Multifunctional granulated fiber for asphalt mixture road, and preparation method thereof

A kind of asphalt mixture, multi-functional technology, applied in the field of multi-functional granulated fiber for asphalt mixture road and its preparation, can solve the problems of easy agglomeration of steel wool fiber and unfavorable engineering application, so as to improve the reinforcement effect and reduce the time spent , the effect of system stability

Pending Publication Date: 2021-04-30
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, steel wool fibers are easy to agglomerate, which is not conducive to practical engineering applications

Method used

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  • Multifunctional granulated fiber for asphalt mixture road, and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A multifunctional granulated fiber for asphalt mixture road,

[0034] (1) average length is 5mm steel wool fiber and brucite fiber dispersion;

[0035] (2) Take raw materials by weighing 90%, 0%, 3.0%, 3.0%, 3.0%, 1.0% by volume ratio of steel wool fiber, brucite fiber, heavy oil, aromatic oil, bentonite, diatomaceous earth;

[0036] (3) Put the weighed raw materials into the mixer and stir evenly, and the mixed raw materials need to stand still in the stuffing bucket for 10-15 minutes;

[0037] (4) Rotate and extrude the rested raw materials with a granulator to obtain multifunctional granulated fibers with a diameter of 4 mm and a length of 0.8 to 1 cm.

Embodiment 2

[0039] A multifunctional granulated fiber for asphalt mixture road,

[0040] (1) average length is 5mm steel wool fiber and brucite fiber dispersion;

[0041] (2) Take raw materials by weighing 72%, 18%, 3.0%, 3.0%, 3.0%, 1.0% by volume ratio of steel wool fiber, brucite fiber, heavy oil, aromatic oil, bentonite, diatomite;

[0042] (3) Put the weighed raw materials into the mixer and stir evenly, and the mixed raw materials need to stand still in the stuffing bucket for 10-15 minutes;

[0043] (4) Rotate and extrude the rested raw materials with a granulator to obtain multifunctional granulated fibers with a diameter of 4 mm and a length of 0.8 to 1 cm.

Embodiment 3

[0045] A multifunctional granulated fiber for asphalt mixture road,

[0046] (1) average length is 5mm steel wool fiber and brucite fiber dispersion;

[0047] (2) Take raw materials by weighing 54%, 36%, 3.5%, 2.5%, 3.0%, 1.0% by volume ratio of steel wool fiber, brucite fiber, heavy oil, aromatic oil, bentonite, diatomaceous earth;

[0048] (3) Put the weighed raw materials into the mixer and stir evenly, and the mixed raw materials need to stand still in the stuffing bucket for 10-15 minutes;

[0049](4) Rotate and extrude the rested raw materials with a granulator to obtain multifunctional granulated fibers with a diameter of 4 mm and a length of 0.8 to 1 cm.

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Abstract

The invention discloses a multifunctional granulated fiber for an asphalt mixture road. The multifunctional granulated fiber comprises 0-90% of hard fiber, 0-90% of alkaline mineral soft fiber, 3.0-3.5% of heavy oil, 1.5-3.5% of aromatic hydrocarbon oil, 2.0-4.0% of bentonite and 0.5-1.0% of diatomite. The preparation method comprises the following steps: dispersing hard fibers and alkaline mineral soft fibers in advance; weighing the raw materials in proportion, and putting the raw materials into a stirrer for mixing; standing the mixed raw materials in a material brewing barrel; and then rotating and extruding the raw materials into multifunctional granulated fibers by using a granulator. According to the invention, the obtained granulated fiber can give full play to the unique advantages of the two fibers, remarkably improves the pavement performance of an asphalt mixture and the asphalt surface crack heat self-healing, snow melting and deicing efficiency and the like under the induction heating condition on the premise of considering good dispersity, realizes the multifunction of the pavement fiber asphalt mixture, and provides a new path for improving the dispersity of the fibers in the asphalt mixture and improving the use quality and durability of a highway asphalt pavement.

Description

technical field [0001] The invention relates to the field of road asphalt pavement materials, in particular to a multifunctional granulated fiber for asphalt mixture roads and a preparation method thereof. Background technique [0002] Road deicing has always been a major concern of traffic maintenance departments at home and abroad. Ice and snow cover in winter reduces the friction coefficient of the road surface and the braking effect of the vehicle is insufficient, resulting in frequent traffic accidents in winter. There are five main methods of deicing that are commonly used. (1) mechanical method, using mechanical means such as snow plows to deicing; (2) chemical method, deicing by sprinkling snow melting salt; (3) self-stress elastic pavement method, adding high elastic materials inside the road surface, the material Under the action of vehicle load, it will be deformed due to uneven force, which will promote the breaking of the ice layer on the road surface and effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/08
CPCC04B40/0039C04B14/46C04B14/48C04B14/08C04B14/104C04B24/08
Inventor 熊锐李松杨发常明丰盛燕萍关博文牛冬瑜李科宏蒋汶玉宗有杰李闯冯宝珠纪括王昊宇
Owner CHANGAN UNIV
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