Graphene composite rock asphalt anti-rutting modifier and preparation method thereof

A graphene composite, rock asphalt technology, applied in building components, building insulation materials, construction and other directions, to achieve the effects of improving engineering performance, improving adhesion, and excellent rutting resistance

Inactive Publication Date: 2019-04-05
青岛晟华新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing modified asphalt does not have a better modified asphalt for preventing rutting from damaging the asphalt pavement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A graphene composite rock asphalt modifier, consisting of the following components in parts by weight: 1 part of graphene, 5 parts of natural asphalt, 30 parts of asphalt, 7 parts of SBS, 2 parts of coupling agent, and 1 part of dispersing agent.

[0031] Described graphene is 5 layers of graphene oxide aqueous slurry of 5% concentration; Described natural asphalt is rock asphalt, and described rock asphalt granularity is 15 microns; Described asphalt is No. 70 pitch; Described SBS is thermoplastic butyl Styrene rubber particles; the coupling agent is a silane coupling agent; the dispersant is a KN4010 type naphthenic oil liquid material.

[0032] The preparation method of above-mentioned graphene composite rock asphalt modifier is:

[0033] 1) Put rock asphalt powder and graphene oxide slurry into a heating mixer for heating and mixing.

[0034] 2) Put the mixture in step 1) into the reaction kettle, and then put the asphalt into it for heating, shearing and stirring....

Embodiment 2

[0038] A graphene composite rock asphalt modifier, consisting of the following components in parts by weight: 3 parts of graphene, 7 parts of natural asphalt, 30 parts of asphalt, 7 parts of SBS, 2 parts of coupling agent, and 1 part of dispersing agent.

[0039] Described graphene is 5 layers of graphene oxide aqueous slurry of 5% concentration; Described natural asphalt is rock asphalt, and described rock asphalt granularity is 15 microns; Described asphalt is No. 70 pitch; Described SBS is thermoplastic butyl Styrene rubber particles; the coupling agent is a silane coupling agent; the dispersant is a KN4010 type naphthenic oil liquid material.

[0040] The preparation method is the same as in Example 1.

Embodiment 3

[0042] A graphene composite rock asphalt modifier, consisting of the following components in parts by weight: 5 parts of graphene, 10 parts of natural asphalt, 30 parts of asphalt, 10 parts of SBS, 3 parts of coupling agent, and 2 parts of dispersing agent.

[0043] Described graphene is 5 layers of graphene oxide aqueous slurry of 5% concentration; Described natural asphalt is rock asphalt, and described rock asphalt granularity is 15 microns; Described asphalt is No. 70 pitch; Described SBS is thermoplastic butyl Styrene rubber particles; the coupling agent is a silane coupling agent; the dispersant is a KN4010 type naphthenic oil liquid material.

[0044] The preparation method is the same as in Example 1.

[0045] The technical indicators of the asphalt mixture using the present embodiment modifier are as follows (the mass percentage of the modifier in the asphalt mixture is 8%):

[0046] (1) Marshall stability index: Marshall stability 11.2kN, flow value 3.2mm;

[0047]...

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Abstract

The invention relates to an asphalt modifier for a road, in particular to a graphene composite rock asphalt anti-rutting modifier and a preparation method thereof. The graphene composite rock asphaltanti-rutting modifier comprises, by weight, 1-5 parts of graphene, 5-10 parts of natural asphalt, 30-50 parts of asphalt, 5-10 parts of SBS (styrene-butadiene-styrene), 2-4 parts of coupling agents and 1-2 parts of dispersing agents. The graphene composite rock asphalt modifier mixture has excellent fatigue resistance and rutting resistance and has good stability at high temperature, the high-temperature performance of the asphalt mixture is improved, the rutting resistance is enhanced, the adhesive capacity of the asphalt and stones can be improved, and the preparation method is simple, moderate in process and low in cost.

Description

technical field [0001] The invention relates to an asphalt modifier for roads, in particular to a graphene composite rock asphalt anti-rutting modifier and a preparation method thereof. Background technique [0002] Asphalt pavement is widely used in highway construction because of its unique properties. With the rapid development of national highways, the amount of asphalt is also increasing day by day. Of course, with the quality requirements of road construction, the performance requirements for asphalt pavement are gradually becoming more stringent. SBS modified asphalt is the most commonly used modified asphalt at present. It uses modified base asphalt as raw material, adds a certain proportion of SBS modifier, and makes SBS evenly dispersed in asphalt by shearing, stirring and other methods. Modified asphalt sexual processing. Modified asphalt is an ideal material for paving high-grade road surfaces, and has become the consensus of the highway industry. [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/00C08K3/04
CPCC08L95/00C08L2201/08C08L2205/025C08L2205/035C08L53/02C08L91/00C08K3/042
Inventor 徐亮
Owner 青岛晟华新材料有限公司
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