International Conference on Building Materials

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We kindly invite you to 21st ibausil in Weimar, Germany.
You may find all necessary information on this website.

By establishing the International Conference on Building Materials ibausil in 1964, an international forum for the exchange of scientific views was created. One aim of the conference has always been
to bring together science and building practice in Europe’s geographical centre. 

As in the previous years, the main emphasis of the lectures is put on challenges of developing and
applying building materials, accompanied by an exhibition of products and technologies.

In 1999, Weimar was crowned as Europe’s City of Culture. The city and ist surroundings are famous for many sights and attractions. Weimar’s cultural heritage and contemporary art create an incomparable and unique flair for all participants of the conference. We guarantee you a pleasant and worthwhile stay.

Conference Languages

The conference languages are German and English. Simultaneous interpreting from German to
English and vice versa will be provided in the main auditorium only.


You may find the full programme here: 


Main topics

Here you will find the complete overview of the main topics of the conference.

1 Inorganic binders
2 Concrete and durability of concrete
3 Functionalisation of building materials
4 Wall, ceiling and ground building materials
5 Recycling

Cultural Programme

13 September 2023 | 7:30 pm: Welcome Dinner
14 September 2023 | 7:30 pm: Get Together at Kasseturm
15 September 2023 | 3:30 pm: Guided City Tours

Funding partner:





congress centrum weimarhalle
Unesco-Platz 1 | 99423 Weimar, Germany


By car

Parking facilities:
Car park Weimarhalle
Car park Atrium
Car park Rollplatz
Car park An der Hauptpost
Car park Hermann-Brill-Platz

By train:
Bus stops
Goetheplatz/ Zentrum (buses 5 and 8)
Schwanseestraße/ Stadtverwaltung (buses 1 to 8)


Even in late summer, Weimar is very popular among tourists from all over the world.
We would advise you to book a hotel room as soon as possible.