*4.3. Circular Economy*

Although CACs can potentially be used to benefit the environment, including the use of waste as aggregates in concrete manufacturing, neutralization of reactive substances, and the storage of hazardous substances, no studies were found that investigate the use of CACs within the circular economy production chain.

Searching in the Scopus database using the keywords calcium aluminate cement + circular economy did not produce any results. This reveals that little work has been carried out on the management of solid waste generated from manufactured products based on CAC. Therefore, new processes using CAC-based waste and the circular economy would be of great interest to industry, and would potentially have a significant environmental impact.
