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Latest news

Closing wall cracks in a heritage church

Following the 2011 Queensland floods, large visible cracks began to appear inside the heritage St John’s Anglican Church in the regional town of Dalby, despite no water having entered the building.

The cracks were symptomatic of damage to the 89-year-old Church’s foundations.

The flood had caused the underground aquifer (a body of saturated rock through which water moves easily) beneath the building to rise, and the foundations to move.

Repairing the foundations without breaking the windows

We used Uretek structural resin injection technology to lift the building in 1mm increments, while closely monitoring changes in real-time to ensure the Church was successfully re-levelled.

Once the Church’s wall cracks were minimised, a team of specialist heritage plasterers matched the original plaster and repaired visible cracks in the Church’s interior.

How does it work?

Resin injection technology works like keyhole surgery. It involves drilling small holes into the ground below the existing foundation and injecting proprietary expanding structural Uretek resins. The resins expand to fill cavities and crevices in the soil, forming a strong base.

Because resin injection does not require excavation, it’s clean, fast and cost-effective (unlike traditional concrete underpinning methods).

A great result

According to Arthur Martin of Martin Building Design, who managed the project, “Mainmark* was the only reliable option for this project, with sound referrals from local engineers and a solid reputation in ground engineering.

“In addition to successfully re-levelling the Church, the Mainmark team was great to work with and very experienced.”

Mainmark
Since 1989, Mainmark has led the industry for re-levelling, ground improvement and void-filling solutions, developing and delivering the most advanced and accurate solutions on more than 82,000 projects globally.
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