About us
C2CA (Concrete to Cement & Aggregates) Technology is a partnership between GBN Group and TU Delft that was created in 2016 as a spin-off from a European research project.
Meet the team
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Thomas Petithuguenin
CEO
A passionate advocate for industrial decarbonization, Thomas Petithuguenin is the first CEO of C2CA. With a background in environmental engineering and a career driving sustainability and innovation in corporates, Thomas brings a wealth of practical experience in industrial R&D and innovation.
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Martin Paterson
CCO & Head of Product
Martin Paterson stands as a visionary leader in the cement and concrete industry. Throughout his career, Martin has overseen small and large projects all over the world through his roles, most recently, as CEO at Christian Pfeiffer Maschinenfabrik GmbH, and also at FLSmidth A/S and IBAU HAMBURG.
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Dr Priya Perumal
CHIEF SCIENCE OFFICER
Priya comes to C2CA from the University of Oulu in Finland where she is an adjunct professor and senior researcher with a focus on upcycling industrial side-streams into sustainable construction materials. Priya is looking to bridge the worlds of academia and commerce.
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Thijs van de Winckel
TECHNICAL MANAGER
Thijs van de Winckel has worked as the lead technical project manager at C2CA since 2019. Thijs earned a MSc degree in Applied Earth Sciences from Delft University of Technology in 2008 and has developed specialisms in plant design, plant optimization, and project management, .
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Abraham Gebremariam
RESEARCHER
Abraham Gebremeriam has over 7 years in advanced study of sustainable cement and concrete, and has been the primary researcher on the C2CA core technologies for the last several years. Abraham is currently an assistant professor at TU Delft.
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Frank Rens
PROJECT LEADER
Frank Rens is a Project Manager at C2CA investor GBN with a specialization in Soil Remediation, Demolition and Residuals. He has real-world knowledge of virtually all of the technologies currently in use in the concrete recycling industry, and has been working with C2CA on a part-time basis for 7+ years.
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Michael T Green
Business Development Consultant
A long-time sales, marketing, and global business development exec, Michael has worked with many Pre-Series A start-ups to gain initial market traction, develop first go-to-market plan(s) and create the outlines of branding, messaging and partnering strategies.
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Willem Blaisse
CFO (AD INTERIM)
Willem Blaisse has previously held several interim corporate development executive & management roles in the mining and metal recycling industries. With an MSc in Mining Engineering, his diverse client base has included Rio Tinto, Blue Phoenix Group, IHC Mining, and Magsort.
Our story
Our mission is to create a completely closed concrete loop where end-of-life (EoL) concrete is 100% upcycled into drop-in sustainable materials.
The Challenges and Opportunities
Concrete, while essential to global infrastructure due to its affordability and superior properties, is also responsible for 8% of total global CO2 emissions, mainly due to cement production. With over 300 million tons of construction and demolition waste produced annually in Europe alone, the bulk being rubble, this problem is set to escalate as numerous post-war buildings reach their end-of-life.
However, these challenges present an unprecedented opportunity to revolutionize the industry. The potential to replace up to 900 million tpa of cement with recycled concrete fines exists, given that waste concrete has a 15-30% cement content.
Our Approach
C2CA Technology is upcycling waste concrete into drop-in substitutes for virgin cement, sand, and aggregates. This approach addresses both the overconsumption of natural resources and the CO2 emissions challenge. Our technological advancements have led to a circular supply chain, turning construction-use-demolition into a recycling process.
Timeline
Founded in 2016 by TU Delft and GBN, C2CA Technology has successfully demonstrated its technology in the field. Following a seed funding round in 2022 led by Chrysalix, C2CA achieved its first commercial milestone. Our full demo line was operational by 2023, processing 1000 tons of waste concrete.
Supervisory Board
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Eric van Roekel
CEO GBN GROUP
Eric is CEO of GBN, a pioneering Dutch recycling and engineering company and is a Board Member C2CA. Over more than 25 years, Erik’s career has spanned Sustainable Development, Waste, Innovation Management, Operations Management, and Coaching.
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Fred van Beuningen
Managing Partner Crysalix Venture Capital
The Managing Partner of Chyrsalix Venture Capital, Fred’s international industry experience spans Europe and Asia in sectors ranging from oil & gas, chemicals to packaging and logistics. Just prior to Chrysalix, he served as Corporate Director of Innovation at global chemicals company AkzoNobel.
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Carsten Lund
Independent Board Member
Carsten is Chairman of the Board of C2CA, a non-executive director of several other companies including Hasle Refractories AS (Chairman), Dall Energy, Dinex Group, and is on the supervisory board of the School of Chemical and Biomechanical Engineering of the Danish Technical University.
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Ronald Gelderblom
Observer, Investment Director at Delft Enterprises B.V.
Ronald Gelderblom works as Investment Director at Delft Enterprises. After obtaining his masters degree in Economics at the Erasmus University in Rotterdam, Ronald worked in various financial roles at international trading firm B&S Group.
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Peter Rem
Observer, Professor at TU Delft
Professor Peter Rem is the head of Resources & Recycling Section in the Faculty of Civil Engineering and Geosciences at Delft University of Technology. In 1986 he received his PhD degree in Physics and in 2011 he became full professor of Resources and Recycling.
