CEO & CAMO Ontologies: a circulation medium for materials in the construction industry

Elke Sauter, Rob Lemmens, Pieter Pauwels

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


This paper evaluates the potential of semantic technologies to facilitate building material circulation in the construction industry within the Circular Economy (CE) context. It suggests building material passports as a data source for the materials to be circulated and then integrates them by means of Linked Data. A common language is proposed to combine and re-use the material data in the CE with the creation of two ontologies: Circular Exchange Ontology (CEO) and the Circular Materials and Activities Ontology (CAMO). The ontologies annotate materials under a CE classification scheme and describe the elements required for material exchange to occur: actors, the activities they perform and the referents of these activities (resources, products, tools and waste). An evaluation of the ontologies is made by means of use case-driven SPARQL queries. Further, a wide-scale evaluation addresses how a decentralized data ecosystem can enable users to publish information and dynamically interact with different repositories to exchange materials. Results indicate that these ontologies can foster a circulation medium between diverse construction industry resources. Future work contemplates validation of both ontologies in a real-world-setting with computer scientists and companies in the construction sector in the Benelux area.
Original languageEnglish
Title of host publicationLife-Cycle analysis and assessment in civil engineering: towards an integrated vision
Subtitle of host publicationProceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)
EditorsRobby Caspeele, Luc Taerwe, Dan Frangopol
Place of PublicationLeiden
PublisherCRC Press/Balkema
Number of pages7
ISBN (Electronic)978-1-315-22891-4
ISBN (Print)978-1-138-62633-1
Publication statusPublished - 2018
Externally publishedYes
Event6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018 - Ghent, Belgium
Duration: 28 Oct 201831 Oct 2018
Conference number: 6

Publication series

NameLife-Cycle of Civil Engineering Systems
PublisherCRC Press


Conference6th International Symposium on Life-Cycle Civil Engineering, IALCCE 2018
Abbreviated titleIALCCE
Internet address


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