In today's rapidly developing highway construction and maintenance industry, the amount of waste asphalt pavement material (RAP) generated annually is staggering. Traditional landfill disposal methods not only occupy vast amounts of land resources but also cause serious environmental pollution, contradicting the "dual carbon" goals and the concept of green infrastructure. The emergence of asphalt waste pavement recycling equipment has completely changed this situation, realizing the goal of "turning landfill into recycling and waste into gold," becoming a core piece of equipment in the road construction field.

Asphalt waste pavement recycling equipment is an integrated processing system, with core components including pretreatment, crushing and screening, heating and regeneration, and intelligent control modules. The cold material silo in the pretreatment system is equipped with an arch-breaking device and moisture content monitoring function to prevent material agglomeration and ensure continuous and stable feeding; the feeder adopts a variable frequency speed control design, which can precisely control the feed rate according to production needs and avoid equipment overload. The crushing and screening unit is the core of the recycling equipment. The mainstream configuration consists of a flexible toothed roller crusher and a multi-stage vibrating screen. Through flexible crushing methods such as extrusion and shearing, it avoids damaging the original aggregate gradation and reduces the generation of fine powder. Combined with a fully enclosed vibrating screen, it achieves precise grading. The heating and recycling system uses counter-current heating or microwave heating technology to achieve efficient separation of asphalt and aggregate under precise temperature control of 160℃±5℃. The separated old asphalt can be recycled for the production of recycling agents, while the aggregate serves as the core component of the new mixture.
The core advantages of this type of equipment are reflected in three dimensions: resource utilization, environmental benefits, and economic benefits. In terms of resource utilization, mainstream equipment supports the addition of recycled materials, reducing the consumption of new aggregates per kilometer of road maintenance, and achieving a high old asphalt recovery rate. Regarding environmental benefits, compared to traditional treatment methods, dust emission concentration is lower. Economic benefits are high, with the production cost of recycled materials being lower than that of virgin materials, and a shorter investment payback period.
In practical applications, asphalt waste pavement recycling equipment has been widely used in high-grade highway maintenance, urban road reconstruction, and other scenarios. Zhejiang Jinhua Bayong Group uses Southern Road Machinery's recycling equipment to finely process RAP for use in highway surface layers, with the recycled material's performance fully meeting the requirements of JTG F40 specifications. The Foshan Chanxi Avenue renovation project in Guangdong utilizes integrated recycling equipment to complete RAP closed-loop processing within 48 hours, shortening the construction period by 20% and reducing management costs by 15%. With the upgrading of intelligent and low-carbon technologies, future recycling equipment will develop towards 5G+remote monitoring, AI-based gradation optimization, and photovoltaic drive, providing more efficient technical support for green infrastructure.