1, emulsified asphalt crushed stone mixture used on-site artificial mixing system, when conditions can be mixed in the mixing plant machinery. Artificial road mix should be split stockpile, according to the crossed paving area of ??the required mineral materials, loose shop coefficient calculated by 1.4 to 1.5, with a fixed volume of the trolley or hopper side, the mineral materials stacked on the road (or mixing iron Plate), the first dry and mix well, and then piled into a trough-shaped, pile at the end of more than 10cm thick. Requirements of the amount of party accurate.2, the use of cationic emulsified asphalt,
asphalt rubber repair products the first water wet mineral materials, mineral aggregate total water content of about 5%, the weather should be more hot, low temperature and humidity can be added.3, will be wetting mineral materials pile into a trough, to which the design of the amount of emulsified asphalt, rapid mixing. The appropriate mixing time should be based on the construction site of the use of mineral aggregate gradation, emulsion cracking speed, the construction of the specific conditions such as climate by mixing test to determine, mixing should not exceed 60s.4, mixing the mixture with artificial paving, should prevent the mixture segregation. Emulsified asphalt macadam mixture loose coefficient can be determined by experiment.5, emulsified asphalt crushed stone mixture, according to "highway asphalt pavement construction technical specifications" (JTG, F40-2004) in hot mix asphalt mixture requirements, and should meet the following requirements:(1) After the mixture is paved, the initial pressure of 6 ~ 8t light roller should be adopted. It should be rolled 1 ~ 2 times to make the mixture stable initially, and then roll 1 ~ 2 times by tire roller or light cylinder roller. Initial pressure should be uniform advance and retreat, not in the rolling section of the emergency brake or quick start.?, when the roller when the phenomenon of sticky round,
importance of road maintenance the wheel can be a small amount of sprinkler.?, to be drying for some time, water evaporation, and then 12 ~ 15t tire roller or 10 ~ 12t drum roller pressure re-added pressure re-pressure 2 to 3 times until the compact. When the compaction process is to move the phenomenon should be immediately stopped rolling; to be stable and then rolling. Such as the day can not be completely compacted, should be added in the higher temperature state rolling.?, rolling found when the local mixture is loose or cracking, it should immediately excavation and replacement of new materials, leveling and continue rolling compaction. Repair should ensure smooth road surface. 6, the seal layer construction. The upper sealing layer should be compacted in the form of emulsified asphalt crushed stone mixture,
paving block cutter pavement in the water evaporation after the shop.
