Under normal circumstances, in the residential area, the slurry seal layer according to the original road surface life can last 4 to 8 years. In the highway using micro-seal or polymer modified slurry layer, its service life will reach 8 years.
Stripping - Water Erosion Due to the sensitivity of some asphalt to water, especially under the action of vehicle and pore water pressure, the loss of adhesion and pavement collapse of the asphalt is caused. In order to exert the advantages of emulsified asphalt curing, several important conservation methods are currently being studied, in which the loss of adhesion and pavement collapse of SHRP. In order to exert the advantages of emulsified asphalt curing, several important conservation methods are being studied, in which the SHRP program has confirmed that the four methods of crack joint, slurry seal, stone cover and jet pit repair are better Emulsion maintenance method.
Investment costs The construction of an emulsion production workshop requires approximately $ 300,000 from the federal government to provide a wide range of emulsions for spreading. A set of microfilm machines requires $ 160,000. In addition, the contractor also need to tanker to transport water and emulsion, also need a roller and auxiliary equipment used to repair the road rut. The combination of mechanical work efficiency is high, the use of two machines can be relatively easy to complete 501676.2m2 a day, the use of continuous work of the machines need specialized management agencies, so these are only suitable for highway projects.
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