What Is Crack Sealing?
Crack sealing is the process of creating aflexible, waterproof seal, in and over a crack or joint to stop water and roaddebris from entering the crack and causing further damage. The material used isa hot-applied polymer modified bituminous sealant which is flexible enough toallow for expansion and contraction of the pavement.
Starting as very small openings, cracksgenerally widen quickly as water and debris ingress into the pavement and erodethe sub base.
A proactive crack sealing approach is thereforethe best solution in order to avoid expensive maintenance and eventual pavementreconstruction.
TheAdvantages of Crack Sealing
All Pavement Management Systemsshould include a suitable crack sealing program in order to repair more roadsfor less money, thereby stretching your maintenance budget further.
Some distinct advantages of cracksealing are:
-A crack sealed road can extend its service lifeby an additional 7 years.
-15-20 streets can be crack sealed for the samecost of repaving a single suburban road.
-The fundamental step prior to an overlay orre-seal as it prevents reflective cracking.
-Potholes, crocodile cracking and completepavement failure occurrence are reduced.
-Serves effectively as both preventative androutine maintenance.
5 Unique Reasons Why Businesses Choose National RoadSealing
1.By cleaning every crack with compressed air,debris and small amounts of moisture are blown away. This results in sealant plugginginside the crack to create a water-tight seal and greater adhesion to thepavement.
2.Work can be completed faster, cheaper and moreefficiently due to National Road Sealing’s use of the latest technology,computer controlled pump applicators and machines sourced from all over theworld.
3.Rather than messy dripped or screeded systems,NRS installs a perfect 50mm band 1 to 2mm thick, applied directly onto thecracked pavement by a unique over-banding applicator tip, resulting in a neatand tidy appearance with an excellent water-tight seal.
4.Every seal is checked, measured and recorded forquality control and ready to safely accept traffic in 1-3 minutes.
5.National Road Sealing crews are capable ofsealing up to 6,500 lineal metres per day.