Applying a layer of Bitumen Emulsion and adding one layer of sand/aggregates on it. Normally CRS is used for this purpose.
1- It makes asphalt layer smooth, safe, steady, water proof and stops being slippery.
2- It creates a color contrast between main road and shoulder of the road.
3- To provide the minimum extra strength/tolerance for pavement
4- To create a water- insulated surface.
5- Seal Coat provides more tolerance for the top layer so that the layer stands indent and ice pick tires better.
6- Seal Coat is cheaper than keeping and maintaining a deteriorated asphalt layer.
7- Seal Coat lifetime is between 3 to 5 years and it is better to be applied on a warm day.
8- Applying Bitumen Emulsion as Seal Coat is more economical than cutback bitumen.
9- Seal Coating is also suitable for the roads which we do not decide to rehabilitate.