The Role of Construction 3D Printing in Advancing Sustainability and Digitalization in Africa

Africa's rising population is increasing pressure on natural resources, resulting in biodiversity loss and affecting the ecosystem. Some African countries are promoting 3D Printing technologies to respond to the rising demand for affordable houses, allowing a more efficient use of natural resources, as well as reducing waste and environmental impacts. This paper gives a brief outline of the digitalization progress in some African countries, with a particular focus on the key role that 3D printing (3DP) can play in revolutionizing construction, converting it into a more sustainable and efficient one. This work also addresses the potential that new printable earthen-based material formulations can bring to foster sustainability and circularity in the built environment. Digitalization can be a major force in advancing Africa's economic development, assisting construction companies in enhancing productivity and efficiency, creating new job opportunities, and accelerating sustainable development goals. Moving forward towards Construction 4.0 will require a multifaceted strategy, including investing in education and training, getting government support, Industry-University collaborations, infrastructure development, establishing public–private partnerships, and fostering IT innovation and sustainability.