Environmental Friendly Regenerative Maintenance Equipment On Asphalt Pavement By Microwave-heating

From the repairment practice of asphalt pavement, the crushing technology by heating to melt the road surface is superior to others, which also is the developing direction of the maintenance technology of asphalt pavement. The key to the crushing technology by heating to melt the road surface is how to heat the damaged asphalt pavement. The existed technology of thermal radiation and infrared heating can heat rapidly to the damaged roads, but they both can not guarantee the heating uniformity of the asphalt pavement from top to bottom, meanwhile they cann't avoid the deterioration of the asphalt mixture after heating. Consequently not only the repair quality of the road is affected, but also the recycling of the asphalt mixture can not be fully got. To overcome the fault of the available technology, the development of a particularly applicable to high-grade highway repair and improvement of the road repair service life of environment-friendly of the asphalt pavement is very necessary. It is also our province's priority technology projects in the four major special construction: "large-scale intelligent environment-friendly recyling asphalt pavement maintenance equipment."Furthermore this product is a fully environmental protection, resource recyling, cost-effective asphalt pavement maintenance machinery. First, because of their repair speed, high-quality, the less occupied area, the country's economic artery can be smoothly guaranteed and can have great social significant meaning and economic benefits. Second,it can make full use of the old asphalt of the pavements and does not waste any old mixture .So it save asphalt resources as well as protecting the ecological environment. Therefore, it can be said that the item is not only good for the ecological and environmental protection but also for the construction of road network, recycling use of resources and the main road artery .Therefore it will has a very important economic and social prospect.In this paper,it intruduces the significance of this topic and outlines the microwave heating recycling conservation technology in and abroad ,also it compares with the traditional heating methods in the following ways: the concept of microwave, heating principle, characteristics,application development, and microwave heating in the old asphalt mixture materials application,the impact to the asphalt mixture performance of microwave heating, the process of conservation , recycling application and so on.Then it describes the product features from the concept of environmental protection and economic aspects and introduces the three generations of products structure of the microwave heating system from asphalt pavement maintenance and recyling .Through the trails and research we have optimize the products in the following aspects: the best radiation angle trails and research.In the end ,it make some advices to the development and research direction of the environment-friendly microwave heating equipment of asphalt recyling and maintenance pavement.