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School stabilisation, geopolymer injection – clay shrinkage

Challenge

Clay shrinkage caused ground movement and structural cracking at a school building, requiring stabilisation to prevent further settlement without disrupting pupils and staff.

Solution

Geobear used precision geopolymer injection to strengthen shrinkable clay soils, fill voids and stabilise foundations quickly with minimal noise, excavation or school disruption.

Building stabilised

Movement halted and ground strengthened

Void filling completed

Shrinkage‑affected soils treated

Minimal disruption

Works undertaken during school operations

Background

Shrinkable clay soils can contract during dry conditions, leading to foundation movement and structural cracking.

Educational buildings require safe, stable environments with repair methods that minimise disruption to teaching activities.

Challenge

The school experienced foundation movement linked to clay shrinkage, resulting in visible cracking and concern over ongoing settlement.

Traditional underpinning would have been invasive, time‑consuming and disruptive in a live school environment.

Solutions

Geobear implemented a targeted geopolymer injection programme through small diameter access points adjacent to the affected foundations.

The expanding resin filled voids created by shrinkage and densified the surrounding soils, increasing bearing capacity and stabilising the structure.

Works were carefully monitored to ensure controlled ground improvement.

Results

The building was successfully stabilised within a short programme timeframe.

The solution prevented further movement, avoided major excavation and enabled the school to continue operating throughout the works.

Discuss your project with an expert

Don't let unstable ground put your business at risk. Our commercial team can provide a clear assessment and a fast, effective solution tailored to your operational needs.

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