Cold Recycling Technology of Asphalt Concrete Pavement and Its Application

Asphalt concrete pavement regeneration technology is a new method for repairing and upgrading asphalt concrete pavement in recent years. It is a technology that regenerates the old asphalt damaged asphalt mixture by adding a certain regenerant and reuses it to build the pavement structure. At present, the general asphalt concrete pavement regeneration methods include cold regeneration and thermal regeneration. The existing waste asphalt mixture is heated and softened and regenerated, and then the recycled mixture is paved, compacted, and formed into a pavement structure layer. The asphalt concrete pavement regeneration technology is called thermal regeneration; compared with thermal regeneration, cold regeneration It is an asphalt concrete pavement regeneration technology that directly adds the existing waste asphalt mixture to the existing waste asphalt mixture for regeneration, mixing, paving, compaction and forming a pavement structure layer. Cold regeneration can be divided into cold regeneration in the factory and cold regeneration in situ.

In-situ cold regeneration is a construction method for pavement structural layers formed directly on the old asphalt concrete pavement by milling, crushing, re-mixing, and paving compaction. In-situ cold recycling technology of asphalt concrete pavement has made full use of old road waste materials, saves natural resources, reduces costs, improves the quality of pavement structural layers, and is conducive to environmental protection. The outstanding advantages such as shortening the construction period are worthy of further research and application.

Problems and suggestions: (1) There are defects in the local roadbed of the old road, and the roadbed defects must be processed in advance, and then the road surface is rebuilt. (2) Cement should be selected with slag Portland cement with retarding property, so that the recycled mixture can be compacted before initial setting. (3) The length of the appropriate regenerative section must be determined through tests. (4) The asphalt concrete pavement base layer can all utilize recycled materials. (5) Relevant departments should consider introducing mechanical equipment manufacturing technology to achieve high standards and high quality localization of regenerators and related equipment as soon as possible to further reduce engineering costs and expand the application range of asphalt concrete pavement cold recycling technology. (6) Prepare corresponding design specifications and construction specifications as appropriate.

HM-Dual Servo Hybrid CNC Bending Machine

A dual servo hybrid CNC bending machine is a type of bending machine that uses two servo motors to control the bending process. The machine is designed to bend metal sheets into various shapes and angles with high precision and accuracy.

The dual servo hybrid CNC bending machine combines the advantages of both hydraulic and electric bending machines. The hydraulic system provides the necessary power to bend the metal sheets, while the electric servo motors control the speed and accuracy of the bending process.

The machine is equipped with a CNC controller that allows the operator to program the bending parameters, such as the angle, radius, and length of the bend. The CNC controller also allows for easy setup and adjustment of the machine, reducing the setup time and increasing productivity.

The dual servo hybrid CNC bending machine is ideal for high-volume production of metal parts, such as automotive components, aerospace parts, and industrial machinery. It is also suitable for low-volume production of custom metal parts, as it can quickly switch between different bending parameters and shapes.

Dual Servo Hybrid Cnc Bending Machine,Cnc Servo Electric Press Brakes No-Hydarulic,Servo Press Brake,Full Electric Servo Press Brake

FOSHAN RAGOS NC EQUIPMENT CO.,LTD. , https://www.ragosnc.com