Leveraging OpenBIM standards and information delivery specification (IDS) for digital validation in circular construction: reusing hollow core slabs

Purpose The study investigates how openBIM workflows can support standardised digital validation processes, aiding the transition towards circular construction. Specifically, it examines the use of the Information Delivery Specification (IDS) standard to validate Industry Foundation Classes (IFC) models for the reuse of precast hollow core slabs, in accordance with the Norwegian standard NS 3682:2022 Hollow Core Slabs for Reuse. Design/methodology/approach This study proposes an Automated Checking Compliance (ACC) method to verify the compliance of IFC models with reuse-driven information contents for precast hollow core slabs. To achieve this, the IDS standard was selected to develop and test an openBIM validation workflow. The methodology includes three main steps: (1) identifying the minimum set of information requirements derived primarily from NS 3682:2022; (2) implementing these as IDS specifications linked to IFC entities, and (3) applying the workflow to a case study of a precast hollow core slab modelled in Autodesk Revit and exported to IFC4x3. The validation is performed using the open-source Bonsai add-on for Blender, while a complementary buildingSMART Data Dictionary (bsDD) is developed to ensure semantic consistency and standardised property definitions. Findings The results confirm that IDS enables effective automation of compliance checking for data presence and structure within IFC models. The IDS-based workflow reliably identifies missing information, highlighting the specific objects that fail the validation. By aligning rule-based validation with recognised standards, the proposed approach supports quality assurance for the digital representation of reusable hollow core slabs. Furthermore, the study establishes a standardised, machine-readable database of reuse requirements. The approach can be adapted and applied to other building components, promoting interoperability and reliability in digital marketplaces for reclaimed materials. Research limitations/implications While the proposed ACC workflow guarantees consistency and completeness of digital information, it does not assess the correctness or validity of underlying physical test results and of the initial data entry, such as mechanical properties or service life parameters. The applicability of the approach also depends on the digital maturity of stakeholders and the completeness of IFC models. Broader applicability will require further harmonisation of reuse-related standards and increased awareness of information requirements. Practical implications The study illustrates how openBIM standards can be used within reuse-driven design and procurement processes through automated data validation. The combined use of IDS and bsDD enhances regulatory compliance, data transparency, and reliability of digital inventories of reclaimed components, lowering barriers to reuse, especially for small and medium enterprises. Originality/value This paper is among the first to apply the IDS framework to the context of building component reuse, translating reuse-oriented standards into machine-readable validation rules. It extends the use of openBIM standards from model verification to circular construction practices, supporting both digitalisation and sustainability efforts in the built environment. Specifically, the study contributes to improved interoperability and trust in digital marketplaces for reclaimed construction products.