1. Due to the surface material, the sand paved sidewalk fell off and cracked. A lot of dust and small stones will accumulate on the pavement surface. The first step in repairing concrete pavement is to clean dust and small stones with cleaning tools. The existence of dust and stone will affect the repair effect, because the repair material can not adhere to the pavement base.
2. After cleaning the road surface, there are still some dust and impurities on the road that cannot be cleaned. At this time, it is necessary to use the power of the high-pressure water gun. Under the action of water pressure, these residual dust and impurities can be removed to a great extent. Wet pavement is also an essential step in the process of concrete pavement sand repair.
3. The clean water to be cleaned stays on the working face for a period of time, and the water has completely penetrated into the turf surface. In this way, it can effectively prevent the repaired materials from penetrating into the dry pavement base, so that the water will completely disappear before the condensation is completed, thus causing the material to crack.
4. Add the surface repair materials of Lulang road bridge concrete pavement, and mix them evenly with clean water. The material is then spread over the working surface to smooth light collection and curing.
The sick part of concrete pavement grinding occurs on the surface of pavement. In fact, the phenomenon of road surface grinding is very common on all concrete roads, especially for the low-grade concrete pavement with long-time heavy-duty vehicles and insufficient pavement strength. When rolling, the material on the surface of concrete pavement will be gradually crushed by vehicles and polished. After the concrete pavement is polished, only the surface repair material of concrete pavement of Langlang road bridge is needed. According to the above repair process, the perfect repair of sand surface can be realized.
