Cracks in pavements allow moisture to penetrate the surface which causes permanent material failure. Failure to seal cracks results in further cracking, potholes and eventually a major pavement breakdown, leading to unnecessary expensive repairs.
To minimise the water infiltrating the pavement base, crack sealing with a hot polymer/rubberised bitumen sealant is required, preventing future pavement problems.
Crack sealing is an extremely economical way of maintaining pavements. It is very cheap and effective when compared to undertaking other more extensive works such as resurfacing and reconstructing. Benefits of using crack sealing maintenance procedures on road infrastructure:
- Extends the time between re-sealing of the road surface sealing cracks helps prevent water and other foreign matter entering into the base of road surfaces.
- A cost effective way to extend the life of road infrastructure can help to minimise future degradation of road infrastructure.
- The sealing of cracks before re-sealing of the road surface can reduce reflective cracking in the new surface
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