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A multi-layer reinforced high-strength asphalt anti-rutting agent with industrial solid waste powder as the core

An anti-rutting agent and industrial solid waste technology, applied in building components, building thermal insulation materials, construction and other directions, can solve the problem that the performance of anti-rutting agent needs to be improved, and achieve win-win, easy mixing and low cost to improve the utilization of solid waste resources Effect

Active Publication Date: 2020-08-21
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it simply blends and extrudes No. 70 asphalt, solid waste, grafts and initiators, and the performance of the prepared anti-rutting agent needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0058] In addition, the present invention provides a method for preparing a multi-layer reinforced high-strength asphalt anti-rutting agent with the above-mentioned industrial solid waste powder as the core, including:

[0059] (1) Place red mud and boron mud in enamel trays respectively, and place them in an oven at 110±1°C to dry for 48 hours to fully dry red mud and boron mud. Preliminarily crush the dried red mud and boron mud respectively, and then grind them with a ball mill for 15-30 minutes. After sieving, the specific surface area is 360-430m 2 / kg red mud fine powder and specific surface area is 300~430m 2 / kg of boron mud fine powder;

[0060] (2) Pour red mud fine powder and boron mud fine powder into a porcelain evaporating dish, and place in a high-temperature furnace (500°C-600°C) to heat for 6-8h; then take out the porcelain evaporating dish and place it in a desiccator, and cool to Standby at room temperature;

[0061] (3) Weigh the recovered waste polyolef...

Embodiment 1

[0066] The raw material composition and weight ratio of the high-strength asphalt anti-rutting agent of the embodiment of the present invention are as follows: 50 parts of recycled waste polyethylene particles, the specific surface area is 360-400m 2 10 parts per kg of sintered red mud fine powder, the specific surface area is 350-430m 2 5 parts per kg of boron mud fine powder, 30 parts of rock asphalt with a penetration of 10, a particle size of 300 mesh, and an asphalt content of 95%, 0.02 parts of vinyl trichlorosilane, and 0.5 parts of phthalate plasticizers .

[0067] The asphalt anti-rutting agent of the embodiment of the present invention is prepared according to the following steps:

[0068] (1) Place red mud and boron mud in enamel trays respectively, and place them in an oven at 110±1°C to dry for 48 hours to fully dry red mud and boron mud. Preliminarily crush the dried red mud and boron mud respectively, and then grind them with a ball mill for 20 minutes. After ...

Embodiment 2

[0073] The raw material composition and weight ratio of the high-strength asphalt anti-rutting agent of the embodiment of the present invention are as follows: 45 parts of recycled waste polypropylene particles, the specific surface area is 380-430m 2 15 parts / kg Bayer process red mud fine powder, the specific surface area is 300-350m 2 8 parts of boron mud fine powder per kg, 35 parts of deoiled asphalt with a penetration of 5, a particle size of 400 mesh, and a bitumen content of 100%, 0.03 part of γ-chloropropyl trichlorosilane, and benzene polyester plasticizer 0.4 parts of the agent.

[0074] The asphalt anti-rutting agent of the embodiment of the present invention is prepared according to the following steps:

[0075] (1) Place red mud and boron mud in enamel trays respectively, and place them in an oven at 110±1°C to dry for 48 hours to fully dry red mud and boron mud. Preliminarily crush the dried red mud and boron mud respectively, and then grind them with a ball mi...

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Abstract

The invention discloses a multi-layer reinforced high-strength asphalt anti-rutting agent using industrial solid waste powder as central nuclei. The anti-rutting agent comprises the following raw materials in parts by weight: 40-60 parts of recovered waste polyolefin, 10-15 parts of dry red mud fine powder, 5-10 parts of dry boron mud fine powder, 25-40 parts of hard asphalt, 0.02-0.05 part of a coupling agent and 0.2-0.6 part of a plasticizer. By using the surface activity of the red mud and boron mud powder after high-temperature calcination, a large number of strength center points are formed in the polyolefin resin, thereby greatly improving the strength of the polyolefin resin; the coated hard asphalt further improves the strength of the polyolefin resin; the anti-rutting agent effectively improves the rutting resistance of an asphalt mixture, and is also beneficial to improving the water stability of the mixture. The raw materials used are industrial solid waste, waste plastic materials and the like, therefore, the cost is low, high value-added utilization of the industrial solid waste and the waste plastics is realized, and the win-win purpose of improving the anti-rutting capacity of the asphalt pavement and recycling solid waste is achieved.

Description

technical field [0001] The invention relates to the field of road engineering materials, in particular to a multi-layer reinforced high-strength asphalt anti-rutting agent with industrial solid waste powder as the core, which is mainly used for the asphalt mixture pavement layer in road engineering to improve the asphalt mixing of the surface layer. The anti-rutting performance of the material. Background technique [0002] Asphalt pavement is the main structural form of high-grade highways and municipal roads in my country. With the continuous increase of traffic volume and axle load, especially in high temperature summer, more difficult rutting diseases generally appear. Rutting is the main form of asphalt pavement in recent years. form of destruction. Asphalt mixture is a kind of viscoelastic material. Due to the repeated action of traffic load, high temperature in summer and overloaded vehicles, vertical permanent deformation and plastic flow will occur in the asphalt, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L95/00C08K13/08C08K9/00C08K11/00
Inventor 梁明姚占勇蒋红光张吉哲
Owner SHANDONG UNIV