Durability of high belite cement as new technical solution for concrete

Authors

  • Sara Irico Wilhelm Dyckerhoff Institut for Building Materials Technology, Dyckerhoff GmbH, Dyckerhoffstraße 7, 65203 Wiesbaden, Germany
  • Sabine Mutke Wilhelm Dyckerhoff Institut for Building Materials Technology, Dyckerhoff GmbH, Dyckerhoffstraße 7, 65203 Wiesbaden, Germany
  • Federica Bertola Buzzi Unicem Innovation Lab and Technology (Built), Via Restano 3, 13100, Vercelli, Italy
  • Daniela Gastaldi Buzzi Unicem Innovation Lab and Technology (Built), Via Restano 3, 13100, Vercelli, Italy
  • Livio Capelli Buzzi Unicem Innovation Lab and Technology (Built), Via Restano 3, 13100, Vercelli, Italy
  • Fulvio Canonico Wilhelm Dyckerhoff Institut for Building Materials Technology, Dyckerhoff GmbH, Dyckerhoffstraße 7, 65203 Wiesbaden, Germany; Buzzi Unicem Innovation Lab and Technology (Built), Via Restano 3, 13100, Vercelli, Italy

DOI:

https://doi.org/10.14311/APP.2022.33.0245

Keywords:

belitic cement, low heat cement, low heat concrete

Abstract

The study presents an investigation on the durability performance of concretes produced with an industrial scale high belite cement. This binder, thanks to the high amount of C-S-H gel and the lower C3S/C2S ratio, is characterized by high durability properties. Good resistance to freeze/thaw cycles, very low chloride migration and excellent resistance to sulfate attack were demonstrated. The
accelerated carbonation test revealed that the belite cement, due to the high C2S phase amount, is able to increase its strength over time when exposed to high CO2 concentration. Durability and strength results were compared with those of CEM I, CEM II, and CEM III. In addition, a comparison of the performance of a self-compacting concrete produced with high belite cement and CEM I (as reference) is also presented. The results show that the self-compacting concrete with the high belite cement is able to reach sufficient strengths already after 1 day of hydration, with a low heat development and improved durability properties, compared to CEM I.

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Published

2022-03-03

How to Cite

Irico, S. ., Mutke, S. ., Bertola, F. ., Gastaldi, D., Capelli, L., & Canonico, F. (2022). Durability of high belite cement as new technical solution for concrete. Acta Polytechnica CTU Proceedings, 33, 245–249. https://doi.org/10.14311/APP.2022.33.0245