Logi 2/1 Gatehouse,Tallinna Sadam
Can these roof slabs be reused?
A temporary gatehouse built in 2017 and located at the Port of Tallinn's A-Terminal. It is planned for demolition as part of the terminal's redevelopment.
However, because the building was completed only in 2017 and the roof structure has been protected from weather exposure, its concrete elements were considered strong candidates for reuse.
Location:
Logi 2/1, Tallinn
Building type:
Gatehouse
Built:
2017
Assessment scope:
16 roof slabs
The Re-X Scan was commissioned to evaluate the reuse potential of the roof's hollow-core concrete slabs. The assessment focused on verifying the condition, strength, and reinforcement of the elements to determine whether they could be safely recovered and used again.
Method and findings
The assessment combined visual inspections with non-destructive testing. Concrete strength was evaluated using Schmidt hammer testing, reinforcement was mapped using a Hilti PS300 Ferroscan, and the internal structure of the slabs was verified using ground-penetrating radar.
The roof consists of sixteen EP265 hollow-core concrete slabs spanning approximately 12 metres. Testing confirmed that the elements match the original design documentation and remain in good condition.
Concrete strength
Measured concrete strengths ranged between 44 and 58 MPa, indicating strong material performance and no signs of significant deterioration.
What happens next
Rather than being treated as demolition waste, the assessed roof slabs can now be safely recovered and reused. All assessed EP265 hollow-core roof slabs were found suitable for it, demonstrating that even temporary buildings can contain structural elements with significant residual value.
The findings further provide the information needed to plan dismantling, transport and storage.
Reinforcement
Scanning confirmed the original reinforcement layout, spacing, and dimensions. The detected reinforcement corresponds to the design documentation and is suitable for long-span structural applications.
Reuse potential
The assessed EP265 hollow-core slabs were found to be suitable for reuse. Their condition, structural properties, and relatively young age make them strong candidates for recovery and reuse.