ICCX Central Europe 2022 - Conference program

14 - 15 June 2022


14th June 2022 / Opening Session

10:00 - 10:30 Marcin Peterlik pl Poland Current situation and forecasts for the Central European concrete industry
10:30 - 11:00 Prof. Agnieszka J. Klemm pl United Kingdom Durability-enhanced cementitious composites: Superabsorbent Polymer as an effective shrinkage reducer
11:00 - 11:30 Dr. Wolfram Schmidt Germany Germany Innovative binders, circularity and recyclability – how the concrete industry can align with the GLOBE consensus
11:30 - 12:00 N.N 3D Concrete Printing in Poland


14th June 2022 / Precast Elements

14:00 - 14:30 Bartosz Dąbrowski pl Poland Modern precast technologies in housing construction: Optimisation of housing projects in Poland with the experience from Scandinavian countries.
14:30 - 15:00 Thomas Friedrich Germany Germany More prestressed elements with mobile prestressing bed
15:00 - 15:30 Maximilian Ettel M. Eng.,
Dipl.-Ing. (FH) Markus Tenwinkel
Germany Germany Mobile vehicle immobiliser BLOCKMAXX – square, practical, safe
15:30 - 16:00 Dr hab. inż. Marek Salamak pl Poland Digitalisation of construction processes for concrete structures and precast concrete elements



15th June 2022 / Concrete Technology

10:00 - 10:30 Magdalena Dobiszewska pl Poland Innovative cement composites with added basalt dust
10:30 - 11:00 Prof. Dr.-Ing. habil. Anette Müller Germany Germany Recycling of concrete – Differentiation according type of material and particle size
11:00 - 11:30 Dr. Stephan Hauser Germany Germany Ducon Overlay - High-performance concrete for strength and persistence
11:30 - 12:00 Dr.-Ing. Christian Baumert de Germany Sensor-based method for testing the sedimentation stability of modern concretes


15th June 2022 / Concrete Products

14:00 - 14:30 Piotr Nowicki Poland Poland Situation and development directions of the concrete paving stone industry in Central Europe
14:30 - 15:00 Dr. Alexander Wetzel Germany Germany Paving stones from 100% recycled raw materials
15:00 - 16:30 Dietmar Ulonska pl Germany Design and construction of conventional and permeable paving areas – fundamentals and practical examples from expert witnesses



Perspectives for the construction industry in Central Europe

Construction Business Unit Director at PMR. Expert in the construction and real estate market with almost 20 years of experience in the industry. He coordinates market analysis and monitoring, prepares market reports and participates in advisory projects, author of numerous studies prepared for the largest development and construction companies as well as commercial banks and industry associations. Prior to working for PMR, he managed the Research and Analysis Department at Emmerson Realty..  

Szymon Jungiewicz - Construction Business Unit Director at PMR, Poland

Roads and other private, public and commercial surfaces made from concrete

The constantly changing environment and increasing innovation pressure on project developers and architects when designing and engineering roads and other private, public and commercial surfaces are factors that call for the use of new material solutions. The solutions offered by Lafarge in Poland provide an answer to the requirements in the areas of durability, aesthetics, usability value, and adaptability when it comes to individual project prerequisites. Amongst these solutions, there are concretes for high-speed, long distance road surfaces boasting high usability and durability parameters, concretes for parking facilities and other private, public, and commercial surfaces, concretes for green areas, bicycle ways, and skate parks. We are using our technological know-how in the area of material properties to effectively support investments in projects of this nature. This entails that we will be actively participating in the entire investment process, ranging from the initial project concept to its ultimate construction and execution stages including all architectural management. The technological solutions offered for these tasks, including relevant examples for project support and execution will be elaborately presented at the ICCX.

Bogusław Lasek – graduate of the Faculty of Civil and Environmental Engineering at the Rzeszów University of Technology. Since 2003 he has been working in the field of production and distribution of construction products. He started to work at Lafarge in 2008 as a Concrete Technologist. Currently, he is responsible for technology and quality of concrete and aggregate in the Construction segment.  

