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OMMT modified anticondensation ice emulsified asphalt and preparation method thereof

A technology for emulsified asphalt and anti-condensation ice, which is used in building components, building insulation materials, buildings, etc. to achieve the effect of convenient removal, delaying the formation of ice, and cost-free pollution.

Inactive Publication Date: 2019-07-05
青海省交通规划设计研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of anti-icing emulsified asphalt and its preparation method, to overcome the deficiencies existing when the existing emulsified asphalt is used in deicing technology

Method used

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  • OMMT modified anticondensation ice emulsified asphalt and preparation method thereof
  • OMMT modified anticondensation ice emulsified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1, according to the number of parts by mass, disperse 5 parts of Na-MMT raw soil after drying treatment (drying temperature is 100°C, time is 2h) into 80 parts of deionized water, and stir at 300r / min for 2h, And heated in a water bath at 70°C for 10h;

[0025] Add 2 parts of DTAC (dodecyltrimethylammonium chloride) to the heated montmorillonite dispersion stock solution, stir at 250r / min for 4 hours and then let it stand; wait for it to cool to room temperature, and remove the upper part after centrifugation. The supernatant was obtained as a precipitate; the surface of the solid precipitate was washed with deionized water until no white precipitate was detected in the supernatant with 0.1mol of AgNO3 solution; dried at 100°C for 4 hours, and then ground through a 200-mesh sieve to obtain an OMMT modifier for use .

[0026] Take 9 parts of emulsifier compounded by LDS and OP-10 at a mass ratio of 2:1, and 30 parts of the above-mentioned OMMT modifier, and add ...

Embodiment 2

[0028] Example 2: According to the number of parts by mass, disperse 6 parts of Na-MMT raw soil after drying treatment (drying temperature is 105°C, time is 2.5h) into 90 parts of deionized water, and stir at 340r / min for 1.5 h, and heated in a water bath at 75°C for 9h. Add 2 parts of CTAB (cetyltrimethylammonium bromide) to the heated montmorillonite dispersion stock solution, stir at 300r / min for 3.5h and then let it stand; wait for it to cool to room temperature, and remove it after centrifugation The supernatant was obtained as a precipitate; the surface of the solid precipitate was washed with deionized water until no white precipitate was detected in the clear liquid with 0.1 mol of AgNO3 solution; dried at 110°C for 3.5 hours, and then ground through a 200-mesh sieve to obtain a modified OMMT Dosage spare.

[0029] Take 10 parts of emulsifier compounded by LAS and OP-10 in a mass ratio of 2:1, and 40 parts of the above-mentioned OMMT modifier, and add them to 500 part...

Embodiment 3

[0031] Example 3: According to the number of parts by mass, disperse 7 parts of Na-MMT raw soil after drying treatment (drying temperature is 110°C, time is 3h) into 100 parts of deionized water, and stir at 380r / min for 2h, And heated in a water bath at 80°C for 10h. Add 2 parts of 1831 (octadecyltrimethylammonium chloride) to the heated montmorillonite dispersion stock solution, stir at 400r / min for 3 hours and then let it stand still; wait for it to cool to room temperature, remove the upper part after centrifugation The supernatant was obtained as a precipitate; the surface of the solid precipitate was washed with deionized water until the supernatant was checked with 0.1 mol of AgNO3 solution for no white precipitate; dried at 120°C for 3 hours, and then ground through a 200-mesh sieve to obtain an OMMT modifier for use .

[0032] Take 12 parts of emulsifier compounded by LAS and OP-10 in a mass ratio of 2:1, and 50 parts of the above-mentioned OMMT modifier, and add the...

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Abstract

The invention relates to OMMT modified anticondensation ice emulsified asphalt and a preparation method thereof, and relates to the technical field of preparation of road maintenance materials. The method comprises the following steps: performing organification treatment on Na-MMT to obtain organic montmorillonite, preparing a mixed soap liquid by using OMMT and an emulsifying agent as raw materials, and adding the mixed soap liquid into matrix asphalt to prepare the modified emulsified asphalt having excellent anticondensation ice performance. The method provided by the invention has the beneficial effects that the mixed soap liquid prepared from the organic montmorillonite and the emulsifying agent is used as a modifying agent of the asphalt, the contact angle of the obtained emulsifiedasphalt is greatly improved relative to the matrix asphalt and ordinary emulsified asphalt, so that bonding strength between frozen water and a road layer is reduced, and the anticondensation ice performance of the emulsified asphalt is improved; the storage stability of the emulsified asphalt is improved, and the anti-aging property is improved; fog seal layer treatment is performed on a road surface by the emulsified asphalt, and the method has the advantages of high efficiency, no consumption, simple construction, relatively-low costs and no pollution.

Description

technical field [0001] The invention relates to the technical field of preparation of road maintenance materials, in particular to an OMMT modified anti-icing emulsified asphalt and a preparation method thereof. Background technique [0002] In recent years, ice and snow disasters caused by climate anomalies have gradually increased, and the resulting road traffic safety issues have attracted people's attention. Researchers from all over the world have done a lot of research to solve the problem that roads are icy and snow is difficult to remove in time, and they have proposed many technologies and methods to inhibit the accumulation of ice and snow or even eliminate it. However, there are more or less problems in these methods at present, so looking for an environmentally friendly and effective pavement anti-icing technology has become a research hotspot. [0003] Fog seal is a new type of maintenance technology based on emulsified asphalt. After the emulsified asphalt sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L71/02C08K9/04C08K3/34C08K5/42C08J3/03
CPCC08J3/03C08J2395/00C08J2471/02C08K3/346C08K5/42C08K9/04
Inventor 刘宁叶舟蔺亚敏钟海燕王欢欢王雪婷
Owner 青海省交通规划设计研究院有限公司
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