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Anti-corrosion and anti-aging modified asphalt emulsion for offshore pavement and preparation method thereof

A modified asphalt, anti-corrosion technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of marine environment corrosion of asphalt pavement, easy corrosion damage of asphalt materials, loss of activity of light stabilizers, etc. Corrosion in marine environment, superior road performance, and the effect of improving anti-aging performance

Inactive Publication Date: 2016-11-16
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a lot of asphalt modification research and technical applications have been carried out at home and abroad, the current relevant measures have not fundamentally solved the problems of asphalt pavement prone to corrosion by marine environments and high-temperature rutting damage.
[0006] At present, the asphalt materials produced by the existing technology are easily corroded and damaged in the offshore environment, and are also prone to various aging diseases due to absorbing a large amount of solar energy under long-term sunlight exposure; even if some light stabilizers are added to the asphalt materials , but the photostabilizer loses its activity because it is easy to react with foreign substances without protection

Method used

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  • Anti-corrosion and anti-aging modified asphalt emulsion for offshore pavement and preparation method thereof
  • Anti-corrosion and anti-aging modified asphalt emulsion for offshore pavement and preparation method thereof
  • Anti-corrosion and anti-aging modified asphalt emulsion for offshore pavement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Preparation of cationic surfactant intercalated montmorillonite

[0047] (a) fixed raw material component m (hexadecyl dimethyl benzyl ammonium chloride): m (montmorillonite) = 1:15, that is, by weight, hexadecyl dimethyl benzyl chloride The ammonium chloride consumption is 1 part, and the montmorillonite consumption is 15 parts.

[0048] (b) Heat 15.7 parts of deionized water to 65° C., add 1 part of hexadecyldimethylbenzyl ammonium chloride, stir until completely dissolved, and obtain a solution with a solid content of 6% by weight.

[0049] (c) Then put 15 parts of montmorillonite into the solution obtained in step (b), stir until completely dispersed, keep warm for 60 minutes, and finally filter, wash and dry to obtain about 16 parts of cationic surfactant intercalation montmorillonite off stone.

[0050] (2) Preparation of modified asphalt emulsion

[0051] (a) Heating 65 parts of base asphalt to 145°C and showing a molten state.

[0052] (b) 0.5 part of ce...

Embodiment 2

[0056] (1) Preparation of cationic surfactant intercalated montmorillonite

[0057] (a) fix m (hexadecyl pyridinium chloride): m (montmorillonite) = 1:10, namely by weight, cetyl dimethyl benzyl ammonium chloride consumption is 1 part, montmorillonite The amount of de-stonening is 10 parts.

[0058] (b) Heat 24 parts of deionized water to 70° C., add 1 part of cetylpyridinium chloride, and stir until completely dissolved to obtain a solution with a solid content of 4% by weight.

[0059] (c) Then put 10 parts of montmorillonite into the solution obtained in step (b), stir until completely dispersed, keep warm for 90 minutes, and finally filter, wash and dry to obtain about 11 parts of cationic surfactant intercalation montmorillonite off stone.

[0060] (2) Preparation of modified asphalt emulsion

[0061] (a) Heating 80 parts of base asphalt to 150°C and showing a molten state.

[0062] (b) 1 part of cetyltrimethylammonium bromide is dropped into 35 parts of 80 DEG C of w...

Embodiment 3

[0066] (1) Preparation of cationic surfactant intercalated montmorillonite

[0067] (a) fixed raw material component m (hexadecyl dimethyl benzyl ammonium bromide): m (montmorillonite) = 1:20, that is, by weight, hexadecyl dimethyl benzyl chloride The ammonium chloride consumption is 1 part, and the montmorillonite consumption is 20 parts.

[0068] (b) Heat 49 parts of deionized water to 60° C., add 1 part of cetylpyridinium chloride, and stir until completely dissolved to obtain a solution with a solid content of 2% by weight.

[0069] (c) Then put 20 parts of montmorillonite into the solution obtained in step (b), stir until it is completely dispersed, keep it warm for 30 minutes, and finally filter, wash and dry to obtain about 21 parts of cationic surfactant intercalation Montmorillonite.

[0070](2) Preparation of modified asphalt emulsion

[0071] (a) Heating 60 parts of base asphalt to 140°C and showing a molten state.

[0072] (b) 0.1 part of octadecyltrimethylammo...

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Abstract

The invention discloses a corrosion-resistant aging-resistant modified asphalt emulsion for an offshore pavement and a preparation method thereof, aiming at the problem that asphalt material produced in prior art is likely to be corroded and get aged in an offshore environment. The corrosion-resistant aging-resistant modified asphalt emulsion comprises the following components in parts by weight: 60-75 parts of matrix asphalt, 20-35 parts of water, 0.1-3.5 parts of an emulsifier, 1-10 parts of cationic surface active agent intercalated montmorillonite and 0.5-5.5 parts of a light stabilizer. The corrosion-resistant aging-resistant modified asphalt emulsion is prepared through a special mechanical emulsification method. The corrosion-resistant aging-resistant modified asphalt emulsion product has excellent marine environment corrosion resistance and aging resistance and strong anti-rutting performance, is prepared by a simple process with low cost and is capable of replacing imported similar products available on the market.

Description

【Technical field】 [0001] The present invention relates to a method for preparing asphalt used in the field of offshore environmental road engineering and its products, in particular to a method for preparing modified asphalt emulsion with excellent performances such as seawater environmental corrosion resistance, aging resistance, cooling performance, and anti-rutting ability, and its preparation method. product. 【Background technique】 [0002] Asphalt pavement has become the mainstream pavement type of road construction at home and abroad due to its good road performance. Most of the offshore roads in seaports, docks, breakwaters, bridges, subsea tunnels, dam gates, culverts, aqueducts and other marine projects are Paved with asphalt concrete materials. According to relevant statistics, as of 2014, the proportion of asphalt pavement in the offshore roads of the United States, France and China has accounted for more than 85%. The magnitude continued to increase. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K13/06C08K9/04C08K3/34C08K3/04C08K3/22C08K3/26C08J3/03
Inventor 冷小冰武炜陈杨聂建华杨振宇陈增标易晨希
Owner ZHONGSHAN POLYTECHNIC