International Conference on Calcium Aluminates 2026

Session

Admixtures/Rheology

9 Jun 2026, 14:30

SwissTech Convention Center EPFL

28. Calcium Aluminate Cement Hydration under the Influence of Mineral Acids

Lukas Deffner

09/06/2026, 14:30

Hydration

Oral Presentation

In technical applications, the hydration kinetics of calcium aluminate cement (CAC) are commonly modified by chemical admixtures. In this phenomenological study, we investigate the influence of five strong acids - HCl, HNO₃, HClO₄, H₂SO₄, and H₃PO₄ - on CAC hydration under two conditions: dilute suspensions (w/s = 100) and cement pastes (w/s = 0.3). In dilute systems, in-situ pH and...

38. Hydration control additives for OPC CAC anhydrite system

Dr Joerg Nehring (BASF Construction Additives GmbH)

09/06/2026, 14:50

Admixtures/Rheology

Oral Presentation

Modern dry mortar formulations require precise hydration control to address performance, sustainability, and supply chain considerations. The OPC–CAC system is a ternary binder composed of Ordinary Portland Cement (OPC), Calcium Aluminate Cement (CAC), and a calcium sulfate source such as anhydrite or hemihydrate. This combination is commonly used in applications including self-leveling...

30. Effect of Calcium Sulfate Source and Curing Temperature on the Hydration Behavior of CAC-OPC-C$ Ternary Systems

Özge Demirdogan (Sabanci Technology Center GmbH - Middle East Technical University)

09/06/2026, 15:35

Hydration

Poster Presentation

In this study, the hydration behavior of ternary binder systems composed of calcium aluminate cement (CAC), ordinary Portland cement (OPC), and different types of calcium sulfate sources (C$) was investigated under variable curing temperatures. As calcium sulfate sources, natural gypsum and phosphogypsum, a by-product of the phosphate fertilizer industry, were compared to evaluate their...

44. Energy-Efficient 3D Printable Mortars Using CAC–WPC Blends and Microencapsulated PCMs

Mr Ahmet Selim Engin, Ms Melike Sucu, Sibel Sönmez (Çimsa Çimento)

09/06/2026, 15:35

Admixtures/Rheology

Poster Presentation

Additive manufacturing (3D printing) continues to advance as an alternative to conventional construction techniques due to its numerous technical and operational advantages. This study aims to develop a mortar system incorporating Calcium Aluminate Cement (CAC), White Portland Cement (WPC), and microencapsulated Phase Change Materials (mPCMs) for 3D-printing applications. The inclusion of...

8. Review of conversion of calcium aluminates cements: What data science could bring?

Mr Bruno Espinosa (-)

09/06/2026, 15:35

Hydration

Poster Presentation

During decades, calcium cements had been studied as a simple case to study hydration of more complex multiphase cements such as Portland cement, due to its very quick hydration and apparent simple chemistry. The strong dependence of temperature on mechanical strengths development was quickly noticed with unexpected regression of mechanical strength with time when initial hydration proceeds at...

22. Effects of silica nano-particles on hydration properties, microstructure and strength of calcium aluminate cement

Renata Boris (PhD)

09/06/2026, 15:40

Hydration

Poster Presentation

Abstract: Hydration phenomena of a commercial white calcium aluminate cement (CAC (Górkal 70); Al2O3 – 69–72%) at 20°C was modified by adding silica nanoparticles addition in varying amounts and additives in the context of using CACs in the aspiration to achieve climate neutrality and the goal of net zero. The hydration process of CAC modified with silica sol (SS) was tracked by heat flow...

25. Hydration Kinetics and Reactivity of Ternary Binders Based on Ground Granulated Blast Furnace Slag for Low-Carbon fast setting binder

Dr Yasmine Kaci (Ecocem)

09/06/2026, 15:40

Carbon Footprint

Poster Presentation

Ternary binders are frequently used in fast-setting applications, such as rapid tile adhesives, where high early-age performance is required. In this context, the incorporation of ground granulated blast furnace slag (GGBS) offers an effective pathway to reduce the carbon footprint of construction materials, while maintaining reactivity and durability.
This research focuses on evaluating the...

9. Hydration of CAC-alumina systems in the presence of silica fume

Tillmann Schramm (Mineralogy, Friedrich-Alexander-University Erlangen Nürnberg)

09/06/2026, 15:40

Admixtures/Rheology

Poster Presentation

The study is focused on how the hydration of a refractory binder system consisting of commercial white CAC and tabular alumina is changed by the addition of different silica fumes. Four silica fumes, two each of identical quality grade, but obtained from different batches, were selected and characterized by their physical and chemical properties (XRF, laser granulometry, BET). Then they were...