Due to uneven settlement of the roadbed caused by cracking on the road, in many provinces in our province, hilly areas of the road is very common, especially in those half-filled half of the embankment, improper handling before filling, rolling more difficult, new and old roadbed difference Of the road sections, the road after the opening of the car due to the role of the load and rain, resulting in uneven settlement, the road may produce a large settlement difference, resulting in vertical and horizontal cracks. In the rainy season, there are often symmetrical longitudinal cracks in the hard road shoulder and full subgrade 1/4 in the low temperature or soft foundation section. The main reason is that under the action of water, the soil base and the fill of the embankment have a large settlement settlement, while the middle soil and the fixed or settling are smaller, causing uneven settlement, leading to longitudinal cracking of the road , Seam width up to 5cm. Road Sealing Machine - Road Machinery Equipment Manufacturers - Doan Machinery hard trowel concrete finish asphalt crack cleaning machine driveway sealer comparison