Welcome to the official website of the EU Horizon 2020 project (No: 101029471)
"DigiMat"

Digital fabrication and integration of Material reuse for environmentally friendly cementitious composite building blocks

About Our Project
The emergence of green and eco-friendly resources, coupled with demands for advanced digital technologies for conceptual structures/designs, are causing changes in the scale and distribution of the construction industry. The increasing resource constraints that the EU is facing strongly affect its competitiveness and the quality of life of individuals. Important gains in resource efficiency can be made by replacing current linear economic models with circular models of production and consumption, which results, at the same time, in a substantial reduction of greenhouse gas emissions. This project combine multidisciplinary efforts from various subject areas and innovative technology of 3D printing to design and develop an environmentally friendly cementitious feedstock driven from construction/demolition waste and industrial by-products suitable for the manufacturing of structural load-bearing building blocks.
Meet our team
Learn about our team members involved in the project
  • Dr. Mehdi Chougan
    Individual Fellow

    Dr. Mehdi Chougan is a Marie Skłodowska-Curie Research Fellow at Brunel University London, Department of Civil and Environmental Engineering. Dr Chougan obtained his PhD in “Graphene-engineered cementitious composites” from the University of Rome “Tor Vergata”, Italy, in 2019. After the PhD completion, he worked as a postdoctoral research associate on “High-Performance Compressed Straw Board (HPCSB): A New Generation of Building Materials” project funded by the Engineering and Physical Sciences Research Council (EPSRC) at Brunel University London.

    He is an outstanding young researcher in the field of cementitious composite materials, especially in graphene-engineered cementitious composites and additive manufacturing of alkali-activated cementitious composites. His research focuses on three areas: (i) the design and optimisation of 3D printable alkali-activated materials (AAM) and manufacturing strategies, with the aim to enhance the sustainability and productivity of the construction industry. Key topics concern the inclusion of different types of additives, including graphene-based materials, nano clay, and fibres, focusing on rheology modifications and performance optimisation. (ii) Bio-based composites, such as lightweight compressed strawboard (CSB) for the construction industry. (iii) the design and optimisation of low-carbon concrete using cement and natural aggregate replacement procedures to reduce concrete's carbon footprint. Some of his research works have been published in prestigious journals such as Materials and Design, Industrial Crops and Products, Journal of building engineering, etc.

  • Prof. Seyed Ghaffar
    Project Supervisor

    Professor Ghaffar is a Chartered Civil Engineer and a Fellow Member of the Institution of Civil Engineers (CEng, FICE), a Member of the Institute of Concrete Technology (MICT), and a Fellow of the Higher Education Academy (FHEA).

    As the founder and director of the 'Additive Manufacturing Technology in Construction' (AMTC) research centre, he has played a pivotal role in shaping its mission. AMTC's primary focus lies in using low carbon materials and valorising construction and demolition waste through the application of materials science and 3D printing, aligning with the circular economy goals of sustainable construction.

    Throughout his career, he has been both the principal and co-investigator of research grants exceeding £2 million, sourced from national entities such as EPSRC, British Council, and EU funding bodies like H2020 and ERDF. The outcomes of these projects have been disseminated through more than 75 journals and conference publications since 2013.

  • Brunel University London
    Beneficiary Institution

    Brunel University London is a renowned institution that has earned its reputation as a world-class center for research and innovation. One of the key strengths of the university is its ability to attract and host Marie Curie fellows, who are some of the most talented and promising researchers from around the globe. The university's research programs have been recognized with the European Commission's HR Excellence in research accreditation, which acknowledges its commitment to providing a supportive and stimulating environment for researchers to learn and grow. This accreditation is a testament to Brunel University's dedication to providing the highest quality training and resources to its research community, and to ensuring that its researchers are equipped with the skills and knowledge needed to make a meaningful impact in their fields of study.