Bogusław Lasek, Poland

Development and objectives of the European AAC industry

The European AAC is providing construction materials sufficient to build over 300,000 houses across Europe. In fact, AAC is the number one material used in wall construction.

We as EAACA (European Autoclaved Aerated Concrete Association) benefit from the success of our individual members. EAACA’s mission is to promote the interests of producers of AAC and their national associations across all of Europe. This includes both technical work and political action

The EU continues to develop more ambitious climate targets and environmental legislation. The European Commission will also continue to push forward its indicator framework assessing how sustainable building materials are. These developments will shape our future market and will have to be addressed jointly by AAC producers through EAACA.

Jos Cox is the President of EAACA (European Autoclaved Aerated Concrete Association). Since July 1, 2019 Mr. Jos Cox is responsible as Chief Operating Officer for Xella’s export business and has an advisory role regarding in the future of the North West European region. Prior to this job Jos Cox was CEO of the North West European region. He holds an MBA and studied civil engineer construction. Since 1976 Mr. Cox is active in the international building industry and since 36 years he is involved in the international Autoclaved Aerated Concrete industry.  

Jos Cox, Belgium

Efficient connection of reinforced concrete structures with autoclaved aerated concrete

The presentation discusses different ways of connecting load-bearing and non-load-bearing walls of autoclaved aerated concrete with reinforced concrete structure. The connection methods are described depending on the selected scheme of static wall support. The connections examples are presented in accordance with the European standards. The influence of the connection method on the cooperation of both structures is analysed.

A graduate of the Faculty of Civil Engineering of the Silesian University of Technology in Gliwice, specialization: Building and Engineering Structures. In 2004 he defended his doctoral thesis entitled: the Analysis of solid brick walls with reinforcement in supporting joints subjected to vertical loads, for which he received a distinction of the Minister of Infrastructure in the following year. In 2014, he received his postdoctoral degree (assistant professor) with honours. In December 2016, he was appointed associate professor at the Silesian University of Technology. Since 1997 he has been employed in the Building Structures Department of the Silesian University of Technology. In 2017, he became the head of the Chair.  

Dr hab. inż. Łukasz Drobiec, prof. P. Śl., Poland

Special visual and architectural requirements – further technological challenges in concrete surface shaping

Watching the trends in the Polish construction market and the higher activity of multi-family housing and public utility construction industry, the Mackiewicz company included reinforced precast concrete elements in its range of products. These are i.a. walls, staircase components, balconies and other individual customized solutions. To meet the expectations of architects, designers and investors, the company also decided to enhance their range with solutions enabled by the special concrete processing centre Maema. The paper will elaborate on the development of the company over the last 23 years and changes to the products offered. Continuous modernisation has often been motivated by attempts to match the product range to the market needs and expectations. In all their decisions and plans, the owners have always taken into consideration the Customer's needs. This strategy allowed the company to survive and grow in the tough and challenging market.

The company's future strategic plans involve large-size prefabrication both in the Polish and foreign markets.

About PPHU Mackiewicz (Manufacturing, Trade and Service Enterprise) Mackiewicz has conducted its operations in the Polish market since 1998. All along we have laid an extreme emphasis on the high quality of products. Our speciality is the manufacturing of ready-mixed concrete based on advanced technologies; we provide professional consulting services concerning the concrete grade and type selection as well as transportation to construction sites. Besides concrete, we also manufacture paving materials in a broad range of shapes and colours. In 2019 we launched another production plant which manufactures precast concrete elements. Our ambition is to manufacture solid ready-made concrete products with an aesthetic appearance and modern design.  

