Steel slag framework-based ultrathin antiskid wearing layer and preparation method thereof

Abstract

The invention discloses a steel slag framework-based ultrathin antiskid wearing layer and a preparation method thereof. The antiskid wearing layer is prepared from the following components in parts byweight: 20-26 parts of a steel slag aggregate, 70-76 parts of aggregate chips, 2-5 parts of filler, 6-10 parts of water and 8-12 parts of modified emulsified asphalt. The ultrathin antiskid wearing layer is prepared by mixing the steel slag aggregate, the aggregate chips, the filler, water and the modified emulsified asphalt and the like in a certain proportion and sequence. The grain sizes of the steel slag aggregate are 2.36-4.75 mm, the aggregate chips are basalt or diabase chips, the grain sizes of which are smaller than 2.36 mm, the filler is sulphate aluminium cement and limestone flour, the modified emulsified asphalt is obtained by modifying waste rubber flour, an emulsifier is dodecyl trimethylene diane, and an additive is obtained by compounding ammonium chloride and polyethylene glycol. The steel slag framework-based ultrathin antiskid wearing layer can be widely applied to road preserving engineering, thereby providing a novel path to scaled application of fine grain sizeparts of the steel slag.

Description

technical field [0001] The invention relates to a road maintenance material and method, in particular to an ultra-thin anti-skid wear layer based on a steel slag skeleton and a preparation method thereof. Background technique [0002] The use of steel slag in road construction is an effective way to utilize steel slag as a resource on a large scale. With the deepening of the resource utilization technology of steel slag, the coarse particle size of the steel slag with a particle size greater than 4.75mm and the small particle size Steel slag fine powder has been well applied, but for the part below 4.75mm, especially the steel slag of 2.36-4.75mm has not been well applied. Generally, the ultra-thin anti-skid wear layer is usually only used for the maintenance of high-speed asphalt pavement, because the high-speed pavement is usually only subjected to the positive pressure of the vehicle, and the lateral shear force on the pavement is less, while the urban pavement will be su...

AI Technical Summary

Problems solved by technology

[0002] The use of steel slag in road construction is an effective way to utilize steel slag on a large scale. With the deepening of the resource utilization technology of steel slag, the coarse particle size of steel slag with a particle size greater than 4.75mm and the small particle size Steel slag powder has been well applied, but for the part below 4.75mm, especially the steel slag of 2.36 ~ 4.75mm has not been well applied

Generally, the ultra-thin anti-skid wear layer is usually only used for the maintenance of high-speed asphalt pavement, because the high-speed pavement is usually only subjected to the positive pressure of the vehicle, and the pavement is subjected to less lateral shear force, while the urban pavement will be subject to such as garbage sweepers. Municipal vehicles and other municipal vehicles repeatedly use the brakes for rolling, and the road surface is subjected to a large lateral shear force. The effect of using an anti-skid wear layer is not particularly obvious for road maintenance and repair.

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