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A set of trusted information in the form of material passports is necessary in order to understand the circular value of systems and materials in the built environment. Innovations such as digital technologies and material passports are useful circular economy transitional tools in managing the materials flows and decarbonizing the built environment. Material ppassports are datasets and reliable information consisting of the entire value chain—specifications of the materials used, and specific supply chains involved from the sources to producers, distributors and consumers or users; and technical facts to improve the re-use or recycling of materials and to enhance their residual value. This paper presents the material passports in the built environment for the transition towards a circular economy as well as the latest trends in research and practice.
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