Modified emulsified asphalt and preparation method thereof

A technology for emulsified asphalt and modification, applied in building components, building insulation materials, buildings, etc., can solve the problems that the temperature of the mixture cannot be too high, the storage time cannot be too long, and the human body is injured, so as to improve the softening point and avoid Physical injury, effect of improving high temperature performance

Active Publication Date: 2018-07-31
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned sulfur-modified asphalt preparation method and application method belong to warm mix asphalt mixture, which is realized by heating the mixture at high temperature in the mixing pot, but the temperature of the mixture should not be too high, and the storage time should not be too long, otherwise the sulfur will Sulfur vapor, H 2 S, SO 2 Harmful gases and smog with pungent smell, not only pollute the environment, but also cause harm to human body

Method used

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  • Modified emulsified asphalt and preparation method thereof
  • Modified emulsified asphalt and preparation method thereof

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Embodiment 1

[0028] The modified emulsified asphalt of the present invention consists of the following raw materials in parts by mass:

[0029] 55 parts of 110# heavy traffic asphalt, 6 parts of liquid sulfur, 2 parts of styrene-butadiene latex, 1 part of alkylpropylenediamine, 1 part of octadecyltrimethylammonium chloride, 0.1 part of polyacrylamide, 1.0 part of potassium chloride Parts, 0.5 parts of hydrochloric acid, 40 parts of water.

[0030] The preparation method of modified emulsified asphalt of the present invention is:

[0031] (1) Add 6 parts of liquid sulfur and 55 parts of asphalt into the reaction kettle, react at 180°C for 1.5h, and cool down to 150°C.

[0032] (2) Weigh 1 part of cationic emulsifier alkylpropylenediamine, add 1 part of octadecyltrimethylammonium chloride into 40 parts of water, then add 0.1 part of polyacrylamide and 1.0 part of potassium chloride, and stir While adding 0.5 parts of acid, adjust the pH value to 3-5, prepare an emulsifier aqueous solution ...

Embodiment 2

[0035] The modified emulsified asphalt of the present invention is composed of the following raw materials in parts by mass: 50 parts of 110# heavy traffic asphalt, 6 parts of liquid sulfur, 2 parts of styrene-butadiene latex, 1 part of alkylpropylenediamine, octadecyl trimethyl chloride 1 part of ammonium, 0.1 part of polyacrylamide, 1.5 parts of potassium chloride, 0.5 part of hydrochloric acid, 40 parts of water.

Embodiment 3

[0037] The modified emulsified asphalt of the present invention is composed of the following raw materials in parts by mass: 50 parts of 90# heavy traffic asphalt, 11 parts of liquid sulfur, 6 parts of styrene-butadiene latex, 1 part of alkylpropylene triamine, octadecyl trimethyl chloride 2 parts of ammonium, 0.3 parts of polyacrylamide, 1.5 parts of potassium chloride, 1 part of hydrochloric acid, 40 parts of water.

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Abstract

The invention relates to modified emulsified asphalt and a preparation method thereof. The modified emulsified asphalt comprises, by mass, 40-50 parts of asphalt, 6-16 parts of sulfur, 2-10 parts of styrene-butadiene latex, 2-5 parts of a cationic emulsifier, 0.1-2 parts of a stabilizer, 0.5-3 parts of an acid and 35-40 parts of water. The modified emulsified asphalt improves high temperature andlow temperature performances of the asphalt, saves the asphalt, reduces a production cost, improves the high temperature stability of the asphalt pavement, prevents the rutting and peeling of the asphalt pavement under a load and improves the anti-fatigue cracking performances of the pavement.

Description

technical field [0001] The invention belongs to the field of modified emulsified asphalt for roads, and in particular relates to a modified emulsified asphalt and a preparation method thereof. Background technique [0002] At present, the method of using sulfur to modify asphalt is to process sulfur and other additives into a sulfur modifier through a special process. When the asphalt mixture is mixed, the sulfur modifier replaces part of the asphalt and directly adds it to the mixing pot. , Sulfur is melted in hot asphalt mixture to prepare sulfur modified asphalt mixture. The existing sulfur modifier is mainly Shell's SEAM, that is, sulfur-enhanced asphalt modifier. The main component is sulfur, and it also contains a small amount of smoke inhibitor and plasticizer. The disadvantage of this application method is that the temperature of the mixture should not exceed 150°C, and the time for the mixture to be transported from mixing to the construction site should be control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L9/08C08L33/26C08K13/02C08K3/06C08K5/17C08K5/19
CPCC08L95/00C08L2201/08C08L2205/03C08L2555/54C08L9/08C08L33/26C08K13/02C08K3/06C08K5/17C08K5/19
Inventor 许金山高淑美马鹏程贾丽凤刘爱华王秀丽毛冬梅
Owner CHINA PETROLEUM & CHEM CORP
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