Lab Training: Cement & Concrete Mix Design and Early-Stage Hydration with Prof. Thomas Bier

On January 30, 2026, students of the Master of Science in Materials Science (MSI) program at VGU participated in a rigorous, hands-on laboratory session for the Inorganic, Non-Metallic Binders module.

Supervised by Prof. Dr.-Ing. Thomas Bier, our flying faculty from Germany, the session allowed students to immediately translate theoretical thermodynamics of binder hydration into physical cement and mortar formulations.

🔬 Practicing Modern Binder Engineering

Operating in VGU's advanced concrete technology laboratory, student groups conducted key industrial characterization and mixing steps:

1. High-Precision Proportioning: Calculating and weighing water-to-cement ($w/c$) ratios to control mechanical strength and porosity.
2. Homogeneous Mixing: Mixing dry cement, fine aggregates, and functional admixtures to achieve targeted rheological properties.
3. Workability & Flow Assessment: Utilizing flow tables to measure slump, workability, and the yield stress of fresh mortar mixtures.
4. Casting & Setting Analysis: Casting fresh mixtures into professional standard molds, monitoring setting behavior, and observing early-stage microstructure consolidation.

!NOTEMSI Takeaway: Cement is not just a building material; it is a complex, chemically active mineral system. Understanding how superplasticizers and accelerators alter early-stage calcium-silicate-hydrate (C-S-H) gel growth is key to designing high-performance concretes.

🚀 Building Real-World Competency

Through these practical, collaborative exercises, VGU students gain deep, quantitative insights into concrete mix design, microstructural development, and durability control.

This hands-on training forms a strong foundation for future research in green concrete formulations, sustainable geopolymers, and advanced binder materials—preparing our graduates to lead construction materials R&D both in academia and global industries.