Pavement super-sticky thin adhesive cement sealing layer mixture and preparation method thereof

Abstract

The invention discloses pavement super-sticky thin adhesive cement sealing layer mixture and a preparation method thereof. The pavement super-sticky thin adhesive cement sealing layer mixture comprises the following components in mass percent: 30 to 50 percent of modified emulsified asphalt, 4 to 10 percent of silicate thixotropic lubricant, 10 to 20 parts of fine-grained sand, 0 to 6 percent mineral filler, water-borne epoxy resin, water-borne epoxy resin curing agent and balance of water; the total mass of the water-borne epoxy resin and the water-borne epoxy resin curing agent is 5 to 10 percent of the mass of modified emulsified asphalt, wherein a mass ratio of the water-borne epoxy resin to the water-borne epoxy resin curing agent is 1:1 to 1:2. The pavement super-sticky thin adhesive cement sealing layer mixture disclosed by the invention can effectively seal pavement micro-cracks, prevent aggregate from being loosened and falling, prevent water from downwards seeping, obvious improve pavement appearance and is low in maintenance costs.

Description

technical field [0001] The invention relates to the field of material science and engineering, in particular to a pavement super-sticky thin-layer mucilage sealing layer mixture and a preparation method thereof. Background technique [0002] In the initial stage of road use, the pavement began to experience slight fatigue cracks, loss of fine aggregates, etc., and the water permeability was greatly improved. The accumulated water would seep into the aggregate damage through the cracks and even enter the base layer, accelerating the damage of the pavement structure. During this period Timely maintenance is required. At present, the initial maintenance of the pavement can use micro-surfacing, thin-layer overlay, etc. to deal with these subtle defects, but the above-mentioned treatment methods are high in maintenance costs on the one hand, and not very targeted on the other hand. At present, domestic ultra-viscous thin-layer mortar sealing materials generally do not contain sa...

AI Technical Summary

Problems solved by technology

At present, the initial maintenance of the pavement can use micro-surfacing, thin-layer overlay, etc. to deal with these subtle defects, but the above-mentioned treatment methods are high in maintenance costs on the one hand, and not very targeted on the other hand

At present, domestic ultra-viscous thin-layer mortar sealing materials generally do not contain sand, have poor wear resistance and adhesion performance, and will reduce the anti-skid performance of the original road surface

However, the domestic introduction of foreign technology requires the purchase of special supporting equipment at the same time, which is expensive and seriously restricts the application of this technology.