Extruded insulation board on the highway with its paved roadbed process is not complicated, xps extruded insulation board is usually placed on top of the pellets in water permeability than ordinary insulation board equipment and laying the roadbed, when the road is just one more place layer of geotextile fabric covering, with coarse material lay a level work surface insulation board, xps extruded insulation board laid on top, then add a layer of reinforced concrete slab used as a protective layer to disperse the load of asphalt laid on top. Mainly because it can withstand greater traffic load, while its lightweight waterproof, xps extruded insulation board has a better foundation than normal ability to prevent the partial collapse of the road. Our extensive area, highway construction on China's economic development has a great significance. Another big advantage of using xps extruded insulation board as roadbed filler is low cost. And compared to natural soil to fill roadbed, since filling the xps extruded insulation board Further, subgrade xps extruded insulation board EPS packaging materials can be used to produce recycled materials. In addition, the settlement produced after the completion of road works small, long-term use without damage, so its less maintenance, low cost. Depending on the stage of road traffic development goals by 2010, the total mileage and strive to reach 2.1 million & # 8764; 2.3 million km, fully completed "five vertical and seven horizontal" national trunk road, highway mileage reached 50,000 kilometers. By 2020, the total mileage will reach 2.6 million & # 8764; 3 million kilometers. Highway mileage of 70,000 km or more, connect all the current population of more than 200,000 of the city, basically formed the national highway network. These hundreds of thousands of kilometers of road construction will subgrade development xps extruded insulation board the laying of a Sunshine Boulevard, the market is very promising. XPS foamed sheet. Also known as polyethylene extruded plate (XPS), the main raw material is polystyrene. High class mixed extrusion molding insulation board manufacturer, the product has a continuous uniform pore honeycomb structure. Water absorption, thermal conductivity and vapor permeability coefficient are lower than other plates. And high compressive strength, lightweight insulation board Which is good, corrosion-resistant, anti-aging, low prices, is widely used in moisturizing freeze on the construction of thermal insulation, highways, railways, airports Square is recognized on the market highly desirable insulation board.