New Structures and New Materials for Treatment of Wide Cracks in Asphalt Pavement
This paper presents the treatments of wide cracks of asphalt pavement,using both new materials and structures,and verified by the test road.For the longitudinal subgrade wide cracks,grouting holes are drilled along the center and both sides of the longitudinal crack,and polymer modified cement slurry are grouted,and then geotextile and asphalt layer are paved.The test road,used for 5 years is without reflective cracks.For transverse cracks,the ultra-fine cement grouting material is grouted on the holes drilled on both sides of the crack,while the highly-permeable modified epoxy resin is grouted on slot cut along the transverse crack,and the geotextile and asphalt layer are paved.The highly-permeable modified epoxy resin grouting fluid has high permeability and can permeate into the consolidated graded aggregate base for about 15 cm without pressure,which is suitable for treating the hidden loose defects in the pavement structure.
asphalt pavementwide cracktreatmentnew structurenew material
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