Application of Asphalt Fiber Sealing Process
Fiber cover is not only applied to the construction of the new road under the cover layer, play a good waterproof role, but also on the original asphalt pavement for conservation. Asphalt pavement of the conventional diseases are mainly cracks, pimple loose, pits, subsidence and fog, etc., should be due to the causes of various diseases, pavement structure type and the characteristics of the weather season, etc., for different diseases to take different treatment the way.
Pavement subsidence, fog is mainly due to the destruction of the grassroots structure, subgrade subsidence, uneven surface subsidence caused by cracks and sinking, for such pavement should be slotted after filling the corresponding mixture, and then do fiber seal .
As the pavement base temperature shrinkage, shrinkage caused by vertical and horizontal cracks, slit width of 6 mm or less, it is appropriate to crack the cracks with iron brush brush clean, and compressed air blowing dust, the use of specialized irrigation material seal Blocking, and finally do fiber seal.
The use of fiber cover requirements
On the implementation of the fiber section of the road, requiring the base layer and the surface layer has a certain strength, flatness is better, the road damage rate is low. For the long-term disrepair, overdue service, traffic, road surface serious need for overhaul of the road section, not suitable for fiber cover conservation; for overhaul sections of the grassroots and between the surface, the roadbed strength of the old asphalt pavement plus Between the layers used as a stress absorption intermediate layer, to absorb and disperse the stress, to prevent the roadbed cracks or cracks in the old road surface to the overlying layer; for the grass-roots strength is good, there is a slight turtle crack phenomenon needs to be modified Old road surface for the wear layer, can prevent and inhibit the cracks continue to expand, and play the role of anti-skid anti-skid road.
Requirements for geographical conditions and climatic conditions
Drawing on foreign fiber cover technology in a wide range of applications, it can be said that fiber coating technology applied to various countries and regions, but the requirements of the climate conditions are very strict. Construction is not allowed when the temperature reaches 10 ° C and continues to fall. However, construction is permitted when the temperature reaches 7 ° C and continues to rise. Try to avoid rainy day construction work.
Construction equipment and materials
Fiber cover construction machinery required include: fiber sealing equipment, fiber cover construction related equipment, more than 30 t insulation asphalt tanker, 10 m3 above the gravel truck, 50 t loader, tire roller 1 and Road cleaning tools and other small equipment.Construction of raw materials for the modified emulsified asphalt, glass fiber and gravel and so on.