On July 19, 2024, the Institute of Cement & Concrete(ICC) held a workshop on circularity in cement and concrete supply chains at the Olesereni Hotel, Nairobi. The event focused on using renewable and recyclable resources to make the construction industry more sustainable. Key attendees included Prof. Romanus Odhiambo Vice Chancellor, Meru University of Science & Technology, Dr. Joseph Mwiti-Director of the Institute of Cement & Concrete at Meru University of Science & Technology, Dr. Wolfram Schmidt- Dr. Wolfram Schmidt, Project Coordinator at BAM, Dr. Thomas Pfeiffer- SRH Berlin, University of Applied Sciences and Andrew Nyabuto-Cordinator(ICC).

Key Discussions and Outcomes

Introduction and Objectives:
Dr. Wolfram Schmidt introduced the Circular B-I/O project, emphasizing the need to improve concrete using bio-based resources and reduce clinker in cement to lower the construction sector’s carbon footprint. The project involves acquiring diverse bio-based materials, bundling them for construction use, and developing AI-supported decision systems to optimize sustainability. The concepts developed will be piloted at Meru University of Science & Technology(MUST) with plans for workshops, seminars, and conferences, including Rilem Week 2026 in Kenya.

Synergies and Partnerships:
Participants discussed potential collaborations. Dr. Wolfram highlighted the importance of networking with partners in Kenya, East Africa and globally to create synergies and effective partnerships.

Industry Insights:
Centre for Science and Technology Innovations (CSTI): Mrs. Cecilia Wandiga emphasized decarbonizing the construction sector and creating net-zero ecosystems. She advocated for industry metrics and financial support for new technologies.

Kenya Industrial Research and Development Institute (KIRDI): Dr. Kelvin Khisia discussed the circular supply chains for bio-based waste resources and proposed collaborations with various industries, highlighting the availability of biomass ash and other resources.

African Organisation for Standardisation – (ARSO): Mr. Immanuel Kirwa from ARSO stressed the need for standardizing new technologies and involving experts in formulating construction standards.

Community Engagement:
Northern Vision for Development: Ms. Zamzam Bonaya underscored the importance of involving communities and youth in projects, ensuring sustainable resource supplies.

Nation Media: Ms. Syovata Ndambuki highlighted the need to engage communities through storytelling, simple language articles and media collaboration.

Educational Initiatives:
Star Kids Initiative: Mr. Kamau Kanaya focused on mentoring underprivileged children and suggested creating a Construction Club to teach sustainability from an early age.

University of Nairobi: Mr. Hesbon Hayowa stressed considering non-scientific aspects like cost-benefit analysis and marketing new technologies in our research initiatives.

Project Impact:
Meru University of Science & Technology (MUST): Mr. Joshua Ntambura highlighted the project’s potential to utilize bio-based waste resources, improving concrete and reducing its carbon footprint.

United Nations Office for Project Services(UNOPS): Mr. Arnold emphasized engaging stakeholders in standards and regulations to benefit end-users.

Machakos University: Ms. Carol Mwende noted the low adoption of new technology, advocating for efforts to ensure future utilization of bio-based technologies.

The workshop concluded with Dr. Wolfram thanking the participants for their active engagement and emphasizing the importance of continued collaboration and innovation in the construction industry.

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