Asphalt Surfacing

What is asphalt surfacing:

When the tar which is extracted from the crude oil is mixed with gravel (which is also known as aggregate) or sand then a substance is produced. We call that product ‘asphalt’. The black coloured tar is able to form an excellent adhesive bond with the gravel or aggregate. The bond is strong enough to make the whole substance durable. Asphalt is used in construction of road. While being used it is poured over a layer of aggregate, which is heavier in weight, in a heated condition. Then the mix is placed by pressing with a heavy steam roller. When the asphalt comes to the normal temperature it becomes hard enough to carry the weight of heavy traffic. The interesting benefit of this asphalt surfacing is that it gets harder over the years but retains the flexibility which further helps it to put up with the natural variations.
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Why asphalt surfacing is so popular:

Now a day’s asphalt is being hugely used as a parking lot material. Asphalt surfacing has gained so much popularity because it has the ability to bear the weight of cars with absolute excellence. Asphalt is easy to apply and that too very quickly on a surface that is already prepared. It means that a parking lot can be raised and painted without any delay. Over the time the asphalt surface may face some cracking problems and those will need some patching works. But that too will never be any headache. Patching in case of the asphalt surfacing means bringing new material to the area that is affected and pressing that material into those potholes or cracks. And this is the reason which makes asphalt a winner as a surface material over others, such as concrete. If any kind of repair work in required for the asphalt surface, it can be easily done without hindering the traffic.

Some drawbacks of asphalt surfacing:

There are some disadvantages associated with asphalt surfacing. The fume of sulphur which is released from the machine during the heating process is very hazardous for those who are working and for the passers by as well. If the asphalt surface is exposed to traffic and other degrading conditions then it may result in the process of wearing out, faster than expected. The ground under the asphalt coating freezes and thaws repeatedly. As a result of that those asphalt roads become vulnerable to potholes and cracks. But as asphalt surfacing is a budget—friendly process and it is generally durable, it has made its place as a popular construction material.

 

How to repair your asphalt surface:

Repairing the parking areas or driveways is necessary in aesthetic sense and for safety concern. This can be done by the landscaping firms. There are three kinds of repair for asphalt surface; crack repair, surface overlayment and pothole patching. Pothole patching and crack repair can be performed by any landscaping firm or the homeowner himself. But extensive equipments and expertise are required for overlayment.