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Pipe Abandonment & Decommissioning


Abandoned pipelines can create serious safety hazards and environmental problems.

An abandoned pipe effectively creates an underground void, which can cause subsidence, soil destabilisation, and water ingress. This can increase the risk of residual fluids leaking into public areas and the ground collapsing.

In the interest of public safety and satisfying legal requirements, it is vital that councils and asset owners decommission abandoned pipelines and fill properly, quickly, and safely.

Terefil® from Mainmark is a lightweight, engineered void fill solution for pipes of every size. Surpassing even the capabilities of cellular concrete or foam concrete,

Terefil® is a unique, specialist flowable fill material that can fill massive pipelines and concrete culverts quickly and cost-effectively.



Find out more about our void filling technologies

Teretek® Resin Injection

Learn more about Teretek


Learn More about Terefil

Fatures & Benefits

Mainmark’s Solutions & Technologies

Fast Execution

Our technologies have fast curing times and treated areas can be used immediately or without the delays compared to traditional repair methods.

Varied Density Choices

We provide materials across a wide density range, from 30 to 1500 kg/m3.

Designed Strengths

Our materials can be designed for strengths ranging from 50 kPa to more than 20 MPa.

Variable Flow Properties

Our materials have variable set times, from seconds to hours, and can be pumped over long distances.

Talk to an expert

Get in touch about your project

Step 1

Submit your enquiry using our online form. Include a brief message about the type of problem you are experiencing.

Step 2

One of our expert team members will be in touch to schedule a site inspection that suits you.

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© 2023 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.

Mainmark Ground Engineering Pty Ltd
ABN: 51 606 182 503





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