Historic House Re-supported with Teretek

As the pipeline was being replaced, significant voids and cavities were encountered. If left untreated, there was a risk of further voiding and structural instability. Voids were identified at ground level under the garage slab, and also at basement level under the stone paving slabs and behind the basement walls. Mainmark was contracted to address the weak ground. Mainmark’s Teretek® resin injection was identified as the optimum solution for this project.

It was important that the residents of the property were not disturbed by the works, and that the treatment and application was fast and reliable. The proposed methodology must allow for the cluster of power, gas, water and drainage services entering the building within the treatment zone.

Injection took place from within the building, at basement level, and from within the garage, at ground level. The material expands on delivery to the target depth, strengthening the ground and filling the voids with minimal disruption. Injection continued until voids were filled and structural elements supported, as confirmed by a sustained increment of lift along the treatment zone. All resin mixing and power generation equipment was contained in works vehicles, allowing for efficient and tidy site operations. The project was successfully completed in just one day. Mainmark’s methods ensured that neither the tenants or owners were inconvenienced and the structure was fully supported, removing the risk of future damage.