Void filling reduces noise and vibration problems – biogas plant
Challenge
Voids beneath concrete slabs at a biogas plant caused noise and vibration issues, affecting operational performance and raising concerns about long‑term structural support.
Solution
Geobear delivered precision geopolymer injection to fill voids, stabilise slabs and improve load transfer, reducing vibration quickly without interrupting plant operations.
Vibration reduced
Operational performance improved
Voids filled
Continuous slab support restored
No operational downtime
Works completed in live environment
Background
Industrial facilities such as biogas plants rely on stable floor slabs to support heavy machinery and rotating equipment.
Loss of sub‑base support due to voiding can result in rocking slabs, increased vibration and excessive noise, impacting efficiency and asset longevity.
Traditional slab replacement can be disruptive and costly.
Challenge
Voids beneath sections of the plant floor had led to noticeable vibration and noise during operation.
The client required a fast, low‑intrusion solution to restore support and reduce operational disturbance without halting production.
Solutions
Geobear carried out a targeted geopolymer injection programme beneath the affected slab areas.
The expanding resin filled cavities, densified weak soils and re‑established full contact between slab and sub‑base.
Injection was carefully controlled to eliminate movement without over‑lifting.
Results
Noise and vibration levels were significantly reduced, restoring stable operating conditions.
The plant remained fully operational throughout, and the solution provided a durable, cost‑effective alternative to slab replacement.
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