1) At present, the cold regeneration technology of base course has been widely used in different road structures. Generally, the cold recycling technology is mainly applied to the pavement with more than 30% of the material content of the old road structure greater than 5mm. At the same time, according to different structural materials, appropriate stabilizers should be selected. Cement can weigh sandy soil with plasticity index less than 12. Lime and pulverized coal can be selected to stabilize drillable soil with plasticity index between 12-20.
2) This construction technology has a short construction period, and is mainly used in road construction with large traffic volume and no traffic interruption. In strict accordance with the actual conditions of the original road, the method of half width construction is selected to prevent the occurrence of long-term limit and quiet condition of the road.
3) Low cost is an important feature of cold regeneration technology. In terms of the construction cost of the access road, the cost of the cold recycled base structure with a single layer thickness of about 20 cm is about 20-25 yuan per square meter, which is lower and can be reduced by 15 yuan / M2M compared with the cement stabilized macadam with the same thickness. This technology has good economic benefits.
4) The application of cold regeneration technology in road base can effectively save resources. This technology can make greater use of the original pavement structural materials, effectively save natural resources such as sand and stone, and effectively save the land occupied by sand and stone mining and waste.