Services
Vacuum Crack Injection
Cracks in structures and buildings occur for a number of reasons,
and accurate diagnosis prior to treatment is essential. In reinforced
concrete, cracking usually extends to the steel, so remedial action
is required to arrest corrosion. The use of vacuum injection techniques
(and careful selection of appropriate resins) enables cracks as
fine as 0.025mm to be sealed and overall fill levels of 98% to be achieved.
A large number of building facades are clad with either tiled
or mosaic finishes, which are generally fixed to the host structure
with a cementitious backing render. Facade delamination is a common
problem with this type of detail, and pressure only injection
techniques are actually likely to worsen the situation. The use
of vacuum, however, effectively restrains the façade elements
whilst injection proceeds.
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