Repairing ageing and damaged public infrastructure is almost always more cost-effective than replacing it.
Using proven ground engineering and asset rehabilitation techniques, councils and other asset owners can extend the life of public assets and eliminate the need for replacement.
Mainmark offers a range of advanced, environmentally-inert solutions that significantly reduce capital works expenditure and improve public safety.
We repair assets for electricity, gas, waste management, and telecommunication providers, as well as water authorities. Our methods are fast and clean. They don’t usually require excavation, so disruption is kept to a minimum and worksites are left in their original state. Depending on project requirements, sites can often be returned to full operation within a matter of hours.
Strengthen ground and re-level public infrastructure
Mainmark’s injection technologies are cost-effective, non-invasive methods for re-levelling, re-supporting buildings and on-ground structures of all sizes. We offer resin injection and grouting solutions for compacting and strengthening ground to raise structures and stabilise lose soil.
JOG Computer-Controlled Grouting
JOG Computer-Controlled Grouting is an award-winning technology for raising large and complex public utility structures, including gas, water, electricity, substation, and facility plants.
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Teretek
Our new Teretek engineered resin solution is ideal for raising and re-levelling small to medium-sized structures, including roads, bridge approaches, pavements and public buildings.
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Specialised Resins, Gels and Coatings
Mainmark offers advanced, site-specific solutions for revitalising, sealing, protecting and structurally reinforcing ageing or damaged buildings and infrastructure including tunnels, shafts and basements impacted by weak ground and water ingress.
Learn moreSuccess Story:
Raising the bar in ground engineering innovation
Awarded International Project of the Year at the 2016 Ground Engineering Awards in the UK, Mainmark re-levelled and re-supported the 33,000 tonne Christchurch Art Gallery after the earthquakes of 2010/11. The project was completed in just 52 days using Jet Grouting and JOG Computer-Controlled Grouting.
Success Story:
Keeping power stations up and running
After a mains pipe had ruptured three metres beneath the concrete floor at an electric utility power station, water damage had caused the ground to weaken and the power plant’s 60-tonne cranes were unable to enter the site for routine maintenance. Mainmark used Uretek resin injection to fill the voids and compact the sub-base, consolidating the area and sealing the flooring quickly and economically. The power station continued to operate throughout the project.
Fill voids
Mainmark has a number of void fill solutions such as polyurethane and cementitious grouting. We assess each situation to determine the best course of action and the best material to use. Smaller voids in underground rock strata are generally filled with a void filling foam or concrete void filler; a material like urea silicate or polyurethane resin that not only fills the void but also ‘glues’ the surrounding rock together.
When greater supportive strength is required, such as for retaining wall backfill or large voids, Mainmark’s Terefil® solution can be applied. A lightweight polymer modified cementitious-based void fill material, Terefil can be used for massive voids that require filling quickly and economically. This versatile engineered material is ideal for use as a fill in situations where cellular concrete, foam concrete or foam cement would otherwise be applied. Terefil’s capabilities as a structural fill far surpass those of traditional granular fills or aggregate materials. The highly flowable grout can be pumped efficiently over long distances to overcome limited site access and meet tight project timelines.
Typical uses:
- fill large holes and voids
- obsolete tanks
- abandoned pipes and decommissioned culverts
- mineshafts and tunnels
- sinkholes
- landslip repair
- backfill for retaining walls and trenches
Terefil® mix can be pervious or impervious to suit the application, forming an effective permeable subgrade beneath roads, highways, airport runways and sporting facilities. It will flow into spaces to fill voids with zero bleed and exhibits shrinkage of typically less than 0.1%-0.3%.
Success Story:
Returning a fatal weir to safety.
Mainmark applied Terefil to fill a dangerous void at a weir in South Dubbo that had been the site of nine fatalities since its construction in 1942. The void needed to be filled to restore structural integrity to its apron, creating a shallower and less turbulent pool of water. Mainmark successfully filled the void within three days, working around heavy water flow.
Rehabilitate ageing assets
ENCAP6
ENCAP6 revitalises ageing infrastructure using technologically-advanced, spray-on chemical resin. It bonds to concrete and steel structures to provide superior chemical resistance and corrosion protection. ENCAP6 is a proven and cost-effective solution for rehabilitating stormwater drains, pipes, culverts, manholes, wastewater and drinking water facilities, sewage infrastructure, pylons, wet wells, lift stations, water tanks, chemical bunds and concrete walls.
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Primus Line
Primus Line trenchless technology can repair high-pressure pipelines with minimal disruption, using a flexible, 3-layer hose that won’t compromise hydraulic pressure. It’s ideal for renewing and providing corrosion protection for existing water, gas, chemical, or oil pipelines.
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Ultra-Panels
Ultra-Panels concrete slabs are exceptionally abrasion-resistant and durable. They are ideal for rehabilitating and replacing high traffic and chemically-affected concrete surfaces, such as driveways, pads, floors in scrap yards, garbage disposal centres and refill stations.
Learn moreSuccess Story:
Rehabilitating a steel pipe under three factories with no excavation
Mainmark successfully rehabilitated a two-millimetre thick galvanised steel drainage pipe that was heavily corroded and had collapsed under heavy traffic from the factories located above it. Structural expanding resin was first injected to re-align and structurally support the pipe, and then ENCAP6 was applied to rehabilitate it. This method eliminated the need for expensive excavation, renewal, or diversion of the drain, delivering significant cost savings for the council.
Stabilise ground
Permeation Grouting
Permeation Grouting can stabilise lose gravel, sand and other non-cohesive soil to provide safer access for crews during public utility extensions and renovations, demolition, landscaping, and underground and above-ground construction. It reduces the permeability of granular soils to create ground cohesion. This remedies erosion and prepares sites for excavation.
Learn moreSuccess Story:
Rehabilitation of Stormwater Chamber
A stormwater pit and embankment in Gardyne Street, Bronte, New South Wales, was experiencing structural problems due to the ageing infrastructure. Storms and malfunctioning plumbing mains had caused a large area of road to collapse and subside. An adjacent house had also experienced settlement because of the erosion. Mainmark successfully addressed the structural and ground stability issues faced by the council in just two weeks.
