��The role and use of emulsified asphalt slurry seal

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Slurry seal is appropriate graded aggregate, filler, emulsified asphalt, water, additives and other types of raw materials, blending a certain percentage of mixing to form a homogeneous slurry mixture, as required thickness and width of the stalls spread on the road. Slurry seal construction method both for low-grade or high-grade roads roads, whether urban or suburban roads roads, can produce significant economic and social benefits. Slurry seal can wear, aging, crack, smooth, loose and other diseases, quickly repaired, play a waterproof, non-slip, smooth, wear-resistant and so on.
Emulsified asphalt slurry seal construction technology in China is still a new technology, currently used mainly for the following aspects:
1.Repair and maintenance of old asphalt pavement asphalt pavement due to the long exposure to the natural environment, from the sun, wind, rain and freezing and thawing effect, but also to withstand repeated loads of the vehicle. Pavement after a period of use, there will be fatigue, the road will show cracking, loose, aging and wear phenomena. If not timely maintenance treatment, damaged road surface by surface water erosion, will grassroots soft shells, the overall strength of the road decreased, resulting in damage to the road surface. If there is no damage to asphalt pavement in front to take the necessary preventive conservation measures - emulsified asphalt slurry seal, will make look old pavement, and pavement repaired with a waterproof, skid, wear characteristics, it is a species excellent protective layer, played a role to extend the pavement life.
2.Newly paved asphalt seal on a new layer of coarse paving asphalt concrete pavement, in order to increase performance and wear waterproof pavement, you can add a layer of emulsified asphalt slurry seal protection layer on the surface. A thickness of 5mm, only half of the hot tar sands thickness, can save money and have a simple construction and high efficiency characteristics.For highways seal coat. Expressway construction soil stabilization after performed slurry seal construction, holes and hot asphalt surface, can effectively improve the water resistance of the road surface. The construction process will be in widespread use in the future highway construction, for example, "the Beijing-Zhuhai Expressway," the use of this construction process.
3.In laying the gravel surface of the wear layer on a flat surface of compacted gravel paving emulsified asphalt slurry seal, allows the appearance of a gravel road asphalt pavement characteristics, improve the anti-wear performance gravel to prevent dust, improve driving conditions. In the county, there is a wide range of applications on a rural township road reconstruction.
4.Cement concrete pavement and bridge repair and maintenance of slurry seal of emulsified asphalt cement concrete has good adhesion, when the cement concrete pavement because after many years of traffic, pavement cracks, or slightly pockmarked face not usually using emulsified asphalt slurry seal after layer, can improve the appearance of the road, to improve the flatness of the road surface, extend the service life of cement concrete pavement. Driving in the surface layer of the bridge using emulsified asphalt slurry seal overlay Treatment can play the role, and rarely increase the weight of the bridge deck.
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��The role and use of emulsified asphalt slurry seal