Hot-In-Place Regeneration Technology Helps Road Maintenance To Be More Carbon-Free

2023-08-28 16:25:30 ENUO

Regeneration technology is a green and environmentally friendly road maintenance technology. Hot-in-place regeneration technology (HIR for short) is a kind of thermal regeneration technology.

In the past, after the pavement was excavated, it was backfilled by ordinary methods. There were many technological processes, long maintenance time, high cost, and waste disposal was likely to cause pollution. The common maintenance method of asphalt pavement is milling and resurfacing. This technology has many construction procedures and a long construction period. During the production of asphalt mixture, dust and smoke are easy to be generated, causing air pollution and waste of resources. Hot-in-place regeneration technology is much more environmentally friendly.

Asphalt pavement hot-in-place regeneration technology is mainly used to repair asphalt pavement network cracks, rutting, aggregate shedding and other diseases. Because asphalt is non-degradable, in-situ hot regeneration technology avoids the pollution of waste asphalt mixture to nature and protects the ecological environment. The hot-in-place regeneration technology uses special hot-in-place regeneration equipment to heat and loosen the asphalt pavement on the spot, and mix a certain amount of new asphalt, new asphalt mixture, regeneration agent, etc. 100% of the old asphalt mixture is used in the pressing and other processes, which significantly reduces the cost of road surface maintenance, and the cost is 30% lower than that of traditional processes. Not only that, the hot-in-place regeneration process is also efficient and fast. There is no need to interrupt the traffic in the construction section. After the road is compacted, it only takes a short time to cool down, and the new road surface can be passed through. Fully realize "excavation on the same day, backfilling on the same day, opening to traffic on the same day". The completed driveway can be put into use after two or three hours, which minimizes the disturbance caused by road surface maintenance to traffic, and can realize 100% utilization of old asphalt mixture. The construction speed is fast and the traffic impact is small. After 2-3 hours You can pass.

The popularization and application of regeneration technology can save resources more effectively, so that stone resources can be fully recycled, reduce the damage caused by stone mining to the environment, and at the same time reduce energy consumption and reduce carbon emissions. According to calculations by authoritative departments, the application of hot-in-place regenerative maintenance technology can reduce carbon emissions by less than 10% of traditional technology, and achieve zero pollution, without adding "haze" to the atmosphere.