether it will have adverse effects on the durability of concrete structures. This article summarizes the current research status of pre mixed concrete using CO2 as an admixture, analyzes its carbon sequestration efficiency, and based on a concrete carbonation durability life prediction model, analyzes the impact of CO2 injection on carbonation durability life during concrete mixing.