
In honorable memory of Hans Kühl (1879–1969), the GDCh Division of the Chemistry of Construction Materials awards the Hans Kühl Medal at irregular intervals to individuals,

The Hans Kühl Medal is awarded to Dr. Gerhard Albrecht (Kobe, Japan) in recognition of his outstanding achievements in the development of highly innovative concrete admixtures, including vinyl ether-based PCEs, which represent a unique selling point for BASF worldwide, and a completely new type of cement accelerator (CSH-PCE) based on nucleation seeding. Such admixtures will play a decisive and outstanding role in the introduction and distribution of CO2-reduced cements in the future. As the long-standing Head of central development for concrete admixtures at SKW/Degussa/BASF, Dr. Albrecht has had a decisive influence on global concrete technology with important inventions and patents and has taken it to new dimensions.

Dr. Tsuyoshi Hirata
Nippon Shokubai, Japan
Invention of PCE flow agent

Dr. Hugo Rietveld
Energy Research Foundation ECN, The Netherlands
Refinement strategies for X-ray and neutron data

Prof. Dr. Wolfgang Wieker
GNF eV, Berlin
Basic research on chemistry of construction materials

Dr. Michael Roth
Wacker Chemie, Burghausen
Invention of silicone resin paints and waterproofing agents
| Year | Theme | Award to |
|---|---|---|
| 2020 | Development of highly innovative concrete additives | Dr. Gerhard Albrecht, Kobe, Japan |
| 2013 | Invention PCE Flow Agent | Dr. Tsuyoshi Hirata, Nippon Shokubai, Japan |
| 2010 | Refinement strategies for X-ray and neutron data | Dr. Hugo Rietveld, Energy Research Foundation ECN, The Netherlands |
| 2006 | Fundamental research on chemistry of construction materials | Prof. Dr. Wolfgang Wieker, GNF eV, Berlin |
| 2005 | Fundamental research on chemistry of construction materials |
Prof. Dr. Otto Henning, University of Architecture and Civil Engineering Weimar Prof. Dr. Dietbert Knöfel, University of Siegen |
| 2004 | Invention of silicone resin paints and Water-repellent agent |
Dr. Michael Roth, Wacker Chemie, Burghausen |
| 2003 | Invention of flow agents |
Dr. Alois Aignesberger, SKW Trostberg Dr. Kenichi Hattori, Kao Soap, Japan |
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last modified: 15.07.2026 16:59 H from Translator