ICCX DIGITAL 365. Live-Days - Conference Program


September Live days – Conference program will be shown here soon.


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ICCX DIGITAL 365. - On demand


Opening Session - Trends in concrete construction “Including a recorded Q&A Session”



J. Glaesle
Editor-in-Chief, opus C – Concrete Architecture & Design
de Germany

A perspective journey through contemporary precast concrete architecture

Boris Reyher

Dr. B. Reyher
Director Schlaich Bergermann und Partner

de Germany

Building with Infra-Lightweight Concrete - A Precast Solution

Hans Beushausen

Prof.-Dr. H. Beushausen
University of Cape Town, Department of Civil Engineering
South Africa South Africa

International developments aimed at increasing the sustainability of concrete


Dr. A. Minson
Concrete and Sustainable Construction Director, Global Cement and Concrete Association, UK
UK United Kingdom

Delivering a sustainable built environment: Concrete action by designers and producers


Americas-Session - All about precast “Including a recorded Q&A Session”



T. Hoff
P.E. American Concrete Pipe Association

Accelerated Precast Construction


D. McNutt
P.E. American Concrete Pipe Association

Manufacturing Methods – Reinforced Concrete Pipe

Manuel Lascarro

M.A. Lascarro
Executive Director, Colombian Chamber of Cement and Concrete PROCEMCO
be Colombia

Precast concrete industry in Latin America: Some developments


Autoclaved Aerated Concrete - Sustainable building material “Including a recorded Q&A Session”



Dr. C. Fudge
BSc DSc hon CEng FIStuctE FIMS
GB United Kingdom

AAC – Providing Sustainable Building Solutions


S. Malojer
Area Sales Manager at Progress Maschinen & Automation
de Italy

Customized reinforcement solutions for the AAC industry


R. Lackner
be Germany

BIM and AAC projects


3D Construction Printing - digitalisation in concrete construction “Including a recorded Q&A Session”


Lund Nielsen

H. Lund-Nielsen
MBA, Founder & GM, COBOD International A/S
Denmark Denmark

State of the Art of 3D printing of buildings and concrete structures

I. Comishin

I. Comishin
President, Twente Additive Manufacturing

Various applications examples and how 3DCP will change the concrete industry


V. Ruitinga
Founder Vertico 3D concrete printing
Netherlands The Netherlands

3D concrete printing vs. Precast

Alex Tuerk

A. Türk
CEO & Co-Founder, Aeditive GmbH
be Germany

3D Printing & Automation – Future Precast Manufacturing





Oliver Beckmann
R&D Engineer, Peikko Group
de Germany

Slim-floor composite beams in combination with hollow-core slabs in fire case


Christian Prilhofer
Prilhofer Consulting
de Germany

The Future of Automatic Production Plants


Stef Maas
Technical Director, FEBE
be Belgium

Historical development of Hollow Core slabs



Prof. Peter Mark
Ruhr-University Bochum
be Germany

Adaptive modular construction methods for serial production


Paul Schötzigk
Concrete technologist, Sonocrete
be Germany

Ultrasound assisted concrete production


Dr. Andreas Roye
de Germany

Digitization powered by light transmitting concrete


Eugene Korch
Institute of Façade Engineering
gb United Kingdom

Precast Facades for Compliance

A perspective journey through contemporary precast concrete architecture

Hardly any other building material is in such demand by architects and is more diverse in use than concrete. This is once again reflected in contemporary architecture. The material that was mostly used previously for construction, has since become an architectural statement of the surface, that emphasises its message selfconfidently both visually and haptically. Concrete as a styling medium and design form of modern architecture is experiencing a true renaissance. Of course not just the aesthetes but also the technologists have taken on the material in the past few years. Concrete technological innovations and developments pave the way for a new exciting future. 3D-printing and divers digital methods, self-compacting and ultrahigh- performance concretes promise sculptural and filigree constructions and an architecture that could not be built in the past. Glass fiber and textile reinforced or even translucent concrete open up the range of possibilities that concrete architecture offers the planners nowadays. The presentation takes you on a rush journey through current and progressive precast concrete architecture around the globe.
Juergen Glaesle, Editor-in-chief of opus C, Germany
Dipl.-Ing. Juergen Glaesle studied structural engineering and architecture in Stuttgart/Germany and Leeds/England. After his studies he worked in various engineering offices in England and Germany. Since 2002 he has been a journalist in the concrete sector, since 2005 as the Editor-in-chief of the professional magazine “opus C – Architektur & Design mit Beton” (Concrete Architecture & Design) for the German-speaking architectural community.

