Application Of Thermal Regeneration Equipment In Pavement Maintenance

With the asphalt pavement construction and management technology continues to impro ve, long-life asphalt pavement is the inevitable direction of development of highway, to us e in the future life of the pavement, pavement structure and materials will be in a relative ly stable state, only in the use of the process to surface abrasion material material for mai ntenance and repair. Therefore, whether it is at this stage of the disease or long-term repair technology development demand, has the vital significance to the popularization and appli cation of asphalt pavement hot in place recycling technology and equipment.In this paper, asphalt pavements thermal regeneration technology and equipment to p romote applied research for the purpose, focus on "integrated transport, intelligent transpo rtation, green transportation and traffic safety," the concept of social development, in orde r to better promote China Asphalt Pavement Spot Heat Recycling Technology and Equip ment the application, solve problems encountered in the construction site, to carry out re search work for the asphalt Pavement site thermal regeneration technology features and Z hejiang Expressway asphalt Pavement 2015 1 thermal regeneration project tenders for the engineering background, research the following conclusions:(1) Heating machine, the use of infrared and hot air heating implemented together, in such a way can not only prevent aging occurs when heated, and the heating efficienc y is greatly improved; the establishment of a highly efficient hot air circulation system, hot air circulation system penetrating power, high pressure, good heating effect, by prov iding the uneven gas passage, allows construction of surface heating temperature uniform.(2) Milling machine side, the development of two milling program to avoid the un derlying aggregate shattered, enhanced adhesion between layers; also have developed a ne w heating and milling machine milling capabilities to achieve a multi-purpose machine research and development before and after each set of harrowing milling equipment, addi tional intermediate heating box, not only to achieve a layered milling prevent aggregate c rushing, grading effective protection, reduce the degree of aging of the asphalt.(3) Heat reclaimer regard, we developed integrated add recycling agent, the new as phalt, new asphalt and features warm mix agent; after re-mixing machine after recycled materials, a supplement content of the new asphalt, the second is to optimize the origina 1 there are road grading, three aging asphalt can restore performance, four is to improve the quality of the mixture mixing, fifth terminal is heated to ensure that the paving tem perature; increasing the synchronizing spraying emulsified asphalt adhesive layer function, Pavement with special requirements can be sprinkled through the cloth sticky layer of o il to enhance the interlayer adhesion, so that the original damaged road and water shear capacity greater capacity.