Prof. Dr. rer. nat. Bernhard Middendorf

Work experience

  • 10/2018-10/2021: Dean of the Department of Civil and Environmental Engineering, University of Kassel
  • seit 2012: Member of the Board of Directors of the Institute for Structural Engineering (IKI) and the Official Materials Testing Institute (AMPA) of the University of Kassel
  • seit 2012: University Professor (W3), Head of the Department Materials of Civil Engineering and Construction Chemistry, Department of Civil and Environmental Engineering, University of Kassel
  • 2005-2012: University Professor (W3), Chair of Materials in Construction and Member of the Institute for Construction Research, Faculty of Architecture and Civil Engineering, TU Dortmund University of Technology
  • 1995-2005: Academic councilor/senior councilor in the field of building Materials, University of Kassel, Faculty of Civil Engineering
  • 1994: Doctorate, Chemistry of Construction and Materials, Faculty of Natural Sciences and Technology, University of Siegen
  • 1993-1995: Research associate at the Department of Materials in Civil Engineering, University of Kassel, Faculty of Civil Engineering
  • 1989-1993: Research associate at the Laboratory for Construction and Materials Chemistry, University of Siegen
  • 1983-1989: Studies in Mineralogy, University of Cologne; Degree: Diplom-Mineraloge (Mineralogist)


Selection of publications in publication organs with scientific quality assurance:

  • Kuhnt, S., Becker-Emden, E.-C., Schade, T., Eden, W., Middendorf, B., 2021. Use of optimal mixture-process designs and response surface models to study properties of calcium silicate units. Quality and Reliability Engineering International Volume 37, S. 391–408,
  • Schade, T., Middendorf, B., Eden, W., Kuhnt, S., Becker-Emden, E.-C., 2020. Raising the quality of calcium silicate units with simultaneous reduction of production costs using Statistical Design of Experiments (DoE). ZKG INTERNATIONAL ISSUE 3, S. 35–42
  • Salah Uddin, K.M., Middendorf, B., 2019: Reactivity of different crystalline surfaces of C3S during early hydration by the atomistic approach. Materials 2019, 12(9), 1514;
  • Singh, N.B., Middendorf, B., 2020.Geopolymers as an alternative to Portland cement: An overview. Construction and Building Materials 237 (2020) 117455.
  • Schleiting, M., Wetzel, A., Krooß, P., Thiemicke, J., Niendorf, T., Middendorf, B., Fehling, E., 2020. Functional microfibre reinforced ultra-high performance concrete (FMF-UHPC). Cement and Concrete Research 130, 105993.
  • Umbach, C., Middendorf, B., 2019. 3D structural analysis of construction materials using high resolution computed tomography. Materials Today: Proceedings 2019, 356–563.
  • Middendorf, B., Schade, T., Kraus, K., 2019. Quantitative Analysis of Historic Mortars by Digital Image Analysis of Thin Sections. Restoration of Buildings and Monuments 23, 83–92.
  • Scheffler, B., Wetzel, A., Sälzer, P., Middendorf, B., 2019. Regenerated cellulosic fibers to enhance the stability under cyclic thermal stress. Beton- und Stahlbetonbau / Concrete and Reinforced Concrete Structures 114, 674–682.
  • Arend, J., Wetzel, A., Middendorf, B., 201 In-situ investigation of superplasticizers: From fluorescence microscopy to concrete rheology. Cement and Concrete Research 2018, 178–185.
  • Middendorf, B., Umbach, C., Wetzel, A., 2018. Multi-functional Concretes for Structural Wall Elements. Materials Today: Proceedings 2018, 15236 – 15242.
  • Singh, N.B., Middendorf, B., 2008. Chemistry of blended Portland cements; part 1: Natural pozzolanas, fly ashes and granulated blast-furnace slags. Cement International 4, 76–91.
  • Middendorf, B., Singh, N.B., 2009. Chemistry of blended Portland cements; part 2: silica fume, metakaolin, reactive ash from agricultural wastes, inert materials and non-Portland blended cements. Cement International, 78–93.


  • Guest professorship at Hainan University (Haikou, China) (2017)
  • Award: Appreciation for Excellent Work in Solid State Materials and life member of the Society for Indian Association of Solid State Chemists and Allied Scientists (ISCAS) (2015)
  • “Premio Nacional CITMA 2005 Gold Medal” – for the successful scientific collaboration with the Cuban research group of Prof. Martirena (Santa Clara, Cuba) on Sustainable Building Materials. This award is considered Cuba’s most prestigious award. (2006)
  • Guest Professorship “Professor Titular Adjunto” from the Universidad Central de las Villas, Santa Clara, Cuba (2000)


[1]           DE 10 2018 107 926 A1 2019.10.10, Microfiber-reinforced high-performance concrete, University of Kassel; Niendorf, Kross, Middendorf, Wetzel.

[2]      DE 10 2018 100 850 A1 2019.07.1, Solid mass for the production of a thermally stable and cyclically stressable ultra-high-strength concrete or high-strength concrete component or an ultra-high-strength or high-strength concrete component, University of Kassel; Piotrowski, Wetzel, Middendorf, Feldmann

[3]      DE 10 2015 101 342 A1 2016.08.04, Earth line bedding material and earth line area, University of Kassel; Simon, Middendorf

[4] DE 10 2006 045 091 B4 2013.04.25, Method for the production of a cellular concrete as well as cellular concretes produced according to the method; Middendorf, Just

[5] DE 103 32 491 A1 2005.02.17, Concrete mixture of aggregates and additives and cement for a high-strength, in particular ultra-high-strength concrete as well as concrete plant with a concrete mixture of aggregates and additives and cement, University of Kassel; Schmidt, Middendorf, Bornemann, Teichmann, Geisenhanslük


Prof. Dr. rer. nat. Bernhard Middendorf

Telefon: +49 (0)561 804 2662

Universität Kassel
Fachbereich Bauingenieur- und Umweltingenieurwesen
Institut für Konstruktiven Ingenieurbau
Fachgebiet Werkstoffe des Bauwesens und Bauchemie
Mönchebergstr. 7
34125 Kassel

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