Building with infra-lightweight concrete – A precast solution

Many architects love exposed concrete. However, in buildings intended for permanent human habitation, they encounter a particular challenge: monolithic facades made of normal concrete and lightweight concrete usually do not meet the high requirements for thermal insulation without thermal insulation. If a thermal insulation layer is installed on the facade, the concrete disappears behind it: No exposed concrete. Another disadvantage of such two-layer facade systems: Concrete is eminently recyclable, but only if it is free of all non-mineral constituents. Infra-lightweight concrete offers the monolithic solution. Infra-lightweight concrete is a high-performance concrete, which promises durable, sustainable and attractive buildings due to its low dry density as load-bearing thermal insulation. Monolithic structures made of exposed concrete can once again meet economic and ecological requirements. Infra-Lightweight concrete opens new ways to “Baukultur” and the design appropriate to the material. Several projects have been built successfully– now it’s time for precast.
Dr. B. Reyher, Director Schlaich Bergermann und Partner, Germany
Boris Reyher has been working as a Structural Engineer with sbp since 2007, where he has directed the Berlin office since 2010 and was appointed to Associate in 2014. Before that, he worked for Buro Happold in England, after finishing his doctoral thesis in numerical mechanics at the Technische Universität Berlin. He studied civil engineering at TU Berlin and the University of Michigan at Ann Arbor. His focus is on bridge construction as well as steel, concrete and membrane constructions for buildings, in particular research and application of infra-lightweight concrete.

International developments aimed at increasing the sustainability of concrete

Increasingly, sustainability is moving into the focus of international research on concrete technology. Among the most practically relevant current developments are those related to binder technology, the use of recycled fine and coarse aggregates, and durability design of concrete structures. The development of modern binder types involves substituting higher proportions of cement clinker with supplementary cementitious material. However, the current approach of using slag and fly ash is reaching its limits due to lack of sufficient and sustainable sources of these materials. Alternative low-CO2 and low-cost approaches are being investigated with the most promising strategy entailing the partial substitution of Portland cement clinker by the combined addition of calcined kaolinite clay and limestone. Concerning recycled aggregates, research into production methods and pre-treatment of aggregates is expected to significantly improve the technical properties of these materials and consequently increase their acceptance for industrial concrete manufacture. The presentation will discuss these developments and evaluate the expected impact on the production of precast concrete. In addition, it is argued that the superior durability properties of precast elements should be better utilized in the production and marketing of sustainable concrete.
Prof.-Dr. Hans Beushausen, Department of Civil Engineering, University of Cape Town, South Africa
Hans Beushausen is Professor in the Department of Civil Engineering at the University of Cape Town. He is a member of the Concrete Materials & Structural Integrity Research Unit, which focuses on infrastructure performance and renewal research. His research fields include concrete durability (material aspects, durability testing, durability design and specification), performance assessment of concrete structures, repair systems for concrete structures, and bonded concrete overlays. His interests further include precast concrete technology and he is editor of the magazine Concrete Plant International.

