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2023 | September | 21st International Building Materials Conference "ibausil" in Weimar
The "ibausil" is an international conference in the field of materials research and takes place every 3 years in Weimar. After a break due to corona, it was now the first year that the conference could finally take place again in presence.
More than 600 visitors and speakers from 22 nations took part in the conference. The speakers' topics ranged from new building materials and cement chemistry to special applications, special binders and additive manufacturing.
A major focus was on low-emission construction, recycling of building materials and sustainability in general. There was also a company and poster exhibition.
The department was well represented by Prof. Bernhard Middendorf, Dr. Koch, Dr. Wetzel, Mr. Kosenko, Mr. Laabs, Ms. Link, Mr. Schleiting and Ms. Umbach. The lectures covered the current research results of the field such as the use of shape memory alloys, alkali-activated fiber concretes, recycling in the field of sand-lime bricks, superplasticizer adsorption, fracture behavior of lightweight concrete as well as mineral casting molds for aluminum castings.
The main lecture by Prof. Dr. Middendorf on "Functionalization of fiber-reinforced high-performance concretes by means of shape memory alloys" met with great interest.
Dr. Wetzel presented "Fiber-reinforced UHPC based on alkali-activated binders" - a cement-free and at the same time high-strength and durable building material.
Mr. Kosenko explained in his presentation "Spatially resolved in situ analyses of the adsorption behavior of different admixtures on binders" how fluorescence microscopy and permanent preparations can be used to study the interaction and adsorption of superplasticizers on different particles.
In his presentation "Improvement of theCO2 balance of sand-lime bricks by using sawdust as an optimization aggregate",Mr. Laabs impressively demonstrated how sawdust from sand-lime brick production could be successfully reintegrated into production as an aggregate.
In the presentation "Ultra-high performance alkali-activated slag as a reusable mold for light metal casting", Ms. Link presented reusable molds for aluminum casting made from alkali-activated binders.
In his presentation "Fibre reinforced ultra-high performance concrete - Rheology, fibre bond strength and flexural strength",Mr. Schleiting not only addressed the study of fibre bonding, but also showed how shape memory alloys could be implemented as fibre reinforcement in the future.
In her presentation "Fracture behavior of UHPC lightweight concrete - in situ investigations using µ-CT", Ms. Umbach presented her extensive investigations regarding the fracture mechanical understanding of ultra-high performance lightweight concrete.