Asphalt is a renewable resource with waterproof and anti-corrosion properties. Asphalt is generally used in road construction. As long as there is no chemical reaction, old asphalt can be excavated, recycled, crushed, screened, and then re mixed with rejuvenators, new asphalt materials, new aggregates, etc. in a certain proportion to obtain a recycled asphalt mixture that meets certain road performance requirements, and used to re pave the road surface. Through road surface regeneration, not only can it meet road performance requirements again, save a lot of material resources and funds, reduce engineering costs, but it can also avoid environmental pollution caused by waste materials, achieve industry circular economy, and promote ecological environment protection. What are the equipment for asphalt pavement recycling?
What are the asphalt pavement recycling equipment?
What are the equipment for asphalt pavement recycling? Double roll crushing equipment, a type of asphalt pavement recycling equipment, uses a dual axis roller crushing asphalt material crushing equipment to crush the recycled material without damaging the original characteristics of RPA. Moreover, the gap between the crushing rollers is adjustable, ensuring the buffering effect of the crusher. This characteristic makes the asphalt material pass rate high and easy to get stuck, with a low probability of failure. The buffering effect during asphalt crushing reduces the generation of noise, reduces noise, and does not cause adverse effects on surrounding residents.
Classification of asphalt mixture types
The different composition, structure, and strength of asphalt materials are due to different natural factors. For example, the strength of embedded asphalt mixture, also known as asphalt crushed stone, is mainly composed of the interlocking force and internal friction resistance between the mineral aggregates, supplemented by the bonding force of asphalt. Therefore, it is less affected by temperature, but has high permeability and poor durability. Another type of dense graded asphalt mixture (such as asphalt concrete), its strength is mainly composed of the bonding force between asphalt and mineral aggregate, supplemented by the interlocking force and internal friction resistance of mineral aggregate. It has low permeability and good durability, so it is greatly affected by temperature.
The opponent of RPA material is not easy to be too high, as being too high can cause RPA material to unite again. Secondly, the water content in the RPA material should not be too high. If the water content in the RPA material exceeds 3%, it will affect the quality of the recycled mixture. Therefore, in order to prevent serious consequences caused by the impact of cherishing, the RAP material pile should be covered, and mechanical equipment should not walk or stay on the pile. Therefore, in order to ensure that RPA materials meet production quality requirements, in addition to handling natural conditions such as rain and wind, it is also necessary to ensure the hardness of the environment and site, and most importantly, open flames must be strictly prohibited to prevent the occurrence of fires.
