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Nano-composite natural rock modified asphalt mixture additive

A technology of asphalt mixture and modified asphalt, which is applied in the field of engineering materials and can solve the problems of reduced ductility of asphalt, insufficient low-temperature crack resistance, and insufficient stability of water damage resistance.

Active Publication Date: 2021-12-03
广西路冠科技投资发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the influence of factors such as origin and source, in practice natural rock asphalt as a modifier still has high temperature resistance to deformation and water damage resistance is not stable enough, Insufficient low-temperature crack resistance and other shortcomings, excessive rock asphalt will also lead to problems such as reduced asphalt ductility, so it is necessary to further develop new nanocomposite natural rock modified asphalt mixture additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A nanocomposite natural rock modified asphalt mixture additive, prepared from the following raw materials in parts by weight: 35 parts of rock asphalt, 25 parts of waste tire rubber powder, 10 parts of low-density polyethylene LDPE, 5 parts of nano diatomite, wood 15 parts of vegan fiber, 10 parts of nano-zinc oxide.

Embodiment 2

[0033] A nanocomposite natural rock modified asphalt mixture additive, prepared from the following raw materials in parts by weight: 30 parts of rock asphalt, 30 parts of waste tire rubber powder, 1 part of high-density polyethylene HDPE, 10 parts of nano diatomite, wood 10 parts of vegan fiber, 10 parts of nano-zinc oxide.

Embodiment 3

[0035] A nanocomposite natural rock modified asphalt mixture additive, prepared from the following raw materials in parts by weight: 40 parts of rock asphalt, 20 parts of waste tire rubber powder, 20 parts of polypropylene PP, 1 part of nano diatomite, lignin fiber 20 parts, 5 parts of nano zinc oxide.

[0036] In order to further illustrate the technical effects of the present invention, the applicant set up the following comparative examples.

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Abstract

The invention belongs to the technical field of engineering materials, and particularly relates to a nano-composite natural rock modified asphalt mixture additive. The additive is prepared from natural rock asphalt as a main raw material and waste tire rubber powder, a polymer, nano-diatomite, lignin fibers, nano-zinc oxide and other raw materials as auxiliary materials, so the elasticity, adhesiveness and rigidity of an asphalt mixture are effectively improved, and the high-temperature deformation resistance, the low-temperature crack resistance and the water damage resistance of the compound rock modified asphalt mixture are remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of engineering materials, and in particular relates to a nanocomposite natural rock modified asphalt mixture additive. Background technique [0002] The composition and structure of ordinary petroleum asphalt determines its poor high and low temperature stability, easy flow at high temperature, brittle cracking at low temperature, insufficient elasticity and aging resistance, and ordinary petroleum asphalt cannot meet the requirements of high-grade road use. Modification of ordinary petroleum asphalt is a practical demand for road petroleum asphalt pavement materials. The promotion and application of modified asphalt composite materials for green and environment-friendly roads has become an inevitable way to build resource-saving and environment-friendly road materials. [0003] Rock asphalt is an asphalt-like substance produced by petroleum in the crevices of rocks after hundreds of millions of years of de...

Claims

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Application Information

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IPC IPC(8): C04B24/36C04B26/26
CPCC04B40/0039C04B26/26C04B2111/0075C04B2201/50C04B24/36C04B18/22C04B24/2611C04B14/08C04B18/26C04B22/06C04B14/02C04B14/06Y02W30/91
Inventor 盘力宁
Owner 广西路冠科技投资发展有限责任公司
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