It’s the structure that counts: Sewerage systems made from steel reinforced concrete – engineering and manufacturing challenges and market introduction

To meet the challenge of sedimentation of solid particles in wastewater, structural elements in the bottoms of sewers and gravity pipelines have been found to be effective. In a research project carried out by IAB Weimar gGmbH, scientists have now succeeded in developing such elements and integrating them in DN 300 slot channels made from steel reinforced concrete used for zones with severe (D400) and even extremely severe (F900) burdens. The results of comprehensive investigations on flow and sedimentation behaviour carried out in the IAB test lab have shown that structured sewer channels, in comparison to smooth channels, have positive effects on the clearing behaviour even at low volume flow rates (~ 25 % of max work load).

Dr.-Ing. Rolf Lohse: 1998 to 2004 studied Process Engineering at the Technical University of Chemnitz; 2010 doctorate; 2004 to 2011 research associate at the Professorship of Technical Thermodynamics at the Technical University of Chemnitz; since October 2011 research associate at the Institute of Precast Technology and Precast Construction Weimar (now called the IAB – Institute of Applied Construction Research Weimar gGmbH) in the specialist area of simulation

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Rolf Lohse, Germany

Precast Buildings in Central Europe: Experiences from Hungary and Romania

After the fall of the communist system in the Central European countries (among others in Hungary and Romania) the precast concrete industry, that had been characterized by the mass production of functional, but less attractive buildings, took a turn. Beside the long span hall frame structures the residential usage of the precast elements became more and more important. The challenges of the building industry, e.g. the lack of human labor force could be solved by the development of new materials and structural systems. Among others these circumstances change the features of this branch.

Zsolt Kovacs (1991) MSc structural engineer, graduated BSc in 2013 at the Department of Structural Engineering, Budapest University of Technology and Economics, graduated MSc in 2016 at the Faculty of Civil Engineering, University of Stuttgart. R&D specialist by ASA Hungary since 2016. ASA CONS ROMANIA (Consolis Group) is a national leader in precast concrete elements for the heavy industrial building structures in Romania, 175 employees, and ASA EPITOIPARI KFT (Consolis Group) is a sister company in Hungary with the similar type of activity and same dimensions as the Romanian firm. This email address is being protected from spambots. You need JavaScript enabled to view it.

Zsolt Kovacs, Hungary

Quality assurance in the manufacturing of concrete units – this is how it works!

Concrete units are no longer square, practical and grey only. Their development results in products of ever higher quality, featuring a great variety of colours, shapes and surfaces. On account of the relatively long service life of concrete units, the reliable fulfilment of quality requirements becomes especially relevant. To be sure the manufactured units comply with all requirements, we need to have permanent control of all concrete product manufacturing stages.
The presentation defines the possibilities of permanent production control in a plant aimed at ensuring high quality of the concrete units supplied.

1982 – 1985 vocational education in the electronics specialist field completed with the matura exam; 1988 – 1993 studies at the Faculty of Electrical Engineering, major in technology of devices, specialisation in testing and measuring apparatus at the University of Applied Sciences Mittweida; 1994 – 1999 operations in the fields of aerodrome equipment, construction of machinery and special vehicles (mobile cranes); since 1999 – a researcher at IAB – Institut für Angewandte Bauforschung Weimar gGmbH (since 2012 – head of the measuring technology and automation department).

M.Sc. Markus Walter, Germany

Concrete in the tunnel construction

With the dynamically growing use of tunneling technologies in the transport infrastructure engineering, the production engineers responsible for designing the composition of concrete mixes as well as the engineers liable for their casting, face requirements unknown to the cubature or engineering structures construction. On that account, it is essential to understand the principles governing such structures as well as the desired properties of a concrete mix and cured concrete.

The presentation provides an overview of fundamental requirements for concrete mixes used in underground structures made with selected tunneling methods:

  • tunnels built using the cut-and-cover methods (in narrow or wide excavation),
  • tunnels built using the mining methods (with the blasting or mechanical technology),
  • tunnels built using the pipe roofing and hydraulic ramming methods,
  • tunnels bored with TBM machines (tunnel boring machines) or SM (shield machines).

