According to the different degrees of damage to the concrete pavement and the condition of the roadbed, different pavement repair methods can be used, including: full-depth replacement, partial repair, functional asphalt overlay, etc., and a new surface layer is directly added on the old cement concrete pavement , Is an economical and quick way of transformation.
Determine the construction parameters in the test section. The company's old asphalt pavement reconstruction solution is to use cold recycling machinery to break the old asphalt pavement materials on site, add an appropriate amount of asphalt and modified materials, mix and compact. All the original asphalt pavement materials (RAP) are recycled to form a road construction technology based on old pavement materials. The refurbished old asphalt pavement mask has great flexibility. It can not only be made into pavement structure, but also be added with wear-resistant layer, or used as the base of new pavement.
GZ600 pavement resonance crusher is a new type of cement pavement crushing machine. Through resonance, the old concrete pavement is broken into uniform inlaid fragments from top to bottom, and a new stable subgrade is formed after rolling. Due to the short construction period, the original pavement materials are completely recycled, there is no damage to the original road base, and the road renovation effect is good, so it has been widely used.
Investigate the pavement condition of the old pavement before resonance crushing
Make test section to determine construction parameters
Particle size - gradation - modulus of resilience - spraying prime coat oil or emulsified asphalt