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Building materials technology

Concrete technology consulting and material modeling

Our activities in the field of building materials technology encompass a wide range of consultation services and investigations for cementitious building materials (especially structural concrete and mortar). They include the following:

  • Advice on the design of concrete mixes (especially special concretes, e.g. mass concrete, self-compacting concrete, high and ultra-high strength concrete, pavement concrete, hybrid fibre concrete, lightweight concrete, autoclaved aerated concrete, slipform concrete, concrete for hydraulic applications) as well as the choice of concrete mix constituents (e.g. packing density calculation, gradation optimization)
  • Advice on mixing technology and plant production of concrete elements
  • Assistance with and performance of quality control tests for fresh and hardened concrete (e.g. fibre content test, thermo cube for estimating the heat of hydration)
  • Estimation of input values for structural design based on laboratory testing (e.g. compressive strength, creep coefficient, shrinkage coefficient, coefficient of thermal expansion, bonding stresses)
  • Investigation and assessment of damage to concrete elements (e.g. freeze-thaw deicing salt damage, microstructural degradation by dissolving or expansive attack in, for example, wastewater facilities)
  • Calculation of temperature evolution in concrete elements due to hydration heat taking thermal boundary conditions into account (FEMMASSE® Analysis)
  • Calculation of residual and restraint stresses taking into account time-dependent concrete properties and storage conditions (FEMMASSE® Analysis)
  • Advice on planning, tendering, and the execution of fair-faced concrete members.

 

Qualifications

E certificate for instruction in advanced concrete technology.

Contacts: Prof. Dr.-Ing. Christian Sodeikat and Prof. Dr.-Ing. Thorsten Stengel
Fabric load test
Twin-shaft mixer
[Translate to EN:] Betonage Kanalsohle
[Translate to EN:] Großbetonage

Publications

BerechnungMayer, T.; Schießl, P.; Gehlen, Ch.; Hecht, M.:
Regensburger Dom: Zur Instandsetzung des Südturmhelms.
In: Beton 7 & 8/2008, 58. Jhrg., Verlag Bau + Technik GmbH;
S. 342-344; ISSN 0005-9846;
Erkrath, 2008.

Schießl, P.; Gehlen, Ch.; Sodeikat, Ch.; Mayer, T.F.; Schießl-Pecka, A.:
Dauerhafter Konstruktionsbeton für Wasserbauwerke.
In: Betonkalender 2008; Band 1; Ernst & Sohn Verlag;
S. 1 - 88;
Berlin, 2007.

Sodeikat, Ch.:
Praxisgerechte Planung von Sichtbetonbauwerken.
In: Beton- und Stahlbetonbau 102 (2007), Heft 9, Verlag Ernst & Sohn;
S. 637-646; ISSN 0005-9900;
Berlin, 2007.

Sodeikat, Ch.:
Betone für spezielle Instandsetzungsmaßnahmen.
Beton-Seminar 2006 „Betoninstandsetzung Sonderbetone und Verstärkungen“;
Universität der Bundeswehr – Beton Marketing Süd GmbH;
Neubiberg, 2006.

Schießl, P.; Strehlein, D.:
Untersuchungen zu Farberscheinungen an Sichtbetonoberflächen.
Beitrag 2. Symposium Baustoffe und Bauwerkserhaltung, Universität Karlsruhe (TH); 17. März 2005;
In: Sichtbeton – Planen, Herstellen, Beurteilen; Universitätsverlag Karlsruhe;
S. 25 – 32; ISBN 3-937300-43-0;
Karlsruhe 2005.