Delivering a sustainable built environment: Concrete action by designers and producers

The imperative of action on sustainability, with specific focus on climate change and biodiversity, is increasingly understood by all involved in the lifecycle of concrete. The members of the Global Cement and Concrete Association have made a climate ambition statement for carbon neutral concrete by 2050 and will launch a whole life cycle roadmap in late 2021. This builds on over 19% reductions in CO2 emissions since 1990, and recognises that the industry needs to accelerate action. The Roadmap will include a clear plan for linking the technologies, strategies, policies and levers required to achieve carbon neutral concrete by 2050. It takes a circular economy approach by taking into account emissions reduction in clinker, cement and concrete production, reduced demand through promoting design, material and construction efficiencies and improved standards and lifetime extension of whole concrete structures. The roadmap will require action by those who produce concrete and those who design with it..
Dr Andrew Minson, Concrete and Sustainable Construction Director, Global Cement and Concrete Association, UK
Andrew is originally from Australia and after graduation went to Oxford to do his doctorate. He worked for international engineering consultancy ARUP for 10 years working on projects around the world, before joining The Concrete Centre in the UK. He is now GCCA Director of Concrete and Sustainable Construction, and responsible for the GCCA Roadmap Process for Carbon Neutral Concrete by 2050.

Accelerated Precast Construction

Accelerated Precast Construction (APC) is a concept intended to help Engineers and their clients finish major infrastructure projects in a short period of time using precast concrete drainage products. APC allows a contractor to replace an existing conventional bridge with precast boxes or pipe at an accelerated pace, often achieving completion in a matter of days rather than months. This course will provide the basics concepts as well as several case studies that display the wide range of possibilities of accelerated precast placement.
Trygve W. Hoff, P.E. American Concrete Pipe Association, USA
Tryg is the Northeast Region Engineer for the American Concrete Pipe Association (ACPA). Tryg graduated with a BS in Civil Engineering from The Ohio State University and his professional experience ranges from environmental consulting in Ohio, to architectural engineering in beautiful Lake Tahoe, California. Tryg lives near Madison, Virginia, at the edge of the Blue Ridge mountains with his wife, Brooks, on a small 40-acre horse farm. Tryg has been promoting resilient infrastructure with the ACPA since 2012.

Manufacturing Methods – Reinforced Concrete Pipe

This presentation will cover the basics of reinforced concrete pipe production. Information covered will include concrete mix designs, batching concrete, and pipe reinforcing cages. The discussion will then shift to discussing three manufacturing methods, Wet Cast production, Dry Cast vibratory method, and then the Dry Cast packerhead method. The presentation will end with a brief discussion on concrete curing.
Donald E. McNutt, P.E. American Concrete Pipe Association, USA
Don has over 35 years of experience in the precast industry as a quality control manager, production engineer, design engineer, engineering manager and chief operating officer. He holds a Bachelor of Science in Civil Engineering from The University of Cincinnati and is a licensed Professional Engineer in the state of Ohio. Don is the Great Lakes Region Engineer for the American Concrete Pipe Association.

CarbiCrete: The Cement-Free, Carbon-Negative Concrete Solution

Concrete is the most widely used substance on Earth after water. But it is, of course, made with cement. What is less known is that cement production is responsible for 8% of the world’s greenhouse gas emissions. CarbiCrete, a Montreal-based carbon removal technology company, has developed a way to make precast concrete products without using any cement, replacing it with an industrial by-product. What’s more, the patented process removes more CO2 than it emits, making it carbon-negative. The process can be implemented easily in any precast concrete plant, has lower material costs than cement-based concrete and better mechanical and durability properties. CarbiCrete is licensing its technology to precast concrete makers.
Chris Stern, CEO of CarbiCrete, Canada
Chris Stern is the CEO of CarbiCrete, a carbon removal technology company that is commercializing a process to produce cement-free, carbon-negative concrete. He co-founded the firm in 2016. A mechanical engineer with 20 years’ experience in capex sales and business development in pharmaceutical packaging equipment, automotive machining and the entire solar manufacturing and deployment segment, Chris was a co-founder of Pure Energies, a residential solar power developer. In five years, Pure Energies grew into a firm with 200 employees in Toronto and San Francisco. In 2014, Pure was acquired by NRG Energy, after which Chris started a consulting business focusing on tech start-ups and strategy development in cleantech.