News and events
Updates on research project
  • Kick-Off Meeting
    02.01.2022
    The DigiMAt project started on January 1st, 2022, with an official kick-off meeting. During the meeting, the team developed a research plan for the project's first phase while also discussing potential research collaborations with academic and industrial partners.
  • First printing session
    08.02.2022
    The first printing session of the project marked a significant milestone, representing the realization of extensive planning and collaborative efforts. The event unfolded in a carefully orchestrated manner, with the team overseeing the production process from conception to execution.
  • DigiMat is going forward
    20.02.2022
    DigiMat is poised to advance robustly into the future, fueled by the momentum generated during its inaugural phases. With a solid foundation in place and a dedicated team, its trajectory is marked by resilience and a clear vision, ensuring a strong and successful journey ahead.
  • Expanding the size of our concrete printer
    10.03.2022
    Expanding the size of our concrete printer involves a comprehensive engineering effort, requiring the redesign and scaling of critical components. This includes upgrading the extrusion system, enhancing the stability of the frame structure, and optimizing the control software to accommodate larger print volumes. The goal is to harness technological advancements and innovative design to create a larger, more capable concrete printer that can address a broader range of construction projects with increased precision and speed.
  • UK construction week, London
    03.05.2022
    The future of concrete printing in the UK construction sector appears promising, with a growing emphasis on innovative construction methods. As the technology continues to evolve, we anticipate an increased integration of concrete printing in mainstream construction projects, offering faster and more cost-effective solutions. The potential for sustainable building practices, reduced material waste, and enhanced design flexibility positions concrete printing as a transformative force in the UK construction industry, paving the way for more efficient and environmentally conscious building processes in the coming years.
  • Speech at CIVILMEET 2022, Munich, Germany
    23.05.2022
    Dr. Mehdi Chougan has participated in CIVILMEET 2022 Conference on CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING in Munich, Germany as a keynote speaker.
  • Speech at 27th ETRA conference
    01.06.2022
    Dr. Mehdi Chougan has participated in 27th ETRA Conference on tyre recycling in Brussels, Belgium and gave speech entitled: A comparison between alkali-activated materials and Portland cement-based composites incorporating recycled tyre aggregates
  • Visiting Betotest Polska company, Szczecin, Poland
    22.07.2022
    Dr. Mehdi Chougan has visited the Betotest Polska company, Szczecin, Poland- 22 July 2022 and discussed the sustainable low-carbon cementitious composites: advances in testing methods and technology.
  • Speech at International seminar on sustainable building materials
    21.07.2022
    Dr. Mehdi Chougan has participated in International seminar on sustainable building materials, Szczecin, Poland- 21 July 2022 as a keynote speaker and presented his work on "3D printing of cement-free construction materials using nano additives as rheology modifier"
  • Reporting DigiMat's progress
    01.11.2022
    Dr. Mehdi Chougan reported the project's latest progress at the Civil Engineering Department seminar at Brunel University of London.
  • Secondment at West Pomeranian University of technology
    18.11.2022
    Dr. Mehdi Chougan has started the project's secondment at the West Pomeranian University of technology, Poland.
  • Visitors from University of Rome Sapienza
    07.02.2023
    Thrilled to welcome scholars from the secondment organization, University of Rome Sapienza. Their rich academic background promises to enrich our collaborative efforts, bringing diverse perspectives and expertise to our academic community. Excited for the positive contributions and cross-cultural exchange ahead.
  • London Construction Week
    02.05.2023
Publications
  • 1
    Effect of natural and calcined halloysite clay minerals as low-cost additives on the performance of 3D-printed alkali-activated materials
    Mehdi Chougan, Seyed Hamidreza Ghaffar, Behzad Nematollahi, Pawel Sikora, Tobias Dorn, Dietmar Stephan, Abdulrahman Albar, Mazen J Al-Kheetan. (2022). Materials and Design, doi: https://doi.org/10.1016/j.matdes.2022.111183
  • 2
    Recycled brick aggregates in one-part alkali-activated materials: Impact on 3D printing performance and material properties
    Yazeed A. Al-Noaimat, Mehdi Chougan, Mazen J. Al-Kheetan, Szymon Skibicki, Karol Federowicz, Marcin Hoffman, Daniel Sibera, Krzysztof Cendrowski, Mateusz Techman, João Nuno Pacheco, Sang-Yeop Chung, Pawel Sikora, Seyed Hamidreza Ghaffar. (2023). Developments in the Built Environment, doi: https://doi.org/10.1016/j.dibe.2023.100248
  • 3
    Mechanical and physical characteristics of alkali- activated mortars incorporated with recycled polyvinyl chloride and rubber aggregates
    Eslam El-Seidy, Matteo Sambucci, Mehdi Chougan, Mazen J Al-Kheetan, Ilario Biblioteca, Marco Valente, Seyed Hamidreza Ghaffar. (2022). Journal of Building Engineering, doi: https://doi.org/10.1016/j.jobe.2022.105043
  • 4
    Lightweight alkali-activated materials and ordinary Portland cement composites using recycled polyvinyl chloride and waste glass aggregates to fully replace natural sand
    Eslam El-Seidy, Mehdi Chougan, Matteo Sambucci, Mazen J. Al-Kheetan, Marco Valente, Seyed Hamidreza Ghaffar. (2023). Construction & Building Materials, doi: https://doi.org/10.1016/j.conbuildmat.2023.130399
  • 5
    Upcycling end-of-life bricks in high-performance one-part alkali-activated materials
    Yazeed A. Al-Noaimat, Mehdi Chougan, Mazen J Al-kheetan, Marcus H. N. Yio, Hong S. Wong, Seyed Hamidreza Ghaffar. (2023). Developments in the Built Environment, doi: https://doi.org/10.1016/j.dibe.2023.100231
  • 6
    Alkali activated materials with recycled unplasticised polyvinyl chloride aggregates for sand replacement
    Eslam El-Seidy, Matteo Sambucci, Mehdi Chougan, Yazeed A. AI-Noaimat, Mazen J. Al-Kheetan, Ilario Biblioteca, Marco Valente, Seyed Hamidreza Ghaffar. (2023). Construction & Building Materials, doi: https://doi.org/10.1016/j.conbuildmat.2023.134188
  • 7
    The impact of waste brick and geo-cement aggregates as sand replacement on the mechanical and durability properties of alkali–activated mortar composites
    Eslam El-Seidy, Mehdi Chougan, Yazeed A. AI-Noaimat, Mazen J. Al-Kheetan, Seyed Hamidreza Ghaffar. (2024). Results in Engineering, doi: https://doi.org/10.1016/j.rineng.2024.101797

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