A red mud fiber composite material, its preparation method and its application in modified asphalt

A technology of fiber composite materials and modified asphalt, which is applied to the mixture and preparation of composite materials applied to asphalt, red mud fiber composite materials, and can solve the problems of occupying land resources and affecting the ecological environment, so as to reduce diseases and reduce construction costs. Cost, the effect of reducing the cost of road maintenance

Active Publication Date: 2022-02-22
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the enhancement of environmental protection awareness, red mud is currently mainly discharged by damming and stockpiling. The management and stockpiling costs of each ton of red mud reach 50-100 yuan, which not only occupies land resources, but also strongly alkaline and high salinity red mud Waste may also affect the ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A red mud fiber complex modified asphalt mixture, including the following materials:

[0057] (1) Asphalt mixture ingredients: According to the number of parts, including the following components: 30 parts of limestone, 30 grasted materials, 4 parts of 70 # matrix asphalt, 4 limestone mine powder, red mud fiber composite change Two sex materials, various technical indicators of all raw materials meet the relevant requirements in "Highway Asphalt Pavement Construction Technical Specifications" (JTG F40-2004); Asphalt Mixed Type: AC-20.

[0058] (2) Red mud fiber composite modified materials: According to the weight of the weight: 60 parts of the red mud, 10 fibers, 10 pieces of lime, 10 cement, 10 white mud, where the redished is sintered French red mud, the fiber is basalt fiber.

[0059] Preparation of the red mud fiber complex modified material includes the following steps:

[0060] (1) First, the sintering method is rediscipated, the lime, cement, and white mud is broken...

Embodiment 2

[0071] A red mud fiber complex modified asphalt mixture, including the following materials:

[0072] (1) Asphalt mixture ingredients: According to the number of parts, including the following components: 65 grades of granite, 25 grades, 5 grades, 5 parts of the 70 # matrix asphalt, 3 limestone mine powder, red mud fiber composite change Two sex materials, various technical indicators of all raw materials meet the relevant requirements in "Highway Asphalt Pavement Construction Technical Specifications" (JTG F40-2004); Asphalt Mixed Type: AC-20.

[0073] (2) Red mud fiber composite modified materials: According to weight parts, including the following components: 40 parts of red mud, 5 fibers, 2 pieces of lime, 3 cement, 10 white mud, where the red mud is Bayer Diapa, the fiber is carbon fiber.

[0074] Preparation of the red mud fiber complex modified material includes the following steps:

[0075] (1) First, the Bayer method is redished, the lime, cement, and white mud is put into...

Embodiment 3

[0086] A red mud fiber complex modified asphalt mixture, including the following materials:

[0087] (1) Asphalt mixture ingredients: According to the number of parts, including the following components: 70 copies of Green Rock, 20 copies, 3 parts of Hui Green Rock, 3 parts of the 70 # matrix asphalt, 3 limestone mine powder, red 4 copies of mud fiber complex modification materials, various technical indicators of all raw materials meet the relevant requirements in the "Technical Specifications of Highway Asphalt Pavement" (JTG F40-2004); asphalt mixing type: AC-20.

[0088] (2) Red mud fiber composite modified materials: According to weight parts, including the following components: 80 red muds, 10 fibers, 3 pieces of lime, 3 cement, 4 white mud, where the red mud is sintered Diapa, the fibers are polyester fibers.

[0089] Preparation of the red mud fiber complex modified material includes the following steps:

[0090] (1) First, the sintering method is red mud, and the lime, ce...

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Abstract

The invention belongs to the technical field of modified asphalt, and in particular relates to a red mud fiber composite material, its preparation method and its application in modified asphalt. The invention provides a red mud fiber composite material, which is obtained by drying the production waste red mud, slaked lime, cement and white mud respectively, mixing them in proportion, and ball milling to obtain a powder mixture and then mixing it with fibers. The main component of the red mud fiber composite material is production waste, and when applied to asphalt mixture, it can effectively enhance the adhesion of aggregates in the asphalt mixture and improve the stability of asphalt. The preparation method of the asphalt mixture is as follows: coarse aggregate , fine aggregate premixing, adding asphalt, red mud fiber composite material and filler in turn to obtain the modified asphalt mixture after stirring evenly, the modified asphalt mixture obtained by this method has good thermal stability, high temperature rutting resistance , Low temperature crack resistance and water stability are significantly improved, reducing the disease of asphalt pavement during service and reducing road maintenance costs.

Description

Technical field [0001] The present invention belongs to road engineering materials and preparation techniques, and more particularly to a red mud fiber composite material, a method of preparing a redished fiber composite, a composite material applied to a mixture obtained by asphalt and a preparation method. Background technique [0002] The information disclosed in the background is disclosed only to increase the understanding of the overall background of the present invention, and is not necessarily considered to admit or imply that the information is intended to be a prior art known to those skilled in the art. [0003] With the continuous development of my country's economy, my country's road construction also entered a rapid development period. As of 2018, my country's motorway has exceeded 130,000 kilometers, and the road mileage is 4 million kilometers. In actual engineering construction, the road surface of the high-grade road is a semi-rigid base asphalt pavement, and th...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C04B18/04C04B26/26C04B14/46C04B16/06C04B14/38C04B16/02C04B111/20C04B111/27
CPCC04B40/0039C04B26/26C04B2111/0075C04B2111/27C04B2111/20Y02W30/91
Inventor张吉哲姚占勇孙法合梁明蒋红光王凯
OwnerSHANDONG UNIV