Balvac

Vacuum Void Grouting (VVG)

Developed in the late 1970’s for highways, and still used extensively throughout the UK on both Highways Agency and Local Authority roads, Balvac’s solution to stabilise slabs has since been successfully used in distribution centres and other commercial properties. VVG extends the life of the asset and, particularly in Distribution Centres, has been shown to reduce plant maintenance costs and the exposure of operators to whole body vibration. A variety of testing techniques and surface / joint repair techniques complement the Vacuum Void Grouting stabilisation technique.

Vacuum Assisted Crack Injection

This technique utilises both vacuum and low pressure to introduce grout into cracks as small as a few microns in width. A variety of methods are employed to introduce the most appropriate material for the particular repair and, in addition to concrete, the process can be utilised on more traditional materials such as brickwork and Masonry. Vacuum injection is of particular benefit where high levels of penetration and filling of the crack are deemed important.

Leaksealing and Waterstopping

Control of water ingress and egress is essential in the performance of structures. This technique is used both to stop the ingress of water into structures such as underground tunnels, stations, basements etc and also to stop the egress of water from storage tanks, thus preventing loss of the stored material and/or pollution. Specialist single and twin piston pumps are used to inject a variety of polyurethane and acrylic resins depending upon the particular site conditions and Client’s requirements.