Precast concrete industry in Latin America: Some developments

In Latin America and the Caribbean, the traditional form of construction and the level of informality of the economy, has made the total percentage of cement consumed in industrial uses - such as ready-mix concrete or precast - relatively low compared to other parts of the world. In this presentation, the Ibero-American Federation of Ready-Mix Concrete will focus on analyzing the panorama of the precast concrete industry in the region and will comment on some of the specific initiatives that companies in the area have been working on for the positioning of technology in both housing and infrastructure construction.
Manuel Lascarro, Executive Director, Colombian Chamber of Cement and Concrete PROCEMCO
Manuel Lascarro has industrial engineer degree from the Pontificia Universidad Javeriana at Bogotá (Colombia) and he is also a Master in Management and Private Financing of Projects and Concessions from Centro Superior de Arquitectura-Universidad San Pablo CEU of Madrid (Spain). He has been linked to the cement and concrete sector for 25 years, currently being the Executive Director of the Ibero-American Federation of Ready-Mix Concrete and CEO of the Colombian Chamber of Cement and Concrete PROCEMCO where he has been working with the precast industry of the region. He is an Honorary Member of the Board of Directors of the National Ready Mixed Concrete Association of the USA and is one of the few Latin Americans who have been members of the Board of Directors of ASTM International, where he was awarded for his outstanding and sustained commitment to advance in the recognition of ASTM standards to improve the health, safety, quality, sustainability and economics of concrete construction in Latin America. Within his career, he has participated in different initiatives related to the industrialization, competitiveness and sustainability of the cement and concrete industries, including the creation of the Concrete Sustainability Council and its operation for the region. In his career, he has been a lecturer in more than 50 events held in the US, Europe, the Arab Emirates, Turkey, Singapore, China and in the vast majority of Latin American countries.

AAC – Providing Sustainable Building Solutions

AAC is a material of choice for sustainable construction. Strong but lightweight and easy-to-use, for outdoor and indoor purposes, it is made from naturally occurring materials that can be found in abundance. This presentation focuses on how AAC can be used to provide sustainable low energy homes and buildings, using the materials inherent properties of thermal insulation, airtightness, durability, fire resistance and thermal mass. AAC is used in many different formats from cavity to solid walls using masonry units and reinforced elements and components. Recent innovations include products that can be used to refurbish existing buildings. AAC can also make a positive contribution during its lifetime by taking CO2 out of the environment in use. In addition, the material has important characteristics associated with end of building life that can make a positive benefit to the Life Cycle Analysis and Circular Economy.
Dr Clifford Fudge BSc DSc hon CEng FIStuctE FIMS
Clifford Fudge is a Chartered Structural Engineer and was until recently Group Innovation Manager for H+H International AS (manufacturers of AAC masonry products), and Technical Director of H+H UK Limited overseeing R&D, technical support services and marketing. His current role is as Director of External Affairs. He is Vice President of EAACA, the European AAC Association, Chairman of the European Masonry Alliance and Past President of the International Masonry Society. His 38 years of service with H+H UK Limited has resulted in a wide- ranging experience with AAC masonry and precast concrete products, both in their design, production and their applications.

Customized reinforcement solutions for the AAC industry

Development and realization of innovative reinforcement solutions can be very beneficial for AAC producers. With various degrees of automation reinforcement machinery can be tailored to specific customer requirements. In addition to an overview of the different possibilities the presentation showcases a highly automated project.
Stephan Malojer, Area Sales Manager at Progress Maschinen & Automation, Italy
Stephan Malojer is international sales manager at Progress Machinery and Automation. His expertise is centered on reinforcement automation for the precast and AAC industry.

Design and Construction of Reinforced Autoclaved Aerated Concrete Buildings: From Seismic Resistance to Future Challenges

Autoclaved Aerated Concrete (AAC) is commonly used for infill walls of frame buildings. AAC is sometimes used in unreinforced masonry structures as load bearing elements, however the use of reinforced AAC panel products attract much less attention in this regard, since panels are mostly preferred for slabs and partitions in building construction. This study summarizes the results of the recent work conducted to investigate the seismic performance of reinforced AAC wall panel structures based on the seismic tests and dynamic simulations. The Turkish Earthquake Code (TEC) appears to be one of the few seismic codes placing emphasis on the seismic design of AAC buildings. Hence, the general design considerations of the AAC building design according to the TEC are summarized. A critical overview on future challenges for AAC is discussed in light of other building material alternatives and recent technologies such as concrete printing.
Prof. Dr. Baris Binici, Middle East Technical University, Turkey
Prof. Dr. Baris Binici obtained his B.Sc. Degree in Civil Engineering at Middle East Technical University and completed his M.Sc. and Ph.D. degrees from The University of Texas at Austin. He joined to Middle East Technical University as a faculty member in 2003. His research interests are in the area of structural and earthquake engineering, reinforced concrete design and modeling, seismic testing and simulations. He has over 200 international publications and worked as a consultant for seismic testing, analysis, and design of structures over 50 projects.

