Logo der 21. Internationalen Baustofftagung 2021

21. ibausil from 22nd to 24th September 2021

We would like to invite you to the 21st International Conference on Building Materials ibausil in Weimar from 22 to 24 September 2021 to the congress center weimarhalle.

General Remarks


You are cordially invited to the zur 21st ibausil in Weimar.
Here we collected all informations for you.

Conference languages

The conference languages are German and English. There will be a simultaneous interpreting in German-English as well as English-German in the main auditorium.

Conference fee

The conference fee will probably amount to 700 €. This fee will be reduced for presenters (but not for co-authors) by about 15 %.

Information for Authors

Registration of presentations

The lecture registration takes place exclusively online. Plese use following link:

Conference documents

All accepted papers and posters will be published on a data medium.
For this we provide you with the hints and samples (PDF|DOC).

Important Dates

21st ibausil


deadline for abstract submission

01.11.2020   T

Early registration for exhibition due

01.11.2020   T

Early registration for attendees

01.11.2020   T 

Notification for abstract acceptance

31.01.2021   O


31.03.2021   O

final paper submission

30.06.2021   T

deadline for conference registration

30.06.2021   T

payment for participation due

30.06.2021   T

Participation confirmation

right after registration O

O  =  organizing office activities
P   =  participants activities

Registration for conference

You will be able to register online for the conference.
The link will be made available to you here.

Cancellation policies

A processing fee of 250,00 € will be charged for cancellations after 30th June 2021.
A refund will not be granted after the 31st August 2021.

Separate Registration

Participants, who are

  • plenary or main lecturer
  • lecturer or
  • presenting a poster

Please >>contact us seperatly! We would be happy to help you.

Call for papers - Registration

Authors are invited to submit an abstract by using the form on the official ibausil website (www.ibausil.de) until November 1st, 2020. Each speaker should submit only one paper, but coauthorship on other papers is possible and welcome. The conference committee will decide on the acceptance of the papers and will notify the authors by January 31, 2021. The accepted papers will be published on USB-Stick. For this purpose, full papers have to be submitted to the organizing office by June 30, 2021.

Programme of the Conference

The conference will start on September 22nd, 2021 at 9:00 am.


From spring 2021 we will make the PROGRAMME available to you here.

Social Programme

In addition to the conference programme, we invite you to take part in guided tours and a conference dinner. More informations you will find here in spring 2021: SOCIAL PROGRAMME

Main topics of the conference

The main topics of the conference are grouped according to materials and will deal with problems of both basic research and applied science, ranging from new buildings and revitalisation to the preservation of monuments. Methodologically-oriented contributions (production engineering, ecology, ensuring of quality, test methods and test processings, assessments of actual building state, effects of admixtures, additives and aggregates) should therefore be classified according to application.

1  Inorganic binders
10 Cement production process
11 Type of cements and cement properties
12 Cement hydration
13 Effect of admixtures
14 Binders and materials on the base of calcium sulphate
15 special binders for defined applications
16 Alternative low-CO2 binder

2  Concretes and Durability of concrete
20 Concrete and aggregates
21 High performance concrete
22 Self-compacting concrete and rheology
23 Fibre reinforced concrete and shotcrete
24 Pavement concrete
25 Polymer cement mortars and polymer cement concrete
26 Concrete Admixtures
27 Alkali-silica reaction
28 Sulphate attack
29 Freeze-thaw and freeze-deicing-salt attack and other exposures 

3  Walling materials / Construction maintenance / Recycling
30 Building protection and maintenance
31 Ashlar / natural stone masonry
32 Building ceramics
33 Calcium-silicate brick and C-S-H-insulating materials
34 Light-weight concrete and autoclaved aerated concrete
35 Mortar, plaster mortar and floor screed materials
36 Adhesives / binding materials and filling compounds
37 Recycling of building materials

Journey and hotel list

Venue of the conference

congress centrum weimarhalle

How to get to Weimar

Map of Weimar

Description of the route


We you will find a hotel list here in spring 2021.

The History of ibausil

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 researchers from universities and industrial enterprises, from the east and the west, together in the geographical centre of Europe.

As in the past, the main emphasis is put on problems of the development and application of building materials. An accompanying exhibition of products and procedures will also take place. In addition, the organizers intend to offer special excursions on the last day of the conference.

The variety of sights in and around Weimar and the impressive cultural heritage and contemporary works of art will make your stay in the "European city of culture 1999" pleasant and worthwhile.


F.A. Finger Institute for Building Material Engineering (FIB)
Bauhaus-Universität Weimar


Coudraystraße 11 B | 99423 Weimar
Phone +049 (0) 3643 58 47 55