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High-temperature-resistant anti-rutting asphalt mixture

An asphalt mixture, anti-rutting technology, applied in the field of asphalt mixture, to achieve appropriate component distribution ratio, improve water stability, and improve the effect of anti-cracking

Inactive Publication Date: 2021-04-20
马瓯丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of high temperature resistant anti-rutting asphalt mixture and its preparation method, to solve the problems in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048]S1: Prepare material;

[0049]S2: Preparation of porous addition:

[0050]2-bromo isobutyl bromide, diethyl ether dissolves, stirred for 10 min, resulting in solution A; glycol, diethyl ether dissolves, stirred for 10 min, then placed in an ice water bath, slowly drop the solution A, stir for 16 h at room temperature, resulting in Agent;

[0051]Take the hair distribution, catalyst, 1,1,4,7,10,10-hexamethylene ethylethyltrine and styrene, mixed stirred for 10 min, frozen, evacuated, heated to material in a nitrogen gas, and then placed It was heated under an oil bath at 110 ° C, toluene and alumina were added, and stirred for 15 min, and ethanol was added, and the precipitate was collected, and the vacuum dried at 60 ° C was added to obtain modified polystyrene;

[0052]Changeive polystyrene, toluene dissolved, then add triethyl aluminum toluene solution, stir for 12h, and add left-transcoxy ester in a nitrogen environment, continue to freeze, vacuum 5min, heat to material dissolution, an...

Embodiment 2

[0064]S1: Prepare material;

[0065]S2: Preparation of porous addition:

[0066]2-bromo isobutyl bromide, diethyl ether dissolves, stirred for 15 min to give a solution A; glycol, diethyl ether dissolves, stirred for 15 min, then placed in an ice water bath, slowly add solution A, stir for 18 h at room temperature, resulting in Agent;

[0067]Take the hair distribution, catalyst, 1,1,4,7,10,10-hexamethylene ethylenedica and styrene, mixed for 15 min, frozen, vacuum, heat to material in a nitrogen environment to material dissolution, and then placed It was heated under an oil bath at 112 ° C, toluene and alumina were added, and stirred for 18 min, then ethanol was added, the precipitate was collected, and the vacuum dried at 60 ° C was added to obtain modified polystyrene;

[0068]Changed polystyrene, toluene dissolved, then add triethyl aluminum toluene solution, stir for 13 h, and adding left-transcoxy ester in a nitrogen environment, continues to freeze, vacuum 6min, heating to material disso...

Embodiment 3

[0080]S1: Prepare material;

[0081]S2: Preparation of porous addition:

[0082]2-bromo isobutyl bromide, diethyl ether dissolves, stirred for 20 min, to obtain solution A; glycol, diethyl ether dissolve, stirred for 20min, then placed in an ice water bath, slowly drop it slowly, stirred at room temperature for 20 h, resulting in Agent;

[0083]Take the hair distribution, catalyst, 1, 1, 4, 7, 10, 10-hexamethylene ethylenedica and styrene, mixed for 20 min, frozen, evacuated, heat to material in a nitrogen environment, and then placed It was heated at 115 ° C for 7.5 h, toluene and alumina were added, and stirred for 20min, then ethanol was added, and the precipitate was collected, dried at 60 ° C to obtain modified polystyrene;

[0084]Take modified polystyrene, toluene dissolve, then add triethyl aluminum toluene solution, stir for 14 h, and add left-transcoxy ester in a nitrogen, continue to freeze, vacuum 7min, heat until the material is dissolved, and then reacted at 95 ° C 7h, anhydrous e...

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Abstract

The invention discloses a high-temperature-resistant anti-rut asphalt mixture which comprises the following raw materials in parts by weight: 15-18 parts of pretreated asphalt, 30-35 parts of zinc chloride, 5-10 parts of heat conduction material, 8-12 parts of glass fiber, 5-10 parts of admixture and 90-100 parts of aggregate. The pretreated asphalt is prepared from the following raw materials in parts by weight: 8-14 parts of modified asphalt, 6-8 parts of dihydroxyl-terminated polydimethylsiloxane, 14-16 parts of polycaprolactone glycol, 2-4 parts of 1, 6-hexamethylene diisocyanate, 0.5-1 part of dibutyltin dilaurate and 4-6 parts 4, 4'-dimethyl-2, 2'-dipyridyl, and 0.5-0.8 part of 1, 4-butanediol. The preparation method is reasonable in process design and proper in component proportion, the prepared asphalt mixture has excellent anti-rutting capacity, the high-temperature stability and the water stability of the asphalt mixture are improved, and the asphalt mixture can be applied to roads with large traffic volume and more heavy-load and overload vehicles and has higher practicability.

Description

Technical field[0001]The present invention relates to the field of asphalt mixing materials, and in particular, a high temperature resistant to the rutting asphalt mixture.Background technique[0002]Asphalt mixture is a composite material, mainly composed of asphalt, coarse aggregate, fine aggregate, ore powder, and some addition of polymer and tinellulose; mixed with these different quality and quantities form different structures, And have different mechanical properties; this material is widely used in road traffic and housing construction in various cities.[0003]Nowadays, the asphalt pavement is long-term exposed to outdoor, temperature changes, and ultraviolet radiation can lead to aging of the asphalt mixture, while high temperature stability of the asphalt mixture, high-temperature stability, anti-carve performance.[0004]In response to this problem, we designed a high-temperature anti-lax asphalt mixture and its preparation method, which is the technical problem we need to sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/32C04B111/20
CPCC04B26/32C04B24/36C04B24/283C04B24/125C04B24/40C04B24/128C04B24/026C04B24/281C04B24/282C04B2103/0068C04B24/2676C04B24/045C04B22/12C04B22/085C04B22/0013C04B22/124C04B14/42C04B14/02C04B18/146C04B18/08C04B14/00Y02W30/91
Inventor 马瓯丽
Owner 马瓯丽
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