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| Tweet Topic Started: Mar 10 2017, 03:31 AM (3 Views) | |
| qzz10011 | Mar 10 2017, 03:31 AM Post #1 |
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<p>With the increase of China's reform and opening up, the total mileage of China's roads will increase year by year. At present, the total mileage of highway traffic in China has exceeded 4 million kilometers, of which 85,000 kilometers are highway (the province's highway has exceeded 4,000 kilometers). Large and medium-sized cities have formed a basic between the highway network, connecting large and medium-sized cities and various small towns and the majority of rural roads for the two or three highways. These two,road pits filler three highway maintenance problems are more and more prominent.</p> <p>Asphalt pavement maintenance technology is divided into three categories: 1. Preventive maintenance, refers to the road conditions are still relatively good, to take some necessary technical means to make the road function to maintain a good state, foreign application is very successful table, Slurry cleaning layer is a typical preventive maintenance technology; 2. Corrective maintenance, refers to the road has been a variety of diseases,rent concrete laser screed to take the appropriate conservation measures, usually we pan oil, larger rutting, wider cracks, etc. The implementation of the treatment measures are part of the scope of corrective conservation; 3. is an emergency conservation, refers to the emergency in the conservation, such as the need for immediate treatment of pavement, collapse repair and so on.</p> <p>The difference between the three types of conservation strategies is mainly due to the different timing of conservation and there is no clear boundary. Among them, the prevention of conservation originated in the last century 80's, developed countries in Europe and the United States has been deeply rooted among the people,crack sealing costs is one of the most cost-effective conservation policy for asphalt pavement damage road maintenance measures, generally can be divided into repair and preventive Conservation of two.</p> |
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