3rd International Workshop on Calcium Sulfoaluminate Cements

Calcium Sulfoaluminate Cements (CSA)

The 3rd International Workshop on Calcium Sulfoaluminate Cements (CSA 2025) will be held on Monday 23 – Wednesday 25 June 2025 at the University of Leeds, UK.

Following the success of the 1st and 2nd International Workshops on Calcium Sulfoaluminate Cements at Murten, Switzerland (2018) and Rome, Italy (2023), we would like to extend our sincere thanks to the previous organisers for their invaluable contributions.

Calcium sulfoaluminate (CSA) based cements are receiving increasing interest as (i) an environmentally friendly alternative to conventional cement and (ii) as they can be used to formulate mortars and concretes with special properties such as fast set, high early strength, shrinkage-compensation, waste solidification, and ion immobilisation.

This workshop will bring together researchers working on several aspects of CSA cements with the different stakeholders working with CSA-based concretes in the industry. Gathering experts from all around the world will stimulate scientific discussions and can promote national and international collaboration. We aim at exchanging state-of-the-art knowledge on several topics including:

Raw materials and clinkering
Hydration mechanisms, admixtures, and fresh concrete
Characterisation
Durability and practice
Applications: structural and immobilisation
Nomenclature, standards, and protocols

Visualisation of the growth of ettringite needles. Ettringite is the main hydration phase in CSA based cements.

Video credit: Conceptualization: Eric Bescher (UCLA); Graphics : Dale Wilcox, (CTS Cement Manufacturing Corporation)