Light-duty modified asphalt

A modified asphalt and light-load technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of waste and high cost of colored asphalt, and achieve the effect of cheap price, bright color and easy construction

Inactive Publication Date: 2014-09-03
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of colored asphalt mentioned above is high, and in the use of parks, sidewalks, and non-motorized vehicle lanes, both performance and price have caused waste.

Method used

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  • Light-duty modified asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A light-load modified asphalt is prepared according to the following steps:

[0026] Raw materials: 34 parts of petroleum resin, 28 parts of rubber operating oil, 6 parts of thermoplastic styrene-butadiene rubber (SBS), 8 parts of low-density polyethylene (LDPE), 0.01 part of dioctyl phthalate (DOP), 0.02 parts of polystyrene Ethylene wax is prepared as raw material, in parts by weight; the petroleum resins are C9 resin, coumarone resin and C5 resin with a mass ratio of 1.5:5:2.

[0027] (1). Preparation of prepolymer

[0028] Mix the above-mentioned petroleum resin, rubber process oil, LDPE, DOP and polyethylene wax in the crucible first, put the crucible into an oil bath device with a temperature control of 155°C to 165°C, melt and stir until there are no large particles, Enter the shearing machine, cut at 5000r / min for 10-15min to obtain the prepolymer;

[0029] (2). Preparation of light-load modified asphalt

[0030] Add SBS gradually to the prepared prepolymer, ...

Embodiment 2～5

[0032] Carry out according to following raw material, processing parameter, other are all identical with embodiment 1.

[0033]

[0034] The above light-load modified asphalt, according to 70# base asphalt as the standard, penetration: 60-80, softening point: >45°C, ductility (10°C, 15°C) >100CM, dynamic viscosity of asphalt at 135°C meets <3Pa. s. According to the standard chromaticity card, the chromaticity of the light-load modified asphalt of the present invention is relatively light, and the chromaticity ranges from 14 to 17, belonging to the light yellow system. The light color is easy to change the color, easy to mix with more color colorants, and the output color is bright. It is clearly pointed out in the road asphalt specification that the rotational viscosity of modified asphalt at 135°C is less than 3Pa.s, and the light-load modified asphalt of the present invention has a viscosity of 2.58Pa.s at 135°C. The smaller viscosity is easy to construct.

[0035] Accor...

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Abstract

The invention relates to a light-duty modified asphalt which is prepared from the following raw materials in parts by weight: 20-40 parts of petroleum resin, 20-40 parts of rubber process oil, 3-12 parts of thermoplastic styrene-butadiene rubber (SBS), 5-10 parts of low-density polyethylene (LDPE), 0.01 part of dioctyl phthalate (DOP) and 0.01-0.03 part of polyethylene wax. The light-duty modified asphalt is cheap; and according to the 70# matrix asphalt, the standard penetration degree is 60-80, the softening point is greater than 45 DEG C, the ductility (10 DEG C, 15 DEG C) is greater than 100CM, and the asphalt 135 DEG C kinetic viscosity is less than 3 Pa.s. The light-duty modified asphalt has lighter chroma (14-17) according to the standard chroma card, and belongs to light yellow; the color is light and is easy to change; and thus, the light-duty modified asphalt can be easily mixed with most colorants, and has bright discharge color. The road asphalt specifications clearly point out that the 135 DEG C rotary viscosity of the modified asphalt should be less than 3 Pa.s; and the 135 DEG C viscosity of the light-duty modified asphalt provided by the invention is 2.58 Pa.s, so the light-duty modified asphalt is easy for construction due to the lower viscosity.

Description

technical field [0001] The invention relates to asphalt for roads, in particular to modified asphalt for non-motor vehicle roads. Background technique [0002] Colored asphalt is developing vigorously, and road colorization can be described as an innovation in road construction. Colored pavement can not only guide traffic and divide road functions, but also greatly enhance the style and quality of a city. While the road industry is developing well, whether colored asphalt can be applied to people's daily life has gradually become the focus of research. Foreign colored asphalt has been applied to squares, parks, and residential walkways. For example, cities such as Amsterdam and The Hague in the Netherlands have bicycle lanes of 1.0-1.5m on the sidewalk, and the bicycle lanes are paved with iron-red asphalt pavement, which not only guides cyclists, but also becomes a landscape of the city; Amsterdam, the Netherlands Cities such as The Hague and Rotterdam have 1.5-2.0m iron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L57/02C08L91/00C08L53/02C08L23/06C08K5/12
Inventor 伍朝晖代剑锋徐建晖陈诚
Owner 重庆市智翔铺道技术工程有限公司
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