Sunday, May 11, 2014

Consult Asphalt Paving Phoenix Contractors For Durable Driveway Installation

By Essie Osborn


Although there are different materials that can be used to construct driveways and parking lots, asphalt is one of the cheap and durable options. When installed properly with help of asphalt paving Phoenix contractors, you can get a durable, economic, and strong pavement structure. A driveway that is correctly constructed using the right materials prevent premature damages and lasts for many years. However, with asphaltic material, you need to regularly inspect the pavements to find out if there are defects like cracks forming.

Any cracks should be remedied immediately to preserve the quality and beauty of the structures. Driveways and parking lot structures suffer from effects of ultraviolet rays. When sun rays heat blacktop surface, they increase the rate of oxidation of asphaltic material. Naturally, asphalt oxidizes and this can take a long time.

The freeze-thaw cycle is one thing that affects the quality of driveways. Water freezing inside pavements can enlarge cracks. When it unthaws, it leaves empty spaces which make the material above to crumble down thus forming potholes. A weak base allows depression to form and these defects cause rainwater to percolate on surface.

Rainwater should drain away from pavements to the edges, and this is why a crown to edge sloping grade is allowed. When water stays stagnant on surfaces, it slowly begins to seep down and settle inside sub grade. Alligatored cracks can be repaired through patching. There are different methods applied in repairing defects on pavements.

If the cracks are many but small, they can be repaired through resurfacing. A resurfacing procedure entails the installation of a new blacktop over an existing one. The old blacktop is not removed but a new one is installed on top. While this procedure may work on the first two or three resurfacing, it cannot be used very many times.

Removal and replacement of asphaltic material is done in order to give a new look and strength to pavements. The contractors who have been in business for long can provide durable and high quality driveways or parking lots. Those contractors have well maintained equipments and highly trained employees who can take all your interests into consideration and ensure you get finished pavement structures that are durable and meet your expectations.

While the untrained eye sees asphalt pavement looking alike, the truth is that there are different hot mix asphaltic materials that can be applied. The different hot mix asphalts have specific properties and they are designed to meet specific conditions. Cracks may be formed due to unstable base which allows movement to occur.

If the compaction of aggregate stones and the soil at the base is not done properly, it may cause the pavements to be weak. This means that with time, you see cracks, upheavals, depressions, potholes, and other defects forming. Depending on the nature of cracks, they need to be repaired immediately. Cracks allow water to enter sub grade layer of pavements and loosen the material underneath thus leading to unstable base.




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