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    Commercial

    Pipe Abandonment & Decommissioning

    Overview

    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.

     

    Technologies

    Find out more about our void filling technologies

    Teretek® Resin Injection

    Learn more about Teretek

    Terefil®

    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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    Mainmark

    © 2026 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

    ISO 9001
    ISO 14001
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    Solutions

    Ground Improvement

    Subsidence Repair

    Re-Levelling

    Void Filling

    Slab Lifting

    Crack Wall Repair

    Sinking Floors

    Sinking Foundation Repair

    Underpinning Repairs

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    Locations
    Mainmark Sydney

    169 Sailors Bay Rd, Northbridge NSW 2063

     

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    Mainmark Perth

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