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Trenchless Pipe Installation The expertly knowledgeable team at Concrete Treatments NZ Ltd offer No-Dig Trenchless Pipe Installation services. With over 50 years’ combined experience in tunnelling and trenchless methods, we are the number one choice for underground works in New Zealand. Whether you require tunnel boring, pipe jacking, pipe crossing, or drill blast services, Concrete Treatments NZ Ltd are your go-to company for any No-Dig Trenchless technology project. Utilising our unique and innovative micro tunnelling methods we can currently offer pipe installations from 300mm-2000mm, giving you a wealth of options for your no dig project. Our Trenchless service can be used for tunnel rehabilitation or repair works, meaning we can perform restoration to damaged pipes with minimal or no excavation. Our Trenchless spot repair service is a supremely efficient and cost-effective option. Our highly skilled engineers provide the best Trenchless Pipejacking service, installing steel pipes and casings with no digging involved. In addition to our Trenchless Tunnelling work we can carry out extensive tunnel boring tasks, using our cutting-edge TBM to excavate a variety of ground formations. Our superior tunnel boring machine means you receive a fast, productive, and economical service to help you keep your project’s completion schedule and budget on track. We are able to operate anywhere in New Zealand, and can manage most ground conditions with our adaptable plant machinery. All our machines and services meet or exceed the new mines regulations; health and safety are paramount to us on all our projects. Concrete Treatments NZ Ltd is a member of the Australian Society for Trenchless Technology (ASTT) so you can rest assured of the safety and quality of all our work. No matter the size and scale of your no dig project, Concrete Treatments NZ Ltd can work with you to provide the best trenchless technology methods for your needs, giving you a comprehensive service at an affordable price.   Hydro Demolition We are excited to introduce you to a hydro demolition robot called the Aqua Cutter 410A Evolution. It’s suitable for all types of operations; it’s small but extremely capable, it is designed for quick set up and safely enables high productivity on small to large hydro-demolition and scabbling projects. It has an articulated telescoping arm which enables a full range of movement. This flexibility allows the robot to reach horizontal, vertical and overhead areas in many challenging...

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Case Studies

                Infrastructure Projects   GeoSpray Stormwater Sewer Rehabilitation Auckland City Council Concrete Treatments undertook the reinstatement of lost culvert invert using premix concrete to reduce some culvert collapse risk. Installation of centrifugally cast geopolymer mortar inside an old pipe to provide fully structural rehabilitation. Ability to perform works with minimal disruption to local residents. Environmentally friendly due to product being inert once cured. Click Here to read the full Milliken GeoSpray Case Study.   Christchurch Infrastructure Repairs Christchurch City Council We are involved with repairing damaged infrastructure across the city, repairing leaks to over 2km of sewer pipelines and eliminating infiltration into sewer manholes. We use CCTV equipment for locating leaks and monitoring repairs.   Ascot Tunnel Repairs Auckland Council We worked inside a 400m long, 2m diameter tunnel with access via an 18m deep shaft. Primeflex 900XLV and Hydrogel SX were used to eliminate water infiltration through the pipe joints on the curved section of the tunnel.   Silverstream Pumpstation Repairs on the Taieri River Otago Regional Council The pipes of the Silverstream drainage pump station were leaking, causing the Taieri River stopbank to erode and flood the surrounding paddocks. Concrete Treatments repaired the leaks with the internal sealing of three 765mm diameter concrete discharge pipes and the injection grouting of external voids through the pipe walls.   Manhole and Pump Station Leak Repairs South Wairarapa District Council We effected repairs at the Featherston pump station and 12 of the feeder manholes to minimise the groundwater infiltration to the sewer system. The repairs substantially reduced the Council’s overall sewer pumping load.   Milliscreen Concrete Channel Refurbishment Timaru District Council The areas for repair were located in the confined space underneath and inside the milliscreen sewerage treatment plant. This required the use of breathing apparatus and forced air ventilation due to the presence of high levels of hydrogen sulphide gas. The corroded concrete surfaces were rebuilt using Rapid Repair and long term protection was provided using Armor.   Burkes Wastewater Pump Station Dunedin City Council This pump station, constructed 14 years ago, was on the verge of collapse as theconcrete structure was severely corroded and the reinforcing steel had been compromised.We repaired the reinforcing steel and rebuilt the corroded concrete surfaces in the pump welland storage chamber. The repairs provided the Council a cost...

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