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Salt-storing deicing material special for asphalt pavement and preparation method thereof

A technology for asphalt pavement and salt storage, applied in the field of materials, can solve the problems of unsatisfactory deicing effect of snow-melting and deicing agent, shortening the service life of roads, and reducing road performance of pavement, so as to improve long-term deicing effect and good application effect. , the effect of delaying the freezing time

Active Publication Date: 2014-04-09
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing common deicing agent has a single snowmelting effect. Whether it is directly sprinkled on the road surface or stored in the asphalt mixture, it can only temporarily melt part of the ice and snow, and cannot cope with the large-scale road snow accumulation caused by complex and severe ice and snow weather conditions. Therefore, the deicing effect of traditional snow melting and deicing agents is not ideal, and the scope of application is also limited in many cases.
In addition, the traditional deicing salt corrodes the road surface, reduces the road performance of the road surface, and shortens the service life of the road
And it has a negative impact on the environment near the road, causing salinization of the land, and destroying the plants around the road, which has brought huge economic losses to our country

Method used

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  • Salt-storing deicing material special for asphalt pavement and preparation method thereof
  • Salt-storing deicing material special for asphalt pavement and preparation method thereof
  • Salt-storing deicing material special for asphalt pavement and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Take the production of 1000g of special deicing material for salt storage asphalt pavement as an example, the amount of each raw material is as follows (all components in the system are commercially available products):

[0035] Inorganic freezing point depression main agent: 400g;

[0036] Organic auxiliary freezing point depressant: 100g;

[0037] Freeze delay agent: 100g;

[0038] Ice softener: 100g;

[0039] Release stabilizer: 300g.

[0040] Anhydrous calcium chloride with a fineness of 20-200 mesh is selected as the main inorganic freezing point depressant.

[0041] The organic auxiliary freezing point depressant is composed of ethylene glycol and urea, and the mass ratio is ethylene glycol:urea=100:65; the freezing retarder is composed of sodium polyacrylate, maleic anhydride isobutylene polymer, and the mass ratio is Sodium polyacrylate: maleic anhydride isobutylene polymer=100:90; the ice layer softening agent is 1,6-hexanediol diacrylate; the release stabilizer is PO 42....

Embodiment 2

[0047] Take the production of 1000g of special deicing material for salt storage asphalt pavement as an example, the amount of each raw material is as follows (all components in the system are commercially available products):

[0048] Inorganic freezing point depression main agent: 400g;

[0049] Organic auxiliary freezing point depressant: 150g;

[0050] Freeze delay agent: 50g;

[0051] Ice softener: 50g;

[0052] Release stabilizer: 350g.

[0053] The inorganic freezing point depression main agent is calcium chloride with a fineness of 20-200 mesh.

[0054] The organic auxiliary freezing point depressant is composed of ethylene glycol; the freezing retarder is composed of sodium polyacrylate, maleic anhydride isobutylene polymer, and the mass ratio is sodium polyacrylate: maleic anhydride isobutylene polymer=100:120 The ice layer softening agent is 1,6-hexanediol diacrylate; the release stabilizer is PO 42.5 ordinary Portland cement and hydrated lime, and the mass ratio is ordinary P...

Embodiment 3

[0062] Take the production of 1000g of special deicing material for salt storage asphalt pavement as an example, the amount of each raw material is as follows (all components in the system are commercially available products):

[0063] Inorganic freezing point depression main agent: 300g;

[0064] Organic auxiliary freezing point depressant: 100g;

[0065] Freeze delay agent: 50g;

[0066] Ice softener: 50g;

[0067] Release stabilizer: 500g.

[0068] Anhydrous calcium chloride with a fineness of 20-200 mesh is selected as the main inorganic freezing point depressant.

[0069] The organic auxiliary freezing point depressant is composed of ethylene glycol and 1-2 propylene glycol, and the mass ratio is ethylene glycol: 1-2 propylene glycol=100:120; the freezing retarder is composed of sodium polyacrylate; the ice The layer softening agent is propylene glycol methyl ether acetate; the release stabilizer is PO 42.5 cement and slaked lime, and the mass ratio is cement: slaked lime=100:10.

[...

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Abstract

The invention relates to a salt-storing deicing material special for asphalt pavement and a preparation method thereof. A salt-storing deicing material special for asphalt pavement is characterized in that the deicing material comprises an inorganic freezing point lowering main agent, an inorganic auxiliary freezing point lowering agent, a freezing retardant, an ice layer softener and a releasing stabilizer, and the mass fractions of the components are that 20-40 parts of inorganic freezing point lowering main agents, 10-30 parts of inorganic auxiliary freezing point lowering agents, 5-25 parts of freezing retardants, 5-25 parts of ice layer softeners, and 30-60 parts of releasing stabilizers. The deicing material has obvious deicing effect.

Description

Technical field [0001] The invention belongs to the technical field of materials, and specifically relates to a deicing material for asphalt pavement and a preparation method thereof. Background technique [0002] Snow and icing on roads in winter has always been a major problem plagued by road traffic. Because the road is covered with snow and ice, the adhesion between the tire and the road surface is reduced, which is very easy to cause traffic accidents, and in severe cases, it can cause road traffic paralysis, and even cause significant loss of life and property. In order to solve such problems, many departments have carried out a lot of analysis and research work, and have explored a lot of valuable experience in deicing methods. Generally speaking, they can be roughly divided into physical methods and chemical methods. Physical methods include artificial snow removal methods and mechanical removal methods. , Or by spreading sand and stone materials to achieve the purpose o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18
Inventor 丁庆军姜友生胡曙光陈光新张厚记程久胜黄绍龙黄修林赵明宇彭馨彦
Owner WUHAN UNIV OF TECH
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