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Antifreeze asphalt mixture and preparation method thereof

A technology for asphalt mixture and anti-condensation ice, applied in the field of anti-condensation ice asphalt mixture and its preparation, can solve the problems of reduced road friction, traffic accidents, thin ice formation on the road surface, etc., so as to reduce the freezing point of the road surface and prevent the road surface from freezing. , Enhance the effect of road friction

Inactive Publication Date: 2017-12-29
谢新昇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an anti-icing asphalt mixture and its preparation method in view of the problem that asphalt roads tend to form thin ice due to frost in winter, causing the road surface friction to drop sharply and easily causing traffic accidents.

Method used

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  • Antifreeze asphalt mixture and preparation method thereof

Examples

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Comparison scheme
Effect test

example 1

[0025] Take 100g of calcium carbide slag and 20g of magnesium oxide, add them into 300mL of deionized water, stir at 300r / min at 50°C for 20min, then add 120g of glacial acetic acid, continue stirring for 1h, cool to room temperature and filter to obtain the filtrate, take 30g of diatomaceous earth Pulverize in a pulverizer, pass through a 40-mesh sieve, add the sieved diatomite powder to the filtrate, stir at 200r / min for 20min, then add 10g of methyltriethoxysilane, and disperse with 300W ultrasonic wave for 20min before loading Put it into a rotary evaporator, evaporate to dryness at 120 ° C, then transfer it to a mortar for grinding, and pass through a 80-mesh sieve to obtain an anti-icing agent. Take limestone and put it into a jaw crusher for primary crushing, and then transfer it to a disc type Secondary crushing in the crusher, and transferred to the vibrating screen machine, the limestone crushed stones with different particle sizes were screened out, and the crushed s...

example 2

[0027] Take 150g of carbide slag and 30g of magnesium oxide, add it to 400mL of deionized water, stir at 55°C at 350r / min for 25min, then add 180g of glacial acetic acid, continue stirring for 1h, cool to room temperature and filter to obtain the filtrate, take 40g of diatomaceous earth Pulverize in a pulverizer, pass through a 40-mesh sieve, add the sieved diatomite powder to the filtrate, stir at 250r / min for 25min, then add 15g of methyltriethoxysilane, and disperse with 300W ultrasonic wave for 25min before loading Put it into a rotary evaporator, evaporate to dryness at 125°C, then transfer it to a mortar for grinding, and pass through a 80-mesh sieve to obtain an anti-icing agent. Take limestone and put it into a jaw crusher for primary crushing, and then transfer it to a disc type Secondary crushing in the crusher, and transferred to the vibrating screen machine, the limestone crushed stones with different particle sizes were screened out, and the crushed stones were loa...

example 3

[0029] Take 200g of calcium carbide slag, 40g of magnesium oxide, add 500mL of deionized water, stir at 60°C at 400r / min for 30min, then add 240g of glacial acetic acid, continue stirring for 2h, cool to room temperature and filter to obtain the filtrate, take 50g of diatomaceous earth Pulverize in a pulverizer, pass through a 40-mesh sieve, add the sieved diatomite powder into the filtrate, stir at 300r / min for 30min, then add 20g of methyltriethoxysilane, and disperse with 300W ultrasonic wave for 30min before loading Put it into a rotary evaporator, evaporate to dryness at 130°C, then transfer it to a mortar for grinding, and pass through a 80-mesh sieve to obtain an anti-icing agent. Take limestone and put it into a jaw crusher for primary crushing, and then transfer it to a disc type Secondary crushing in the crusher, and transfer to the vibrating screen machine, respectively screen out limestone gravels with different particle sizes, put the crushed stones into the mixer,...

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Abstract

The invention relates to an antifreeze asphalt mixture and a preparation method thereof and belongs to the technical field of road construction. A calcium acetate melting agent is prepared by the aid of acetylene residues to be loaded on the surface of kieselguhr prior to being subjected to low surface hydrophobic treatment to obtain an antifreezing agent, pavement freezing point can be effectively lowered, icy pavement is prevented, long-term pavement antifreezing effect is achieved, maintenance cost of winter pavement management is lowered, releasing of the calcium acetate melting agent can be effectively alleviated through the kieselguhr, and the antifreezing agent can be evenly released within the range of pavement service life. Basic asphalt aggregate sandstone is prepared as required, rubber particles are tightly embedded between the mixture and the rubber particles as well as the stone material, pavement friction is enhanced, the mixture which is compressed is stable in structure, the rubber particles bear higher pressure, the antifreeze material cannot be destroyed during mixing of the asphalt mixture and paving of the asphalt pavement, and long-term antifreezing performance is achieved.

Description

technical field [0001] The invention relates to an anti-icing asphalt mixture and a preparation method thereof, belonging to the technical field of road construction. Background technique [0002] Bitumen refers to a black to dark brown solid or semi-solid viscous substance containing a mixture of certain minerals. The asphalt used by humans mainly includes natural asphalt and petroleum asphalt obtained from crude oil refining. Their main components are the same, specifically a variety of hydrocarbons and hydrocarbon derivatives soluble in carbon disulfide. Bitumen is generally a dark brown or black semi-solid substance. Asphalt materials can be liquid, semi-solid or solid at room temperature, and have mechanical properties of highly non-Newtonian liquid, composite visco-plastic or visco-elastic. Asphalt materials are impermeable, non-conductive, resistant to acid, alkali, and salt corrosion, and also have good adhesion to ore and other materials. Road traffic is like the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/20C04B111/76
Inventor 谢新昇王之霖史玉兰
Owner 谢新昇
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