With the regular road resurfacing activities, roads can become much safer to drive. It can indirectly contribute to make the roads safe by making all the surface markings that may last longer and can easily be read.
Resurfacing is one of the road maintenance techniques. A new asphalt layer gets laid on the existing surface of the road rather than completely replacing both the top as well as the underlying base.
When the sub grade of the road remains in very good condition then resurfacing can be appropriate even if the upper layer of the road is heavily damaged.
There are several methods used to resurface the roads. However, the following are the 3 methods are most commonly used by Sealtek.
In this road resurfacing method, a fresh asphalt layer is applied for restoring its structural integrity and also extending the life cycle. Usually, this method also takes the shortest possible time to complete.
If it is done properly, then resurfacing can easily last for 15 to 18 years based on a few factors like:
- How many numbers of heavy vehicles were used on the road?
- How much it was exposed to harsh weather conditions?
- Asphalt patterns
- How thick the layer of the new asphalt layer was?
As mentioned before, this is the shortest method for completing the work. Once the overlay activities are completed, traffic must be kept off from the road for a minimum of one day. Thereafter, fresh road markings may be applied on this new road surface.
When there will be minimal cracks on the road surface and asphalt binder is also sufficiently soft to accept new asphalt, then this road method of resurfacing is used.
Certain specialized equipment almost like a train is used for heating the asphalt and then re-processing is done on those areas where it has to be replaced.
Existing asphalt will be removed and thereafter new asphalt mix will be applied. This procedure is also quite effective as well as takes a minimum amount of time.
Also, this method is considered to be environmentally-friendly as it needs minimal resources. This is a cost-effective method and can last for 8 to 15 years.
- Mill and fill
Mill and fill method are normally used in such cases where asphalt has already been degraded up to such point, where any cracks and all other structural defects already have made their way on the surface.
The damaged asphalt in this method will be milled for removing it and thereafter fresh asphalt will be applied and then compacted before it is allowed to cool.
Though it may take a little longer to get applied, once it is done, within an hour, traffic can move on resurfaced roads. This method can also last for 15 to 18 years.
After the road resurfacing completes, a maintenance program has to be planned and budgeted for ensuring that the road will remain in good condition.
During the maintenance plan, road markings activities should be included too, since they need to be refreshed periodically, to guarantee that it can maintain their visibility.