Name: GEMS Workshop
Start: 2025-06-03T09:00
End: 2025-06-06T15:00
Location: Empa, Akademie

The intention of this workshop is to give an introduction to use mass balance calculations as well as GEMS (Gibbs Energy Minimizations), a thermodynamic modelling software using free energy minimization developed at PSI, and its applications to cementitious systems.

	Tuesday, 3. June 2025 - Friday, 6. June 2025
	`2025-06-03 09:00:00 2025-06-06 15:00:00 Europe/Zurich GEMS Workshop The intention of this workshop is to give an introduction to use mass balance calculations as well as GEMS (Gibbs Energy Minimizations), a thermodynamic modelling software using free energy minimization developed at PSI, and its applications to cementitious systems. Empa, Akademie`

	Doors open	08:30
	Begin	09:00
	End	Fri 06.06.2025, 15:00

	Empa, Akademie
	Überlandstrasse 129
	8600 Dübendorf
	Switzerland

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	Organizer website

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Topic
Cementitious materials show a rapid and complex evolution of pore water composition and mineral assemblage during hydration.
Thermodynamic equilibrium and mass balance calcula- tions are a valuable tool to understand the different processes in cementitious systems.
They can help to understand the consequences of different factors such as cement composition, hydration, leaching or temperature on the composition and the properties of a hydrated cementitious system on a chemical level.

Learning outcomes

Understanding of the principles of thermodynamic equilibrium and mass balance calculations
Basic knowledge on thermodynamic data
Ability to calculate the hydrate composition of cementitious materials

Ability to create single systems and process files in GEMS to calculate:

hydrate compositions of cementitious materials
saturation indices
chemical interactions of cementitious materials with the environment

Lecturer
Barbara Lothenbach, Empa
Frank Winnefeld, Empa
George-Dan Miron, Georg Kosakowski, PSI
Shishir Mundras, Fabio Furcas, ETH

Registration deadline:
18 April 2025