Doing rehabilitation of concrete structures, you must combine several principles and methods to achieve the desired result.

If you have a concrete structure with a lot of damage and a large amount of reinforcement corrosion, we use methods to stop further corrosion.
This is done, for example, by applying coatings, impregnation or molding with a mortar or concrete. Corrosion protection must also be ensured by joining between reinforcement and new mortar / concrete.

For concrete rehabilitation we use concrete spraying (dry spraying) in some cases. This provides good filling and compression around reinforcement iron and this method is suitable for heavier rehabilitation, for example: Underside of dock or bridge. Multibetong has great expertise in the use of dry spraying.

Grouting, pouring with thin-flowing, possibly expanding, mortar (grouting mortar) of joints, cracks, holes or and the like. In constructions of concrete or masonry, for example: by repairs, bolt fixing and the like or in the filling of joints between prefabricated items.

Sealing and stabilization in mountains and concrete structures. The method is used to rebuild damaged concrete and is effective when there are cracks and leakage.
The injection mixture is forced into open pores and bursts under pressure and expands in contact with moisture so that the scratch is sealed. The purpose of the work and moisture conditions will determine the choice of method and materials

Using wire saw, you have many options and can cut out whatever it may be. Wire saw can be used for example in mountains where blasting is not possible. Removing old concrete foundations is done easily and safely with this method.

Wire sawing gives less shakes, dust and noise. Finer cutting edges and less damage to the terrain.

Place the wire around the surface to be sawn. When the wire runs at high speed while tightening, the material is cut rapid. Both horizontal and vertical cutting into mountain sides are possible.

Structures are cut from a safe distance, which means that the work is carried out in a safe and harmless way. With a diamond wire saw it can be sawn in heavily reinforced concrete.

Using extremely high-water pressure removes damaged concrete and rust from reinforcement iron bars without damaging the surrounding area, leaving a clean and strong surface.

The method is a quick and effective method of removing concrete which also limits the removal of intact concrete to a minimum.

Water demolition does not develop any micro cracks.

Sandblasting is a common method to use when cleaning larger areas. But also smaller structures like tanks, containers and pipes.

Compressed air from an air tank and sand in a proper mixing ratio is blown through a hose. When the sand hits the surface, the material is grinded / torn off. The surface is left clean and ready for after treatment. The size of the sand grains varies from 0.05 mm to 3 mm.

This method can be used to remove rust, old paint, cleaning of hard surfaces and more. On surfaces where it requires more gentle treatment, soft abrasives are used instead of sand.

Insulation foam is a simple and affordable alternative to traditional insulation materials. The polyurethane foam provides both thermal and acoustic insulation, waterproofing and radon barrier in one and the same product. Continuous application with a special syringe helps to avoid thermal bridges and leaks at joints and cracks.

Polyurethane insulation foam is a kind of insulation that we will be seeing more of in the future. The possibilities and areas of use are many.

Core drilling is dust free and cuts through steel reinforcement bars without any problems. It is a precise and powerful drilling technique that makes holes in concrete, Leca and all other types of stones. There is no vibration at core drilling, and therefore no structural damage because the reinforcement does not loosen.

Core drilling is widely used in sampling of hardened concrete.

Multibetong AS has four sizes of core drilling equipment. We often use core drilling in connection with wire sawing.

Core drilling is an economical, fast and clean process.

Multibetong AS is certified in demolition and environmental sanitation. We have had several assignments for major clients.

Polyurea is a relatively new type of coating. In the same way as epoxy and polyurethane, polyurea chemically hardens when the components are mixed together.

This is a highly elastic, waterproof, and strong material that meets the strictest wear and tear requirements, as well as requirements for bridging over fissures. It hardens in seconds and can be loaded directly after application.

The product is applied with a two-component high pressure reaction syringe, with high pressure and temperature, where the mixture takes place at the extremity of the nozzle.

Corrosion protection, wearing layer and membrane on steel and concrete structures including materials such as metal, fiberglass, wood, styrofoam and a various plastic materials that are exposed to impact and abrasion. The coating can be used almost everywhere, as it can be applied in temperatures from below freezing point to more than 100 degrees Celsius.

The coating is also very chemical resistant, which makes it very suitable for, for example, industrial floors with a lot of wear and effects from chemicals and mechanical equipment. And at the cleaning plants. Polyurea coatings are also excellent for placing in large wardrobes, and showers.

Polyurea coatings can also be placed in a drinking water pool. This type of coating is approved by the public health institute for drinking water.