KR850000500A - Preparation and processing method of fiber mixed road paving additive - Google Patents

Abstract

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Description

Preparation and processing method of fiber mixed road paving additive

Since this is an open matter, no full text was included.

1 is a cross-sectional view of a state of paving fiber-filled asphalt concrete in the original road substrate.

2 is a cross-sectional view of a first layer, a second layer, and a fatigue adsorption only intermediate layer (SAMI) packed on a substrate.

3 is a cross-sectional view showing the surface holding seal in the extruder met process.

As this is a public information case, the full text is not included.

Claims (10)

A method for producing a fiber mixing road pavement additive by mixing asphalt and fiber in a room temperature mixing method, a heat mixing method, and a penetration method. The fibers used according to claim 1 are natural fibers, metal fibers, silicate fibers, regenerated fibers, semisynthetic fibers, condensation type (polyamide type, polyester type, polyurethane type, polyurea type) and addition polymerization type (polyethylene type, Polyvinyl chloride-based, polyfluoroethylene-based, polyvinyl alcohol-based, polyacrylonitrile-based, polypropylene-based) fibers of one of the synthetic fibers, suitably an addition polymerization type synthetic resin, most preferably polypropylene Method for producing a fiber mixed road packaging additive, characterized in that the short fibers. The method of claim 1, when the room temperature mixing formula is used, the fibers are mixed in the asphalt or concrete mixing device when the mixture falls or continuously supplied to the mixing belt, and the mixture temperature is maintained at 150 ℃ or less, suitably 137 ℃ or less , The method for producing a fiber mixed road packaging additive, characterized in that the concentration of the fiber to be added is at least 0.1% by weight, suitably at least 0.5% by weight. In the case of using the permeation method, the fiber is directly added to the mixture of cation or anion emulsified asphalt and the mixture in the slurry mixing apparatus, fractionally added, or previously added to the mixture and mixed with the asphalt. , The slurry mixing is carried out in the mixer before the mixture is put into the spray container, the soil mixture of the added fiber is 0.1 to 1.5% by weight, suitably 0.3 to 0.5% by weight of the fiber mixing road Way. The method of claim 1 wherein the high temperature mixing formula is used in the mixing apparatus during the drying cycle with the addition of fibers with anti-depilation additives, and from 0.1 to 0.9% by weight, suitably from 0.3 to 0.5% by weight, of the mixture. The method for producing a fiber mixing road paving additive, which is preferably added at a temperature of 137 ° C or less. A process for treating a fiber mixing road pavement additive produced by the method of the present invention in a room temperature mixing, heating mixing, and penetration method. In the case of using the mixed-temperature method according to claim 6, 0.1% of the added fiber is added to supplement the asphalt adsorbed by the fiber, and fat is not added. Fill the hole with an excess of about 5% (volume) of the mixture and add about 0.1 cm to 1.0 cm, preferably 0.3 cm higher at every 7.6 cm depth when using manual compaction, compared to the usual case at every 7.6 cm depth. After applying the layer, the adhesive is adhered and the fiber mixture is used where there is no thin overlay leveling course or Saucer-type patch over the flat surface. Method of treating road paving additives. In the case of using the infiltration method, slurry mixing is performed in the mixer before the mixture is put into the spray bottle, and further mixing in the spray bottle is prevented. Use a spray container with a narrow container and one movable blade, keep the amount of slurry in the spray container to a minimum, and use only an afterssion when using a double container spray container, and adjust the amount of slurry in the spray container. Maintaining it again to the minimum, and using an improved spray container combined with the base plate to minimize the bottom contact surface, the asphalt emulsion content is adjusted according to the amount of surface portion absorbed by the fiber mixing method . According to claim 6, when the high temperature mixing method is used, the pavement surface is treated with a vibrating steel roller, and when a fiber reinforced mixture is applied to the open friction layer, a reinforcing film is installed between the friction layer and the lower surface layer to generate high pressure water. And a fatigue adsorption film intermediate layer (SAMI) between the first layer (6) and the second layer (4) to increase strength, durability, and flexibility. The fiber-mixed road pavement additive prepared according to the present invention is treated with an Extrudamat having a diameter of 3 to 30 cm, preferably a diameter of 3 to 5 cm, when using the highway waterproof membrane. The extruder met applicator is attached to the dispersing rod of the pump action seal device, and the fiber-mixed asphalt mixture is released and packaged within 10 to 50 minutes, preferably within 30 minutes, and the mixing degree in the packaging container is minimized. The mixture is mixed only to maintain uniform dispersion of the fibers in the asphalt mold, and the speed of the stirrer is kept as slow as possible, at which time the temperature is controlled below 170 ° C, suitably below 141 ° C, for temperature control. A method for treating a fiber mixing road pavement additive, comprising using a device having a double wall oil circulation heater. ※ Note: The disclosure is based on the initial application.