Requirements for the following are also specified in detail:

  • concrete for the manufacture of tubing (precast tunnel lining) for the purposes of the Warsaw Metro Line 2
  • shotcrete used for the construction of a tunnel as part of the S7 road, at the Naprawa – Skomielna Biała segment



Michal Elert, Poland

Suspension mixing processes – potentials for concrete production

Mixing is one of the most important processes in the concrete production. A closer look at a mixing process is interesting because it represents the core of every concrete production where all fluctuations in concrete production flow together. This may be considered as a rea-son why modern material systems only found their way into industrial production in a few cas-es.

The presentation will show last research results on the influence of mixing processes on the concrete properties. A two-step mixing procedure will be presented in that binding material can be mixed separately in a process-favorable range.


Dipl.-Ing. Mirko Landmann, Germany

Optical Quality Control in Concrete Block Production

Concrete blocks are nowadays no longer simply square, grey and practical. A transformation has taken place. On streets and precincts as well as in public and private spaces, concrete blocks welcome us with a fullness of shapes, colours and surface structures. The concrete products employed within these environments are manufactured, handled and palletised in fully automated concrete production facilities. Human input is mostly limited to process and quality monitoring

Dr-Eng. Justus Lipowsky: From 10/1994 until 12/2001, Masters studies in process technology at Brandenburg University of Technology, Cottbus; 05/2002 until 09/2002, research associate at the Chair of Mechanical Process Engineering and Fluid Mechanics at Technical University Kaiserslautern; 10/2002 until 10/2009, research associate at the Chair of Mechanical Process Engineering of Martin Luther University (MLU) Halle-Wittenberg; from 03/2010, research associate at IAB – Weimar Institute of Applied Construction Research gGmbH specialising in particle simulation; 05/2013, doctorate at MLU Halle- Wittenberg on “Instationary Euler-Lagrange simulation of article-laden swirl flows”; since 07/2015, head of the IAB Process Technology Research Department This email address is being protected from spambots. You need JavaScript enabled to view it.

Justus Lipowsky, Germany

Extrusion-based Digital Construction: Opportunities and Challenges

The construction industry faces severe problems resulting from low productivity and increasing shortages of skilled labor. The purposeful digitalization and automation of all relevant stages, from design and planning to the actual construction process appears to be the only feasible solution to master these urgent challenges. Additive concrete construction has a high potential to be a key part of the solution. Selective layer-by-layer deposition by extrusion seems to be a clear favorite at this stage with respect to both overall technology readiness level and economic viability. The contribution at hand focuses on this approach with regard to targeted large-scale applications in mass construction. The aspects under consideration are: the requirements to fresh concrete and 3D-printer, the characterization methods of concrete to be printed, or already printed, in the fresh, hardening and hardened states, incorporation of reinforcement, avoiding “cold joints” between printed layers as well as producing overhangs and openings, to name just the major ones.

Univ.-Prof. Dr.-Ing. Viktor Mechtcherine studied civil engineering at the University for Civil Engineering and Architecture in St. Petersburg, Russia. Between 1986 and 1990 working in engineering consultancies. From 1992 research officer and since 1998 leading engineer and deputy manager of the Institute for Reinforced Concrete Construction at the University of Karlsruhe, Germany. From 2003 Professor and Chair of Construction Material Technology and Forensic Investigations at the Technical University Kaiserslautern. Since 2006 Director of the Institute and Professor for Construction Materials at the Technical University of Dresden, Germany. Bureau and Technical Activities Committee of RILEM, Chair of the RILEM TC RSC, Steering Committee of the fib Commission 8 „Concrete“, Advisory Board of IA-FraMCoS, Editorial Board of the Journal “Cement and Concrete Composites”, Editorial Advisory Committee of the Journal “Materials and Structures”.