BIM and AAC projects

How can BIM help in AAC projects? This presentation shows a design to build workflow for an AAC project with the support of the BIM method. We will see how to exchange building models in an Open BIM project with the IFC-format or in a Closed BIM with the native Revit format. Split walls, floors and roofs into reinforced AAC panels. Perform the static calculation to get the reinforcement for each typical panel and generate reports for it. Create a site plan and a part list with each panel. Upload the site plan and the IFC-model with the panels to the cloud. Client can make a clash detection with this model and his own model and give approval for production. At the end we define the transport stacks of the panels according to the installation sequence.
Reinhard Lackner, CEO of IDAT GmbH, Germany
Reinhard Lackner studied computer science at the Technical University Vienna. Since 1990 he is CEO at the German based company IDAT where he is mainly responsible for the development of CAD/BIM and ERP software for the Precast Concrete and AAC Industry. He held several lessons about precast software at the Autodesk University in Las Vegas. He has a lot of experience in implementation of CAD/BIM software in design departments. Since 2016 he is part of the IFC4precast project group which defines a new model exchange standard for the precast industry under the head of the buildingSMART International.

State of the Art of 3D printing of buildings and concrete structures

The last years, the media has been filled with stories about new start-ups 3D printing an entire building in less than 1 day. The stories in the press have made the interest for 3D printing buildings explode with millions of downloads of the videos announced. The stories are fueling peoples hope for making buildings cheaper and for finally solving the need for affordable housing. More and more 3D printed buildings are popping up around the world and more and more precast plants are also starting to use the technology, but we have not yet seen a large scale application of the technology yet.

So what is the real truth here ? Can buildings be 3D printed in 24 hours ? Is it all just hype, but if so what makes a company like GE invest in the technology now ? Will 3D construction printing finally disrupt the construction sector and create all the new possibilities promised ?

Henrik Lund-Nielsen, MBA, Founder & General Manager, COBOD International A/S
Henrik Lund-Nielsen is the founder and General Manager of COBOD International A/S, a globally leading company within 3D construction printing constantly making headlines in the construction and 3D printing press. COBOD among others 3D printed The BOD, the first building in Europe in 2017, sold the largest 3D construction printer in the world with a length of 27 meters to The Middle East and delivered the printers that 3D printed the first two and three story buildings in Europe, in Belgium and Germany respectively. Recently COBOD entered into a long term collaboration agreement with GE Renewable Energy and LafargeHolcim (the world largest cement and concrete manufacturer) for the 3D printing of record tall concrete windmill towers. In 2015-17, as the project manager for a government supported project, Henrik Lund-Nielsen led a 3 years research project into the global State of the Art of 3D construction. Henrik Lund-Nielsen is a frequent speaker on 3D printing and 3D construction printing in particular, where in 2020 was recognized as one of the 10 most influential executives within the entire 3D printing industry.

Various applications examples and how 3DCP will change the concrete industry

Twente Additive Manufacturing was founded in November of 2018 by Tim Brodesser, Jonathan Ladouceur, Adam Rumjahn, Jim Ziemlanski and Ian Comishin. All of the founders are operationally involved on a daily basis. They set out to build a company from scratch with a few goals in mind. As strong believers in digital manufacturing they felt they could influence the architectural world by bringing more automation to the build site and the factories of construction element suppliers. Freeform design is loose term used by architects to describe elements that are comprised using arcs, curves and otherwise non-rectilinear shapes and surfaces. The conventional building processes used today often make freeform design cost-prohibitive to most housing projects. Buildings that have compound curves in their walls and landscape elements can be much more easily created with robust concrete 3D printing equipment. Until now, most cities and towns have been covered in generic rectangular buildings which Twente hopes to change to include more creative and expressive living spaces.
Ian Comishin, President
Ian is a self-taught automation enthusiast who has been working in CNC and other digital fabrication process for more than 20 years. He has fulfilled the role of Operations Director or President of many different companies. He has a long background in implementing industrial machinery into new industries.

