How to repair the ground cracks? According to different types of ground, there is a saying about the material selection and repair method after cracks appear. In most cases, chaoda road joint sealant used on the road can be used.

There are many types of ground, including cement concrete and asphalt concrete, so the crack repair methods of the ground are also different.

If it is a ground crack of asphalt concrete type, according to the width of the crack, it can be repaired directly by pouring joint repair or sticking joint repair, that is, the kind of road joint sealant and pavement joint tape used on the road. If the ground crack is wide, it can be repaired by pouring joint sealant, and if the ground crack is narrow, Paste and repair with pavement joint tape.

If it is the ground crack of cement concrete type ground, the crack repair treatment shall be carried out according to the situation. If the ground crack stress has been fully released, it can be directly filled and repaired with cement mixed sand and stones; If the ground crack stress is not fully released, it is necessary to use hot-melt road caulking glue or cold caulking glue that does not need heating for caulking repair treatment to prevent rainwater from penetrating into the ground from the ground crack, resulting in the ground cavity under the crack, and the later damage will be more serious.

Next, three materials used for ground crack repair are briefly introduced:

1. Road joint sealant: the road joint sealant needs to be heated in the construction process. The main component is polymer modified asphalt. In the process of using the material, it only needs three steps: slotting, cleaning and hot melt joint grouting. After the joint is closed, the traffic can be opened for more than 20 minutes.

2. Cold pouring joint glue: through tripartite testing, the main component is polyurethane for roads and bridges. During the construction of cold pouring joint glue, there is no need to heat and input high-value equipment. Just screw the cover and pour the joint. The construction steps are: slotting, purging and pouring the joint. The disadvantage is that the joint filling materials that do not need heating generally have a long solidification time, ranging from a few hours to dozens of hours.

3. Pavement joint sticking belt: the construction is simple. The required equipment is only a crack purging machine. The construction does not need any technology. Children can learn to construct in a few minutes. The whole process of standing and walking construction is as simple as sticking band aids.