Water-based reinforced type fog sealing layer material for asphalt pavement, and preparation method and construction method of water-based reinforced type fog sealing layer material for asphalt pavement

Abstract

The invention relates to the technical field of highway maintenance, and discloses a water-based reinforced type fog sealing layer material for an asphalt pavement, and a preparation method and a construction method of the water-based reinforced type fog sealing layer material for the asphalt pavement. The fog sealing layer material comprises a lower water-penetration-preventing sub-layer and an upper anti-skidding wear-resisting sub-layer, wherein materials for preparing the lower sub-layer contain an emulsifier, water, an organic solvent, a dispersant, an additive, a penetrating agent, a viscosifier and asphalt, and materials for preparing the upper sub-layer contain an emulsifier, water, an organic solvent, a dispersant, an additive, a penetrating agent, a viscosifier, an ultraviolet-resistant aging agent and asphalt. The construction method of the fog sealing layer material is a layered spreading method and comprises the following steps: mixing mixed liquor of the materials for preparing the lower sub-layer with a sand material to obtain a mixture, spreading the mixture on the asphalt pavement to form the lower water-penetration-preventing sub-layer, drying, spraying mixed liquor of materials for preparing the upper sub-layer on the lower water-penetration-preventing sub-layer, and spreading the sand material to form the upper anti-skidding wear-resisting sub-layer. The water-based reinforced type fog sealing layer material for the asphalt pavement, the preparation method and the construction method d of the water-based reinforced type fog sealing layer material for the asphalt pavement, disclosed by the invention, are used for pavement preventive maintenance, can improve the waterproof performance, anti-skidding performance, firmness and ultraviolet resistant aging performance, and are environmentally-friendly and economical.

Description

technical field [0001] The invention relates to the technical field of highway maintenance, in particular to a water-based enhanced fog seal material for asphalt pavement, a preparation method and a construction method. Background technique [0002] After several years of normal use of the asphalt pavement, the pavement will experience slight fatigue cracks and loss of fine aggregates, and its anti-seepage performance will deteriorate, and pavement water will enter the asphalt mixture through cracks or fine aggregate damage. , accelerated the damage of the road surface. [0003] Fog seal is currently the most effective preventive maintenance measure for asphalt pavement. This technology spreads the fog seal material on the asphalt pavement in the form of a mist to form a thin layer of seal to seal tiny cracks and surfaces. Voids, restore and protect the oxidized asphalt pavement, play a role in waterproofing and inhibiting looseness, and at the same time improve and enhance...

AI Technical Summary

Problems solved by technology

[0004] However, the relatively simple preventive maintenance method of fog seal layer commonly used at present, its biggest disadvantage is that the anti-seepage effect is not ideal, and the adhesion between the original fog seal layer and the original pavement stone material cannot achieve the expected effect. Detachment will occur, exposing the stone material of the original pavement, and the anti-seepage ability of the pavement will be reduced, thereby reducing the skid resistance of the surface layer of the asphalt pavement

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