3D concrete printing vs. Precast

What advantages can 3D concrete printing bring to the construction industry? Is it better to print on site or in the factory? And - will it replace precasting? These questions will be explored and answered in this presentation. The advantages of 3D printing are becoming ever more apparent and it is a billion dollar industry. Now printing is entering the built environment and we are beginning to see the first real business cases emerge. There is no doubt that its advantages in terms of single-piece production will be competitive, the question is where does its advantage end.
Volker Ruitinga, Founder Vertico 3D concrete printing
Volker has previous experience in the automative industry and is passionate about 3D printing. In 2017 he founded Vertico concrete printing after having helped develop the technology with a consortium of companies and like minded individuals.

3D Printing & Automation – Future Precast Manufacturing

Precast manufacturers have been at the forefront of innovation in the concrete industry for decades, centralizing production to benefit from economies of scale, productizing and innovating concrete modules, and systemizing and automating manufacturing processes to the extent possible. With the rise of digital technologies and the accelerated development of a broad field of automation technologies for any step in the manufacturing process, technology becomes a key differentiator. Therefore an urgent need arises to decide on strategic and product differentiation as well as to enable these strategic decisions by an adequate technology roadmap. In his contribution to ICCX, Aeditive’s Alex Tuerk explores the role of automation technology and 3D printing at this strategic crossroad of the precast industry.
Alexander Türk
Having advised global technology leaders for more than 7 years, Alex Tuerk thinks strategically on how technology shapes industries. In his role as CEO of Aeditive he is in charge of all strategic and commercial aspects of the Hamburg-based startup. Aeditive provides automation solutions based on its proprietary Robotic Shotcrete Printing process. Its customers are European precast manufacturers who plan to deploy the solution to a broad range of concrete elements.

Admixture selection criteria for robust casting of flowable concrete

Water reducing agents do have the capacity to significantly enhance process and materials robustness in modern concrete casting and help facilitating more environmentally friendly, and sustainable concrete mixture compositions. However, their use adds additional complexity to the casting process. To date, water reducing agents are widely used in the industry, but there is little understanding how differently modified plasticizers can be applied to tailor specific properties of flowable concrete and to enhance the robustness. The talk will present the most fundamental parameters that are relevant to understand how plasticizing admixtures function and offers easy to handle decision making tools to improve concrete performance according to specific casting processes and environmental frameworks.

Slim-floor composite beams in combination with hollow-core slabs in fire case

Peikko, a leading global supplier of concrete connections, composite structures, and wind energy applications, has carried out a series of fire tests with its DELTABEAM® slim-floor composite beam supporting hollow-core slabs. This webinar will give an overview of the background, results, and conclusions of this sophisticated research project.

When designing a slab system comprising Deltabeam composite beams and prestressed hollow-core slabs (HCS) for the event of a fire, neither of these products’ current European design codes or product approvals cover the special issues “change of direct support situation” and “flexible support on a beam”. These issues arise from their combination when the steel bottom flange of the composite beam is heated, and the supporting beam is heavily bending from thermal exposure.

To assess these issues, Peikko has carried out a test program of single HCS unit shear tests and system fire tests. The tests with Deltabeam and hollow-core slabs suggest there is no flexible shear issue in the event of fire if the beam deflections are within certain boundaries, and that the shifted direct support model with straight tie reinforcement is safe.

