7th WTA Colloquium – Maintenance of Concrete Buildings - June 10th, 2022

Strategies for the Conservation of Historic Concrete Structures

Concrete heritage buildings from the 20th century are at risk, due to the absence of recognition of the historic values of these buildings as well as to the lack of knowledge of the specific characteristics of historic concrete structures. Frequently, solutions developed for repair of contemporary structures are applied to historic concrete buildings, resulting in interventions which are neither compatible nor durable.

The scope of the lectures ranges from the possibilities of new investigation methods and procedures of condition assessment, from the application of innovative materials to the use of heritage precast concrete elements. In addition, main results from relevant case studies are presented.

The Colloquium aims at providing building owners, employees from planning and engineering offices, construction companies, concrete experts, architects and representatives of authorities, with the latest developments in the field of conservation of concrete historic buildings, as resulting from practice and from international research projects.

On behalf of the organizing team, the members of WTA - International (TC5 Concrete) and of the
JPI-CH CONSECH20 project, we cordially invite you to the 7th Colloquium WTA - Strategies for the Conservation of Historic Concrete Buildings and Structures.

We are looking forward to meeting you in Delft!

Conference programme


Credentials and registration


Welcome and introduction
Dr. Barbara Lubelli, TU Delft
Prof. Dr. -Ing. Rolf Gieler, Chairman of WTA TC5 Concrete
Ingenieur- und Sachverständigenbüro, Fulda


Overview of the project CONSECH20: CONSErvation of 20th century concrete Cultural Heritage in urban changing environments
Dr. Christiana Nunes
ITAM, Prague


Innovative materials and techniques for the conservation of the 20th century concrete-based cultural heritage
Maria J. Mosquera, PhD
University of Cádiz


Coffee break


Textile reinforced concrete - Opportunities for the restoration of historical concrete structures
Univ.-Prof. Dr.-Ing. habil. Jeanette Orlowsky
Werkstoffe des Bauwesens, Technische Universität Dortmund


Challenges of pre-cast concrete heritage – Examples from the Netherlands
Dr.-Ing. Herdis Heinemann
TNO, Delft


Lunch break

During the lunch break two activities will be offered:
Demonstration on the Monument Diagnosis and Conservation System (MDCS)
Dott. Silvia Naldini, TU Delft

Guided tour through the Aula building
Dr. ir. Wido Quist, TU Delft


Surface Repair with Carbon Reinforced Concrete –practice examples
Dr.-Ing. Cynthia Morales Cruz
Leiterin Arbeitsgruppe „Erhaltung und Instandsetzung“
ibac - Institut für Baustoffforschung, RWTH Aachen University


UniversityReinforced concrete architectures of the first half of the 20th-century in Genoa, Italy
Prof. Dr. Giovanna Franco
University of Genova


Why is there a crack? Modern inspection methods for old concrete
Dr. Frank Lehmann
Materials Testing Institute University of Stuttgart


Coffee break


Good vs poor intervention practices on historic concrete structures The case of Cyprus
Dr. Antroula Georgiou
University of Cyprus


From theory to practice: Degradation patterns and conservation strategies in concrete buildings built until the 1960s in the Netherlands
Dr. Gabriel Pardo Redondo
TU Delft


Summary and conclusion
Dr. Barbara Lubelli
TU Delft



End of the event


Delft University of Technology
Aula Conference Centre
Collegezaal A
2628 CC Delft
The Netherlands


The registration/participation fee per person for the 7th WTA Colloquium – Maintenance of Concrete Buildings:

Guest                                             180,00 EUR
WTA member                                120,00 EUR
Student in initial training                20,00 EUR

A limited number of students from TU Delft can participate free of charge. Registration is required.

*Price includes catering during the Colloquium and lunch.


You will find the application form in the download box on the right.


International Association for Science and Technology of Building Maintenance and Monument Preservation – WTA International and the national group WTA NL-VL
TU Delft, Faculty of Architecture and the Built Environment, in collaboration with the JPI-CH Project CONSECH20

Scientific committee

Prof. Dr.-Ing. Rolf P. Gieler
Prof. Dr.-Ing. Dipl. Chem. Andrea Osburg
Dr. Barbara Lubelli
Dr. ir. Wido Quist


Susanne Schneider
Ingolstädter Straße 102
D-85276 Pfaffenhofen
Phone: +49 89 57 86 97-27
Fax:      +49 89 57 86 97-29

Dr. Barbara Lubelli
TU Delft

The main information about the conference on 10.06.2022 in Delft :


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