Asphalt Maintenance,Pavement Construction,Concrete
Guide to Asphalt Maintenance
When it comes to asphalt maintenance, there are four important aspects to consider. Water penetrating into the asphalt base is the main cause why asphalt begins to fail. When asphalt has been there for a long time it tends to get brittle and dry and will soon begin to crack, and these cracks makes way for water to penetrate and reach the base of the pavement. So when water seeps into the cracks, it causes the base material to move and settle. There will be a grid-like cracking on the surface when the base materials move and settle. When the pavement begins to crack then there are only two options to take, and these are either to replace the old asphalt or patch repair it. Find out more here about asphalt contractors.
When doing patch repair, you only consider isolated areas of the pavement. You remove a potion of the pavement using a backhoe and saw-cutting. You can also use a grinding machine for this purpose. Replacing the old asphalt that was removed by new asphalt is the next step. Whatever method of removal you use will determine the amount that is removed. The depth of removal should be one and a half times the original thickness of the asphalt. You should replace the base sock so that it matches the adjacent areas to allow for a uniform base support. Your should remove asphalt up to 12 inches past the area that has failed. You can Get an estimate here.
Asphalt overlay maintenance is affordable and provides a new wearing surface. Before dealing with asphalt overlay, there are certain factors that you need to be aware of. 2.5 inches should be the maximum thickness of your overlay, and 1.5 inches for its minimum thickness. Grinding down the pavement should not be done on the overlay section so that he existing structure will be matched. The overlay strength could be weakened if you do this. They will grind the existing pavement down to where they meet flush together to prevent this.
Inlay and pulverize in place are also areas of asphalt maintenance. This is accomplished using a milling machine. A depth of existing asphalt is removed during the inlay process. You should do it at a depth which is deeper than a previous overlay. The contractors will then put the asphalt back to the pre-inlay elevation. The method of pulverize-in-place will reduce all of the asphalt to particles that are base-rock size.
If you want to extend the life of asphalt, then seal coating is important and should not be neglected. The contents of seal coating is a mixture of mineral fibers, emulsified asphalt, and water together with other admixtures. Seal coating the top layer of the asphalt will help prevent water from seeping in the surface of the pavement and this will help protect the top layer from wear for exposure to the sun and oxidation. The even black coating asphalt comes from this seal coating.