The Future of Automatic Production Plants

The year 2020 was difficult for all of us. Thankfully, the housing sector remained unaffected and everyone involved had a very good year economically. Looking ahead, what can we expect from the future? We know that forecasting the future is always difficult, but we want to try anyway. After the Corona crisis is overcome and the uncertainties regarding jobs are reduced, everything should be on the rise again. According to this logic, investments should be made now to be prepared for the future. But the question is how? Modernising the existing system or building a new one?

Actually, it's easy if you look at the right parameters. There is only one parameter that you can have an influence on. That is the efficiency of production, i.e. the man-hours per m². Other parameters such as the prices for cement, steel or energy cannot be influenced or can only be partly influenced. The same applies to sales prices. Therefore, the focus of modernisation must be placed on efficiency.

Historical development of Hollow Core slabs

The idea to reduce the self-weight of concrete slabs by putting voids in the centre of the cross-section, dates to the beginning of the previous century. Several inventors from different countries applied for patents on various systems. The presentation provides an analysis of patents published during the first half of the 20th century, and on experiences from 1960 on. Patents usually offer a complex description of inventions (claims). Reconstructing the history of hollow core slabs based on these patents is a laborious but fascinating exercise. The presentation aims to give a historical overview as a starting point for further discussions.

DFG Priority Programme SPP 2187: Adaptive modular construction methods for serial production

Sustainable construction has to meet a wide range of requirements. It is necessary to use materials, finances and labour sparingly, to manage construction sites such that they create little disruption to others, and to create durable structures with long service lives. The aim of the Focus Programme (SPP) 2187 "Adaptive modular construction methods for serial production" is to develop methods of serial production for precast concrete elements that enable the shortest possible construction time. For this purpose, structures are divided into similar modules, which are prefabricated and subsequently assembled on site. It is important to monitor the development of the modules and provide thorough quality assurance, in order to ensure that no single part is missing and that no post-processing is necessary. The installation follows the concept of the digital twin and mirrors the basic digital model of the structure.

The German Research Foundation (DFG) has been funding the SPP since 2020. The programme is planned to run for six years and brings together around 60 researchers from the disciplines of structural engineering, production technology, building informatics and mathematics. Cross-disciplinary thinking and development is required.

Ultrasound assisted concrete production

Sonocrete is developing a new and innovative concrete mixing system with the support of Ultrasound (US). Ultrasound is widely used in various technical processes (from pharmaceutics to ceramic and fuel industry) to disperse suspensions and to control crystallization processes. The application of US in concrete production is investigated by the authors in the recent past. For this purpose, two different concretes were prepared and investigated. With US the hydration of Portland cement can be accelerated effectively, which results in significant higher compressive strengths and improved fresh concrete properties at early ages. 28-day compressive strengths and chemical composition are not affected by applying US.

It is shown that ultrasound assisted concrete mixing leads to strongly accelerated concrete hardening and thus, paves the way for reduction of cement content or heat treatment.

Digitization powered by light transmitting concrete

Light transmitting concrete has been invented by a Canadian engineer in the 1930ies. In those days, the combination of liquid concrete with glass bottles allowed the creation of „light transmitting concrete“ for the first time in history.

LUCEM, has realized more then 400 projects worldwide using both, natural and artificial light sources. The gathered knowledge allows nowadays a future-like design of walls, floors, facades, furniture and even landscaping products such as illuminated concrete paving. Due to individual high-power LED control in combination with self-developed Apps and Cloud-based software, LUCEM can provide digital displays with robust concrete surfaces and a detailed low-resolution display at the same time.

Main applications at the moment are typically entrance areas with individualized content (such as „your room is on 3rd floor“) but will soon be found in public space design, when a line will show you the perfect parking space or the fastest way to the train.

Precast Facades for Compliance

The same appearance of the facade can be achieved by more than one method of construction. The decision on how to build depends on the clients objective. It is quicker to build tall buildings in prefabricated unitised-facades. Masonry or ventilated rain-screen facades are cost-effective for low-rises. However, there is one parameter that is almost always on the side of precast concrete facade. It is compliance. Precast could be the clearest route of proving the compliance with the normative base in the UK. In his talk Eugene will go through several precast concrete facade case studies. For these buildings acoustic, fire-safety and condensation risks were managed best by the precast concrete.