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Concrete Repair and Restoration

Concrete Repair and Restoration Concrete Resurfacing Resurfacing is required on corroded and dilapidated concrete surfaces. Concrete Resurfacing is applied to concrete that is showing sings or breakdown and corrosion, generally the concrete is old and in awkward places but the cost to replace the concrete be it a structure or pipe is often to expensive and budget may not allow for full replacement, for that reason it may be more economical to undertake concrete repair and restoration. Our Geo spray type spray-on resurfacing coatings adhere extremely well to existing and suitable concrete surfaces and it also helps to create a slip resistant and durable surface with excellent abrasion resistance and chemical resistance. Concrete Treatments’ Geospray system is one of the most innovative and effective systems available in the NZ market today. Our concrete and repair restoration can transform your concrete surface with amazing results. Designed and engineered to be sprayed over existing concrete, this coating adds structural strength to the concrete it is being applied to. Concrete Repair and Restoration Epoxy Pressure Injection In some applications we use epoxy pressure injection for concrete repair and restoration projects, this method incorporates the ability to inject multiple chemical components, mainly epoxy-based adhesives strong and chemically diverse enough to join concrete where it was otherwise separated due to cracking, in most cases this will be applied to panels of concrete whether in structures or underground chambers. On another hand, epoxy type injection is often used to fill gaps and voids underneath plates, panels or slabs to ensure maximum load bearing capacity is achieved during the concrete repair and restoration process. However the structural restoration of concrete by injecting epoxy under pressure is quite often the only other available means for repair other than full replacement. Consequently large cost savings can be expected when this method is used for concrete repair and restoration jobs. The epoxy injected helps to protect the internal steel that is often found in the concrete and obviously works to mitigate water leaks. Epoxy injection is ultimately just a system that welds cracks together to return its strength back to what it was before the crack occurred. The welding of the crack joint restores the original bearing capacity expected of the concrete slab or structure as required. Essentially the concrete should be as strong as it was when it was new. The concrete repair and restoration...

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...

Our Products

              Prime Resins Prime Resins produce a range of polyurethane grouts, epoxy injection resins and polyurea coatings, optimally formulated for both permeation and compaction grouting operations. These products are unique in that they eliminate water ingress through below ground structures and provide long term protection for concrete from corrosive environments. These low viscosity injection resins are long-lasting solutions that can be used in a wide range of environments, including: Manholes, chambers, meter boxes, tunnels, tanks, clarifiers, aeration basins, pump stations, elevator pits, below-grade walls, equipment pits, lateral connections, pipelines, dams, channels, flumes, swimming pools, concrete basements, other areas requiring waterproofing. We offer a range of grouts, including hydrophobic, hydrophilic and compaction resins to repair leaks. Visit the Prime Resins website   Drainchem We are the New Zealand distributors for the extensive range of Drainchem products available for use in the construction, maintenance and testing of pipelines. The range of products we can provide include Plug It (inflatable drainage plugs and joint testers), wireless radio remote controls, Vacjet vacuum loaders and jetters, Vaporooter sewer root inhibitor, Grease Release sewer degreasing agent, Aquateq pipe cleaning nozzles, Indus vacuum hoses, Poly Hose sewer jetting hose, Kroy industrial vacuum fittings, Troglotech, PIC and Wohler closed circuit television, Pratissoli pumps, Stoneage waterjet tools, Mustang nozzles and the Aussie Cobra Drain cleaning jetters. Drainchem drain and pipe maintenance and testing equipment is used in a broad cross-section of markets such as plumbing, water supply, sewerage and wastewater, stormwater and drainage, pipelines, industrial, rural, irrigation and gas. Visit the Drainchem website   LockDown We supply LockDown Solutions security devices that keep your manholes secure. Originally developed for the Olympic Games in Atlanta, they are useful at any facility that has access from below ground and prevent the dumping and inflow of hazardous chemicals, water and other contaminants. The security device is corrosion-resistant stainless steel, easy to handle and can be installed within five minutes. No modification to your existing manhole is required. Visit the LockDown website   LRM Products LRM products are non toxic, solvent-free with rapid setting qualities that creates a waterproof membrane, also protecting surfaces from corrosion and rust. LRM products do not give off toxic vapours during application or curing. The cured protective coating has excellent dielectric strength, gas permeability, resistance to corrosion creep back and blistering,...

Contact Us

Concrete Treatments NZ Ltd 196 Ridge Road, R.D.4, Tuakau 2694 0800 99 88 71 Administration: 0800 99 88 70 E. info@concrete-treatments.co.nz Or send us a message...

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