Asphalt modifier mixed with waste tire rubber powder and gilsonite resin

 

Powder-type asphalt modifier mixed with waste tire rubber powder and gilsonite resin, and its manufacturing method and manufacturing method of asphalt concrete using the same (FABRICATING ASPHALT CONCRETE USING THE SAME)

The relates to an asphalt modifier, and more particularly, rubber powder obtained by crushing waste tires to a particle size of 1.0 mm or less and gilsonite resin, which is a natural asphalt, are mixed at room temperature or polymerized at a high temperature and then pulverized. By using asphalt additives, powdered asphalt modifier mixed with waste tire rubber powder and gilsonite resin to improve both high and low temperature and aging characteristics of asphalt and its manufacturing method and method of manufacturing asphalt concrete using the same It is about.

Asphalt modifiers that are mixed with asphalt or added during the production process of asphalt concrete have been widely used for the purpose of improving the performance of asphalt pavement by improving the durability and flow resistance of such asphalt concrete. Due to high temperature, there are increasing concerns about various types of road damage, and efforts to apply asphalt modifiers and research and development of new materials are increasing. The conventional asphalt modifier described above is applied to the production site by adding only the facility for adding the asphalt modifier without having to replace the existing asphalt concrete production equipment, while the asphalt has excellent characteristics in terms of quality as a binder for road pavement. This has the advantage of being possible.

In order to achieve theabove object, the present , in the asphalt modifier, rubber powder obtained by crushing the waste tire to a particle size of a predetermined size; And gilsonite resin, wherein the waste tire rubber powder is 10% by weight to 90% by weight, and the guilsonite resin is composed of 10% by weight to 90% by weight of the waste tire rubber powder and gilsonite resin. To provide a powdered asphalt modifier.

The first step of heating the waste tire rubber powder and liquefied gilsonite resin at a high temperature of 160 ℃ or more; A second step of inserting the waste tire rubber powder and the gilsonite resin subjected to the heating process into a polymerization apparatus and then operating the polymerization apparatus to thermally polymerize; A third step of cooling the mixture of the thermally polymerized waste tire rubber powder and the gilsonite resin to a temperature of 30 ° C. or less and pulverizing it to a particle size of 1.0 mm or less; A fourth step of heating the aggregate and classifying the particles by particle size into a mixing device; A fifth step of mixing the aggregate with the filler by adding a filler and an asphalt modifier in a powder state according to the third step; And it provides a method for producing asphalt concrete using a powdered asphalt modifier mixed with the waste tire rubber powder and Gilsonite resin comprising the sixth step of mixing by mixing the normal asphalt in a spraying method to the mixing device.