|
Semi-rigid asphalt pavement because of its high strength , resistance to permanent deformation , can adapt to heavy traffic , etc. , has become the main form of pavement structure . But also to be desired . Attention and research base the surface Surface Treatment process , reduce water damage , prevent reflection cracks , the quality of service on the road and life is essential . From the current reality of China 's road construction , on the basis of fully absorbing domestic and foreign research , theoretical analysis , laboratory and engineering practice of highway asphalt pavement layer functional layer : adhesive layer , transparent layer , under seal layer formation mechanism , the role of material selection , dosage and construction technology system . Key is through the transparent layer , the key of the sealing layer is bonded . By laboratory experiments that modified emulsified asphalt is more suitable to be used as the adhesive layer of oil ; emulsified asphalt and kerosene diluted bitumen penetration through the layer of semi-rigid base material , as well as their the grassroots different health age affect proposed the best transparent cement stabilized crushed stone and two ash stabilized macadam base layer material and its optimal spreaders amount ; research and analysis under seal in different transparent sealing layer material combination , different binding materials , different base material of seal the influence of the amount of the layer material and the base surface of the interlayer shear strength , while the adhesive effect of the different types of the lower seal layer . This research aims to stabilize the grassroots , grass-roots surface water sealing waterproof , solve the the highway asphalt surface layer and the surface layer , the surface layer with the primary bond to provide a reference to the next layer between the application of the functional layer construction .
|