EVERYTHING YOU NEED TO KNOW ABOUT CRACK SEALING
The most common reason for pavement failure is moisture penetrating the surface.
Cracks in pavements allow moisture to penetrate the surface which causes pavement 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.
Crack sealing is a practical and cost effective measure and is part of any good pavement management program for all roads.
Who uses crack sealing?
Crack sealing is used world wide, extensively in countries including France, England, Germany and USA. States such as Texas, USA spend approximately $US11m per annum on their crack sealing program.
In Australia, crack sealing has been used increasingly more over the past two decades. Many local governments in all states and territories now advocate crack sealing as a key element of their maintenance program. Both small and major contractors have also been using crack sealing more as results have shown that they are able to have their repairs and new overlays last longer.
The results here and internationally show that crack sealing is a proven way of effectively protecting and extending the life of pavements.