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High-performance mineral compounded modified asphalt and preparation method thereof

A modified asphalt, high-performance technology, applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of reducing the quality of asphalt pavement, shortening the service life, increasing maintenance costs, etc., to improve the ability to resist high temperature softening and low temperature ductility, improve elasticity and toughness, and improve the effect of high temperature

Inactive Publication Date: 2019-03-29
广西交通职业技术学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the social economy, the continuous increase in the number of automobiles in my country and the rapid growth of e-commerce have promoted the rapid development of the logistics industry. Various large and heavy-duty logistics vehicles frequently appear on urban roads and expressways, making all kinds of The vehicle load on the road presents a development trend of high frequency and heavy load. The deformation of the original asphalt pavement is accelerated under the common circulation of high temperature, high frequency, heavy load, and rainwater, causing rutting, pushing, loosening, potholes, and grids. Cracks and other diseases intensify and accelerate, thereby reducing the quality of asphalt pavement, shortening its service life and increasing maintenance costs

Method used

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  • High-performance mineral compounded modified asphalt and preparation method thereof
  • High-performance mineral compounded modified asphalt and preparation method thereof
  • High-performance mineral compounded modified asphalt and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] According to one aspect of the present invention, this embodiment provides a kind of high-performance mineral composite modified asphalt and its preparation method, comprising the following steps:

[0027] (1) Weigh by weight: 86 parts of base asphalt, 2 parts of SBS modifier, 2 parts of rubber fine powder, 8 parts of manganese slag fine powder, the selected base asphalt is Esso 70 imported by COSCO SHIPPING International Trade Co., Ltd. #A grade road petroleum asphalt;

[0028] (2) Put the block matrix asphalt in a 170°C constant temperature box for heating to obtain the matrix asphalt raw material; dry the blast furnace water-quenched manganese slag waste slag in an oven at a temperature of 110°C ± 5°C until it contains water The rate is less than 1%, and the triethanolamine grinding aid of 0.5% of manganese slag weight is added for grinding treatment, and the manganese slag grinding powder is passed through a 200 mesh sieve to obtain the manganese slag fine powder mo...

Embodiment 2

[0035] According to one aspect of the present invention, this embodiment provides a kind of high-performance mineral composite modified asphalt and its preparation method, comprising the following steps:

[0036](1) Weigh by weight: 84 parts of base asphalt, 4 parts of SBS modifier, 1 part of rubber fine powder, 12 parts of manganese slag fine powder, the selected base asphalt is Esso 70 imported by COSCO SHIPPING International Trade Co., Ltd. #A grade road petroleum asphalt;

[0037] (2) Put the block matrix asphalt in a 170°C constant temperature box for heating to obtain the matrix asphalt raw material; dry the blast furnace water-quenched manganese slag waste slag in an oven at a temperature of 110°C ± 5°C until it contains water The rate is less than 1%, and the triethanolamine grinding aid of 0.5% of manganese slag weight is added for grinding treatment, and the manganese slag grinding powder is passed through a 200 mesh sieve to obtain the manganese slag fine powder mod...

Embodiment 3

[0044] According to one aspect of the present invention, this embodiment provides a kind of high-performance mineral composite modified asphalt and its preparation method, comprising the following steps:

[0045] (1) Weigh by weight: 82 parts of base asphalt, 6 parts of SBS modifier, 4 parts of rubber fine powder, 10 parts of manganese slag fine powder, the selected base asphalt is Esso 70 imported by COSCO SHIPPING International Trade Co., Ltd. #A grade road petroleum asphalt;

[0046] (2) Put the block matrix asphalt in a 170°C constant temperature box for heating to obtain the matrix asphalt raw material; dry the blast furnace water-quenched manganese slag waste slag in an oven at a temperature of 110°C ± 5°C until it contains water The rate is less than 1%, and the triethanolamine grinding aid of 0.5% of manganese slag weight is added for grinding treatment, and the manganese slag grinding powder is passed through a 200 mesh sieve to obtain the manganese slag fine powder m...

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Abstract

High-performance mineral compounded modified asphalt is disclosed, including, by weight, 80-86 parts of matrix asphalt, 2-6 parts of an SBS modifier, 1-4 parts of fine rubber powder, and 8-14 parts offine manganese slag powder. A preparation method of the high-performance mineral compounded modified asphalt is further disclosed. The method includes heating the matrix asphalt to obtain a matrix asphalt raw material; adding the SBS modifier into the matrix asphalt in a flowing state; sieving the asphalt colloid with the temperature being maintained at 175-190 DEG C; adding the fine manganese slag powder, the fine rubber powder and a stabilizer in order in a state that the temperature of the asphalt colloid is maintained at 175-190 DEGC, and stirring the mixture for 2 h; developing the blended asphalt colloid at 175-190 DEG C; and cooling the completely developed asphalt colloid until the surface is smooth to obtain the modified asphalt. The high-temperature stability, adhesive force, toughness, resistance to stress deformation and durability of the modified asphalt are effectively improved, so that the modified asphalt has excellent properties for pavement use and a high cost-performance ratio.

Description

technical field [0001] The invention relates to the technical field of modified asphalt, in particular to a high-performance mineral compound modified asphalt and a preparation method thereof. Background technique [0002] Asphalt pavement has the advantages of smooth surface, no joints, comfortable driving, small vibration, low noise, wear resistance, no dust, easy cleaning, short construction period, easy maintenance and repair, renewable utilization, and suitable for phased construction. It is widely used in cities in our country Among the roads and expressways, more than 85% of the urban roads and expressways built in our country use asphalt pavement. With the rapid development of the social economy, the continuous increase in the number of automobiles in my country and the rapid growth of e-commerce have promoted the rapid development of the logistics industry. Various large and heavy-duty logistics vehicles frequently appear on urban roads and expressways, making all k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L19/00C08K3/36C08K3/22C08K3/00
CPCC08K2003/2224C08K2003/2227C08L95/00C08L2205/03C08L53/02C08L19/003C08K3/36C08K3/22C08K3/00
Inventor 覃峰陈其龙唐银青何本东赖崇才莫品疆何壮彬盘霞
Owner 广西交通职业技术学院
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