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Modified bamboo fiber reinforced asphalt mixture and preparation method thereof

A technology of asphalt mixture and bamboo fiber, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc.

Active Publication Date: 2021-07-30
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a modified bamboo fiber reinforced asphalt mixture and its preparation method for the deficiencies of the existing fiber asphalt mixture

Method used

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  • Modified bamboo fiber reinforced asphalt mixture and preparation method thereof
  • Modified bamboo fiber reinforced asphalt mixture and preparation method thereof
  • Modified bamboo fiber reinforced asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The preparation of modified bamboo fiber reinforced asphalt mixture, concrete steps are:

[0041] 1) Bamboo fiber modification process: Weigh 50g of dried bamboo fiber and 5g of AESO resin (the amount of AESO accounts for 10% of the mass of bamboo fiber), mix AESO and acetone in a weight ratio of 1:2 to form a solution, and spray it evenly on the Bamboo fiber surface, and then placed in an oven at 50 ° C for 30 minutes to make the acetone completely volatilize. Weigh 5.5g of MDI (its mass accounts for 10% of the total mass of AESO and bamboo fiber), add 0.55g of dibutyltin dilaurate (DBT, its mass accounts for 10% of the mass of MDI) to spray the surface of the fiber, mix well and put it in the oven Dry at 103°C for 10 minutes to obtain the modified bamboo fiber.

[0042] 2) Marshall sample preparation of modified bamboo fiber asphalt mixture: basalt aggregates are divided into three grades of 10-20mm, 5-10mm, and 0-3mm according to particle size, and the basalt aggreg...

Embodiment 2

[0044] The preparation of modified bamboo fiber reinforced asphalt mixture composite material, the specific steps are:

[0045] 1) Bamboo fiber modification process: Weigh 50g of dried bamboo fiber, 7.5g of AESO resin (the amount of AESO accounts for 15% of the mass of bamboo fiber), mix AESO and acetone in a weight ratio of 1:2 to form a solution, and spray evenly with a watering can Put it on the surface of bamboo fiber, then put it in an oven and dry it at 50°C for 30 minutes to make the acetone completely volatilize. Weigh 5.75g of MDI (its mass accounts for 10% of the total mass of AESO and bamboo fiber), add 0.575g of dibutyltin dilaurate (DBT, its mass accounts for 10% of the mass of MDI) to spray the surface of the fiber, mix well and put it in the oven Dry at 103°C for 10 minutes to obtain modified bamboo fiber.

[0046] 2) Marshall sample preparation of modified bamboo fiber asphalt mixture: basalt aggregates are divided into three grades of 10-20mm, 5-10mm, and 0-3...

Embodiment 3

[0048] The preparation of modified bamboo fiber reinforced asphalt mixture, concrete steps are:

[0049] 1) Bamboo fiber modification process: Weigh 50g of dried bamboo fiber and 10g of AESO resin (the amount of AESO accounts for 20% of the mass of bamboo fiber), mix AESO and acetone in a weight ratio of 1:2 to form a solution, and spray it evenly on the Bamboo fiber surface, and then placed in an oven at 50 ° C for 30 minutes to make the acetone completely volatilize. Weigh 6g of MDI (its mass accounts for 10% of the total mass of AESO and bamboo fiber), add 0.6g of dibutyltin dilaurate (DBT, its mass accounts for 10% of the mass of MDI) to spray the surface of the fiber, mix well and put it into the oven 103 Dry at ℃ for 10 minutes to obtain modified bamboo fiber.

[0050] 2) Marshall sample preparation of modified bamboo fiber asphalt mixture: basalt aggregates are divided into three grades of 10-20mm, 5-10mm, and 0-3mm according to particle size, and the basalt aggregates...

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Abstract

The invention belongs to the technical field of fiber reinforced asphalt mixtures, and particularly relates to a modified bamboo fiber reinforced asphalt mixture and a preparation method thereof, epoxidized soybean oil acrylate (AESO) and diphenylmethane diisocyanate (MDI) are adopted to modify bamboo fibers, and then the modified bamboo fibers are added in the preparation process of the asphalt mixture for reinforcement. The modified bamboo fiber reinforced asphalt mixture prepared by the invention is environment-friendly, and has good mechanical properties, high-temperature stability, low-temperature crack resistance and water stability.

Description

technical field [0001] The invention belongs to the technical field of fiber-reinforced asphalt mixture, and in particular relates to a modified bamboo fiber-reinforced asphalt mixture and a preparation method thereof. Background technique [0002] Adding an appropriate amount of fiber to asphalt mixture can effectively improve the durability of asphalt pavement. Fibers are added to asphalt mixture to play the role of reinforcement, adsorption and viscosity increase, and can effectively improve the road performance of asphalt mixture such as high temperature stability and low temperature stability. The fibers currently used in asphalt mixtures mainly include polymer fibers, inorganic mineral fibers, glass fibers and natural plant fibers. Polymer fibers need to consume a lot of non-renewable resources in the production process, which is inconsistent with the concept of low-carbon emission reduction advocated now. Moreover, polymer fiber is a kind of highly polluting chemica...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B20/02C04B20/10C04B18/26C04B111/20
CPCC04B26/26C04B20/023C04B20/1022C04B2111/0075C04B2111/20C04B14/14C04B18/141C04B18/26Y02W30/91
Inventor 邱仁辉刘致辉孙琳莉赖春祥吴宇超於德美冯超刘文地付腾飞吴淑一
Owner FUJIAN AGRI & FORESTRY UNIV
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