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Steinau an der Straße, Germany

Gehlen C.,TU Munich | Kapteina G.,Ingenieurburo Schiessl Gehlen Sodeikat GmbH
Beton- und Stahlbetonbau | Year: 2012

Durability of Reinforced Concrete in Tunnels: Influence of Building Defects The present paper outlines the influence of deficiencies linked to reinforced concrete constructions on the durability. As requirements related to durability matters are in general defined by descriptive guidelines, the objective assessment of deficiencies and the dimensioning of necessary measures for retrofitting are hardly feasible. Whereas a definition of the durability of performance related requirements enables a new procedure to assess deficiencies more objectively. On this basis feasible measures can be chosen and dimensioned. In principle this introduced procedure can also be applied for the performance related assessment of the retrofitted structure. Copyright © 2012 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source


Sodeikat C.,Ingenieurburo Schiessl Gehlen Sodeikat GmbH
Beton- und Stahlbetonbau | Year: 2010

The determination of the water content in construction materials and in particular with regard to its depth and time dependent distribution is of high interest in the area of research, material development and condition assessment of structures. The assessment of the reason of damages mostly require to regard the moisture content of structures, because the moisture content basically affects material properties and the durability of structures. Recently moisture sensors have been used to control the functionality and durability of repair and protection measures. This enables the owner to carry out accurately timed measures to prevent damages due to the ingress of water and chlorides. Copyright © 2010 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source


Stengel T.,Ingenieurburo Schiessl Gehlen Sodeikat GmbH
CONCREEP 2015: Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures - Proceedings of the 10th International Conference on Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures | Year: 2015

The present paper gives an overview of creep data of UHPC and an appropriate creep function based on this data which was used to compute age-dependent relaxation spectra, i.e. Maxwell chain parameters. The relaxation spectra computed was validated with the help of cracking frame tests. The numerically obtained relaxation spectra enables mechanical studies of members made from UHPC taking into account the agedependent viscoelastic behavior. © ASCE. Source


Since the publication of the first version of the bulletin in 1990 half-cell potential measurement has been established as a standard test method to detect reinforcement corrosion. In 2014 a new version of the bulletin will be published. Some of the main differences with respect to the former versions will briefly be presented in this paper. Copyright © 2014 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source


Mayer T.F.,Ingenieurburo Schiessl Gehlen Sodeikat GmbH
Beton- und Stahlbetonbau | Year: 2014

For structures in direct contact with water, the construction of watertight concrete structures has over the past decades been established as a robust, efficient and economical alternative to constructions with an external waterproofing. Design and execution of watertight concrete structures in Germany is regulated by the DAfStb guideline on watertight concrete structures (WU-Richtlinie) This paper presents the fundamentals of the design of watertight concrete structures according to the WURichtlinie. © 2014 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Beton- und Stahlbetonbau Spezial. Source

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