MEETING OF THE INTERNATIONAL SCIENTIFIC BOARD

On 24 – 27 September 2019, the last International Scientific Board of the AdMaS Center was held. The scientists, led by the director, welcomed the board members who came to us from all over Europe: Dr. Andrea Giuseppe Capodaglio from the Italian University of Pavia, Prof. Dr. Ing. Harald Garrecht from the University of Stuttgart, Ass. Prof. Dr. Alfred Strauss from the University of Natural Resources and Life Sciences Vienna and Prof. Dr. Humberto Salazar Amorium Varum from Universidade do Porto.

During their stay, the professors took part in the celebrations of the 120th anniversary of the foundation of the Faculty of Civil Engineering and the evening performance Night at Karlštejn in the Brno City Theater.

Both the AdMaS Center and the Faculty held meetings with individual research groups for two days, whose representatives presented their achievements and ideas for 2019.

Towards the end of the week, the staff of the Center said goodbye to the professors and thanked them for their support, motivation and very friendly yet professional relationships.

FOREIGN TRAINERS IN THE ADMAS ROAD LABORATORY

In August we welcomed 2 foreign trainees to the road laboratory of the AdMaS Research Center.

On August 6, 2019 arrived first student, Arnaud Chuter from France, who is studying civil engineering at EI.CESI University in Angoulême (https://angouleme.cesi.fr/ecoles-formations). Arnaud’s specialization is traffic construction and will stay here until October 25, 2019.

The second student is Riko Sakuda, who came from Japan thanks to the IAESTE organization. Riko is studying at Yokohama National University (Yokohama National University – https://www.ynu.ac.jp/english/) and will be here till mid-October. Her main specialization is urban communications and urban infrastructure.

Both students are very active and have been involved in research activities both at the AdMaS Center and the Institute of Roads. They are also cooperating on solving partial tasks within current research projects. One of them is a project of the Technology Agency of the Czech Republic TH04020154 entitled: “Optimization of the construction, repair and operation of asphalt-concrete sealing cladding”. So far we are very satisfied with both students.

Arnaud Chuter already participated in excursion to the mixing plant in Rajhradice, where he assisted in the sampling of aggregates. In the months of September and October, further professional excursions to cooperating companies or directly to the road construction are planned. Last but not least, there is a plan for a joint discussion of students of the 2nd year of the Master’s program with a focus on traffic constructions.

PROF. YUZO OBARA VISITED INSTITUTE OF STRUCTURAL MECHANICS AND ADMAS CENTER

The research group Mathematical Modeling succesfully cooperated with the Institute of Geonics AS CR, specifically with Dr. Leona Vavro and Dr. Martin Vavro, and on 19 September 2019 welcomed an important expert in the field of rock fracture testing, prof. Yuzo Obaru, from Japanese Kumamoto University.

It was on the day of the 120th anniversary of BUT that prof. Obara presented a lecture in the STM Institute and then visited the AdMaS Center in the afternoon. In the lecture “Crack Front Geometry and Stress Intensity Factor of Semi-Circular Bend Specimens with Straight Through and Cracked Chevron Notches” he presented his team’s current results in experiments as well as numerical analysis of the influence of voltage initiator concentrator on stress intensity factor .

By the way, prof. Y. Obara used to be a Director of GeoX CT Center and a Vice-Dean of Faculty of Engineering of Kumamoto University, which also celebrated  120th anniversary of its founding in year 2017. The visit organized Prof. Zbyněk Keršner, Assoc. Stanislav Seitl and Dr. Hana Šimonová.

The picture from the AdMaS area depicts prof. Z. Keršner, prof. Obaru, Dr. L. Vavro and Dr. M. Vavro. Ing. Lucia Osuska from the research group Technology of Building Materials in an eye-catching presentation of the center’s research.

PREPARATION OF CEMENT CHIPBOARD TEST BODIES CONTAINING ALTERNATIVE RAW MATERIALS

On September 4, 2019, within the ongoing cooperation of the AdMaS Center with CIDEM Hranice, a.s. test specimens of cement-bonded particleboards were prepared and subsequently tested with respect to the assessment of physical-mechanical parameters (bulk density, strength characteristics and flexural modulus), microstructure and combustion heat analysis.

The bodies were manufactured in laboratory. Significantly modified formulas were used for the production of plates, with a view to achieving lower bulk density and improving fire resistance while maintaining minimum standard requirements for utility properties.

Modification of the composition of cement-bonded particleboards was carried out by substitution of primary components (up to 50%) with alternative raw materials (heating slag, waste perlite and dust formed as a by-product during the processing of cement-bonded particleboards).

EXCURSION TO THE ADMAS CENTER IN COOPERATION WITH THE YOUNG ENERGY EUROPE PROJECT

On September 4, 2019, an excursion of participants in the energetics course took place in the AdMaS Center. The course’s target group are young employees under 35 years of age. During different courses they learn how to uncover energy saving reserves, optimize processes or implement energy-saving measures in the company, thereby contribute to better climate protection.

