• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: The Effect of Alkanolamine Admixtures in the Hydration of Limestone Calcined Clay Cements (LC3)

Author(s): Franco Zunino, Karen L. Scrivener

Publication: Symposium Paper

Volume: 354


Appears on pages(s): 219-224

Keywords: grinding aids; TEA; TIPA; DEIPA; carboaluminates; ferrite; sustainability

DOI: 10.14359/51736075

Date: 7/1/2022

The optimization of the production process and mixture design using blended cements is an important step to achieving widespread adoption of these new technologies. In particular, grinding is an important step to ensure good reactivity at early ages and adequate flowability. Grinding aids are normally used to reduce the electrostatic forces between particles and increase the yield of the process. Alkanolamines is a family of molecules that are commonly used for this purpose. In this study, the effect of alkanolamines on LC3 hydration was studied. It was observed that alkanolamines influence the hydration of the aluminate phases in clinker, particularly ferrite. This leads to enhanced precipitation of carboaluminates. An increase in early age strength was seen for LC3 systems incorporating TIPA (triisopropanolamine).