Patching material for potholes of anti-icing road surface and preparation method of patching material

Abstract

The invention discloses a patching material for potholes of an anti-icing road surface and a preparation method of the patching material, and belongs to the technical field of building materials. The patching material for the potholes comprises the following components in parts by weight: 88.5-89.5 parts of aggregate, 5-5.5 parts of cold-patch asphalt liquid and 5.5-6 parts of anti-icing agent Verglimit-260, wherein the cold-patch asphalt liquid comprises the following components in parts by weight: 77-80 parts of asphalt, 17-20 parts of diesel oil and 2.5-3 parts of cold-patch agent Ad-here 260L. The preparation method comprises the following steps: 1) stirring the asphalt while heating, and stopping heating when the asphalt reaches 165-175 DEG C, adding the diesel oil and the cold-patch agent in sequence, stirring uniformly, and obtaining the cold-patch asphalt liquid, (2) mixing the asphalt liquid with the aggregate uniformly, keeping on stirring, adding the anti-icing agent at 10-15 seconds before the stirring is finished, and discharging after the stirring is finished. The patching material can be stored at a room temperature for a long time after packaged in small bags, can be taken at any time for use and is convenient to use; the anti-icing temperature of the patching material can reach subzero 20 DEG C; the anti-icing performance can be comparable to that of the original anti-icing road surface; the traffic can be opened after patching; and an unimpeded road is ensured.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an anti-icing pavement pothole repair material, and also relates to a preparation method of the material. Background technique [0002] The highway transportation network is an important infrastructure to ensure fast passenger transportation and smooth logistics. At present, my country's highway construction has entered the stage of national networking, and expressways have become the backbone of the highway network system. However, the safety and transport efficiency of road traffic are easily affected by climate. Especially in the cold season, once the road surface freezes, it will not only greatly reduce the safety and transportation efficiency of road traffic, but also cause serious damage to the road surface (bridge deck) and auxiliary structures. When the road surface is icy, the anti-skid performance of the road surface is greatly reduced, and the ...

AI Technical Summary

Problems solved by technology

However, for the anti-icing pavement, there is still a lack of a suitable repair material: if the same hot-mixed mixture as the original pavement material is used, the mixing station needs to be started during construction

The mixing station produces a large amount of asphalt mixture at one time, and the general pothole repair requires a small amount of mixture. The remaining mixture cannot be stored for a long time, which will inevitably cause great waste and drive up repair costs.

In addition, the transportation of hot mix is ​​also very inconvenient

Although conventional cold patching can solve the storage problem of hot mix mixture, it cannot solve the problem of freezing of the repaired surface in cold seasons

That is to say, if conventional cold patching materials are used to repair potholes on the anti-icing road surface, the repaired surface will freeze during the ice and snow season, which will result in poor anti-skid performance of the road surface, which will even affect driving safety.

Moreover, when the road surface is covered with ice and snow, it is not easy to determine the location of the repair, and it is impossible to melt the ice by sprinkling salt locally

It can be seen that it is very difficult to solve the problem of local slippage on the road surface

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