| 摘要 |
A pothole repair machine utilizes hot mix asphalt material to fill the pothole being repaired. The machine includes a heating apparatus for raising the temperature of the surface of the road surrounding the pothole to soften the material for bonding with the material to be inserted into the pothole. A hot tack spray is then placed onto the surface of the pothole before hot mix material is deposited into the pothole cavity. Before depositing the hot mix material, a sensing mechanism determines the depth of the pothole and causes an adjustment of the height of screening doors to effect the uncompressed height of the filling material at a predetermined percentage of overfill before a vibrating roller compresses the filling material to the level of the surrounding roadway. A plurality of screening doors extends along the transverse width of the machine, each door being adjustably controlled by a depth sensor member.
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