The organizer of the event, the Czech-German Chamber of Commerce and Industry, chose the AdMaS Center not only with regard to its current activities in the area, but also to the technical and technological background of the Center. Supervisors of the EGAR Research Group, Dr. Tomáš Chorazy, Dr. Miroslav Čekon, Dr. Jakub Raček and Ing. Kristýna Velikovská, gradually presented the activities of the center in the field of alternative energy use, eg. Selected technologies and construction elements of buildings leading to energy independence, Gray water recycling for reuse and Recovery of thermal energy from waste water. With respect to the presented topics, there was also an excursion in the AdMaS center and demonstration of individual technologies. The activities of the individual research groups were briefly presented, with an emphasis on the possibilities of comprehensive solutions to problems in the field of construction and resource utilization.

The excursion at the AdMaS Center took place as a practical part of the training in the Young Energy Europe project. This is funded through the European Climate Protection Initiative (EUKI). EUKI is a financial instrument of the Federal Ministry of the Environment, Nature Conservation and Nuclear Safety (BMU). The main objective of the EUKI is cooperation within the European Union that will support the reduction of greenhouse gas emissions and intensify dialogue and exchange of knowledge and experience within Europe under the Paris Agreement.

EXPERIMENTAL VERIFICATION OF LIQUID SOIL REUSE

  

In the summer, the staff of the MBM Research Group (Dr. Černý and Dr. Michalčíková) carried out one of a series of verification experiments of the newly developed liquefied earth utilization technology for self-compacting toppings under real conditions of residential house construction in Brno.

It was about filling the segment of the excavation with the original soil in liquefied form. The technology allows the use of less suitable soils and is gentle on stored installations, which perfectly bypasses. The installation does not have to be complicated to fill and soil is no longer required to be compacted.

Four days after the dressing, the grout was evaluated for homogeneity, moisture, load-bearing capacity and samples were taken to verify the basic parameters that reached the original soil compaction values.

ROAD REPAIRS IN CZECH REPUBLIC

Prof. Ing. Jan Kudrna, CCs, spoke in a Czech Television report about the reason for eight-hour working hours on road and highway construction sites.

The session was broadcast on June 13, 2019 in Events in the Regions and in the Main News.

The whole report can be seen at:

https://ct24.ceskatelevize.cz/domaci/2841905-rozkopane-ulice-kolony-a-stavebni-stroje-stoji-delnici-v-brne-konci-s-praci-odpoledne?fbclid=IwAR04lbmz6WVbGCZvrpV2Oqiux8gKCRn5DohRrbUu5dSo0FlTNaO2q7Sj1BM

FIELD TRAINING

On the 28.5. – 5.6.2019, the traditional Field Training has been held in Staré Město pod Sněžníkem, which is intended for all students of the 3rd year of the bachelor’s degree in the field of Constructions and Traffic Structures.

Teaching is organized by the Institute of Railway Structures and Constructions in cooperation with the Institute of Roads and with the assistance of other institutes of the Faculty of Civil Engineering at Brno University of Technology. Also some researchers from the AdMaS Center participated in the lessons.

In the course of the training, the center equipment was used – the KRAB, measuring trolley, which is used to measure the geometrical parameters of the track (eg track gauge, elevation, mixture and track height). The students also took part in an excursion to the Dlouhé Stráně pumped-storage hydroelectric power station where diagnostics of the tank shell condition was underway. Prof. Kudrna was able to acquaint students with the details regarding the construction of the tank shell and the asphalt mixes used here.

EXCURSION FROM SECONDARY SCHOOL OF CIVIL ENGINEERING

On Wednesday, June 5th, 2019, an excursion from the Secondary School of Civil Engineering in Brno took place in the AdMaS Center.
The center was visited by over 70 third-year students with a pedagogical accompaniment and went through both Laboratories of Road Testing  at P1 building and then through Laboratory of Geotechnics and Laboratory of Geodesy at P4 building.
Due to an excellent interpretation of the AdMaS staff, visitors were well introduced to the ongoing experiments, techniques and equipment of the center.

VISITING THE SEALING SHELL OF DAM AT DLOUHÉ STRÁNĚ 

Researchers from the AdMaS Center, led by prof. Kudrna together with prof. Šťastník,  diagnosed the sealing shell of the tank at Dlouhé Stráně on June 3, 2019. This tank serves as part of the Dlouhé Stráně pumped-storage hydro power plant. The tank shell is made up of asphalt layers and there are present faults on the shell surface.

On that day, the entire tank was drained and it was possible to get to the bottom itself. A visual inspection of the current condition was carried out on site and the locations of the core drilling sites to be investigated were indicated. This event was part of the project of the Technology Agency of the Czech Republic TH04020154 entitled: “Optimization of construction, repairs and operation of asphalt-concrete sealing shells”.