MgO-silicate cement as a stabilizer for clay-based construction materials
Vollständiger Projekttitel: Deciphering the role of magnesium in earth materials for sustainable construction
Dauer: 2022-2026
Projektteam: externe Seite Raphael Kuhn, externe Seite Dr. Ellina Bernard (externe Seite Empa)
Organisation der Finanzierung: externe Seite Schweizer Nationalfonds (SNF)
Projektpartner: Prof. Dr. Guillaume Habert (ETH Zurich), externe Seite Prof. Dr. Pietro Lura (Empa)
Projektbeschreibung
Herausforderungen
The use of clay as a building material enables the valorization of excavated materials with a low CO2 footprint. Unfortunately, the widespread use of such clay-based materials is limited by disadvantages such as low strength, long drying times and poor water resistance.
Über das Projekt
The aim of this project is to overcome these limitations in physical and mechanical properties by stabilizing the clay-based materials using MgO-silicate cement.
Methoden
The improvement of the properties is determined by investigating the hydration reactions and their link to increased strength and durability. In addition, the workability of the material is analyzed under the addition of admixtures.
Weiterführende Publikationen und Beiträge
- externe Seite «Earth stabilisation with MgO-based cement»
- externe Seite «Clean dirt»
- externe Seite «Effects of MgO-based cementitious binder on smectites»
- externe Seite «Comparison of early age properties of MgO and PC stabilized clays containing sodium hexametaphosphate»
- externe Seite «Mg-binders as low carbon stabilization in earth construction»