Expansion Joints in carparks and hardstand areas can also be repaired through permeation grouting of the sub-base to fill voids and polyurethane injection to lift the slab back to level where there is a step in the joint due to subsidence or washout. This process can avoid extremely costly and disruptive demolition and replacement of the concrete slab.

FCS Concrete Repairs are experts in the field of concrete repair and are approved contractors for the major suppliers of joint sealants and joint repair products.

You can rely on FCS Concrete Repairs, as we are Quality Accredited under the International Standard ISO 9001: 2015 to carryout quality workmanship with full backup services, if required.

Expansion Joint Re-sealing

Expansion Joints in concrete floors and walls control movement and over time the joint sealant can deteriorate. The sealant can be removed and replaced to ensure that the joint is waterproof and performs as required.

Expansion Joint Reinstatement

Expansion joints require that the facing edges of the adjoining concrete slabs are sound so that the flexible joint sealant forms a strong bond between the concrete slab or wall elements. Industrial floors, which may be on ground or suspended, require regular maintenance as they are vulnerable to impact damage from mobile plant including forklifts which are often hard-wheeled. Broken and crumbling edges along an expansion joints is an indication of future extensive and costly damage.

Where considerable damage has occurred it may be necessary to carry out more extensive repair including concrete saw cutting and edge reinstatement. Regular inspection is a cost saving option to ensure that the jointing material is still performing and protecting the concrete joint edge faces. Heavy duty repair mortars may be required to re-construct the joint and these can be fast drying/curing to minimise downtime. FCS Concrete Repairs can provide professional advice in this regard.

Widening Expansion Joints

Expansion Joints may widen over time due to slab movement and damage.

Narrow expansion joints can provide a smoother transition across the joint and minimise future damage. FCS Concrete Repairs can re-form wide expansion joints cost effectively to reduce the gap and the impact over widening joints.

The post Maintenance of Concrete Expansion Joints appeared first on FCS Concrete Repairs.

The recent successful repair of the historic Münchenstein Bridge which crosses the Birs river in Switzerland where two girders, the most critical elements against fatigue on the 45.2 metre steel bridge, were strengthened using carbon fibre reinforced polymer materials.

Another example is the Arlington Memorial Bridge between Washington and Virginia where the original structural beams built in 1932 are crumbling and are to be repaired using Carbon Fibre Reinforced Polymer materials.

Melbourne’s West Gate Bridge widening was made possible by cost effectively using Carbon Fibre Reinforced Polymer materials.

Carbon Fibre Reinforced Polymer materials can be used successfully to repair and strengthen structural elements in buildings as well.

Carbon fibres have a very high tensile strength and tensile elasticity similar to steel but the great advantage is the high strength to weight ratio. This makes carbon fibres potentially and practically a large cost saving material for both government and the private sectors alike.

FCS Concrete Repairs are experienced in the use of Carbo Fibre Reinforced Polymer materials.

The post The Question: Replace or Repair Australia’s Ageing Infrastructure? appeared first on FCS Concrete Repairs.

Geopolymer cements and concretes for building and repairing infrastructure have very high early strength, their setting times can be entirely controlled, and they remain intact for a very long time without the need for repair.

With Geopolymer foams substrates can be strengthened, voids can be filled, slabs can be lifted/jacked, and joints can be stabilised with a minimal of disruption to or loss of production.

FCS Concrete Repairs are experienced in the use of such materials.

The post Geopolymers can be described as “Materials for this Century” appeared first on FCS Concrete Repairs.