Univ.-Prof. Dr.-Ing. Viktor Mechtcherine, Germany

Manufacturing of decorative precast concrete facades – the way from designing the material concept towards creating final solutions

Architectural concrete from the precast plant is on the up and the inner-city area, residential- and social buildings are characterized more and more by prefabricated facades. As their basis, concrete continually impresses with its great changeability and adaptability in terms of form, colour and structure. However, only in rare cases is it possible to reconcile the desire for aesthetic appeal and technical perfection with the financial constraints that often dominate the business of precast concrete companies. In the long run, this challenge can only be overcome if close multidisciplinary ties exist between the structural design, concrete technology, production and at-site assembling project phases.

Whereas the designer will be responsible to deliver the necessary calculations, the concrete engineer must provide robust industrial mix-designs along with the database of possible early- and late restraint values to be expected in manufacturing and use of the precast concrete elements. Therefore, the concrete engineer is basically dealing with the material interactions, workability, strength development, colour and durability of the concrete, but he or she don`t know, how the assembled elements will resist to their movement, formed due to shrinkage (drying, autogeneous) and temperature impact over the entire live-time of the used façade. This challenge must be solved by the designer who is doing so in tight collaboration with the engineering company.

The plant is the third and not the least decisive player in the team of creating beautiful and sustainable concrete facades which must fulfil all requirements with regards to appearance, load bearing capacity and durability. Hence, the authors will be showing by real projects both working directions, shaping the interaction of constituent materials in decorative precast concrete, while dealing with a holistic multidisciplinary manufacturing process – from realizing the designed structure systems over mould making, concreting, surface treatment until getting the elements properly assembled at construction site.

Prof. Dr. Jürgen Oecknick – 40 years of professional practice in the national and international building materials industry and as a university lecturer on the subject of building materials process technology & marketing; experience in the manufacture and distribution of cement, ready-mix concrete and concrete products; he has worked for Schwenk, Dornburger Zement, Holcim and others; special knowledge of the design and sales of construction cement, special binders, white and oil well cement. This email address is being protected from spambots. You need JavaScript enabled to view it.

Dipl.-Ing. Michael Erhardt - successfully completed a degree course in Civil Engineering at the University of Munich in 1999; after that he worked as a project manager in the field of architectural concrete, specialising in façades; since 2006 he has been Managing Partner Sales and Project Handling at Hemmerlein Ingenieurbau GmbH. This email address is being protected from spambots. You need JavaScript enabled to view it.


Composite walls (double walls) for residential and commercial buildings

Leier composite walls are large precast elements used to replace solid reinforced concrete partitions made on site. The precast element consists of two slabs with a thickness of 5.5 cm to 6.5 cm which are consolidated by means of trusses used as tying reinforcement. The reinforcement both fulfils a structural function and also provides the gap to maintain the desired wall thickness.

Advantages of composite walls

Precast walls provide a number of advantages for the construction process. The time required for the installation of precast elements and completion of all the necessary on-site works when erecting walls using the Leier technology is several times shorter than for a solid wall. It is possible to install up to 150 m2 of precast walls over a single day. The Leier technology eliminates the need for strenuous shuttering works to make openings on site. A partition made of precast elements demonstrates a high quality of the surface, which does not require any additional plastering.

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Krzysztof Kwiatkowski, Poland

How to grow the market share of precast housing structures in Baltic countries

Existing economic activity at residential building sector is slightly slowed down in Scandinavia markets recently and that made impact on competition in Baltic markets stronger for different building sectors as well as for producers of precast concrete. Due to previously mentioned competition rivalry Consolis Latvija has changed strategic approach towards key clients in order to grow precast portfolio share within their buildings. Therefore additional value added steps were taken to persuade clients to deal at different projects with precast producer. One year work led to first results and increase of precast share at top client’s portfolios. Practical examples and tips would be mentioned during presentation in order to explain precast market growth tendencies in Baltic countries.

Juris Baumanis, MBA
Head of Sales & Project Management, Consolis Latvija

Juris Baumanis, MBA, Latvia