Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Fundamentals in Building Industries Cement Chemistry, Chemistry of Admixtures Prof. Dr. Andreas Gerdes Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Important mineral binders – Nowadays and in former times Lime stone (CaCO 3 ) •Since 5600 – 5000 b.C. •1st traces of application: Region of the river Danube Portland cement (PC, PZ, CEM) •Since 1824/1843 invention of J. Aspdin, improved by W. Aspdin •Portland = natural stone from the island Portland Gypsum (CaSO 4 . 2 H 2 O) •Known since 9000 b.C. •1st traces of application: Catal Huyuk Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft 0 5 10 15 20 25 30 35 40 Zementproduktion in Millionen Tonnen [1990] Österreich UK Deutschland Italien Norwegen Luxemburg Niederlande Spanien Schweden Schweiz The Portland cement – important for Economy and Society
Fundamentals in Building Industries
May 03, 2023
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Related Documents
