Sulfur-modified emulsified asphalt and preparation method thereof

A technology of emulsified asphalt and sulfur, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems that the temperature of the mixture should not be too high, the storage time should not be too long, and the human body will be injured, so as to improve the rutting and avoid heating and harmful gas, energy saving effect

Inactive Publication Date: 2017-04-05
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Sulfur-modified emulsified asphalt and preparation method thereof

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Embodiment 1

[0027] The sulfur-modified emulsified asphalt of the present invention is composed of the following raw materials in parts by mass: 40 parts of 70# heavy traffic asphalt, 20 parts of 800 mesh sulfur powder, 10 parts of styrene-butadiene latex with a solid content of 40%, and 1 part of nonionic emulsifier op-10 , 0.5 parts of cationic composite emulsifier (0.3 part of trimethylamine lignin, 0.2 part of cationic emulsifier cetyltrimethylammonium chloride), 0.03 part of polyacrylamide, 0.5 part of hydrochloric acid, 50 parts of water.

[0028] The preparation method of sulfur modified emulsified asphalt of the present invention is:

[0029] Add 1 part of nonionic emulsifier to 45 parts of hot water at 55°C to dissolve, add 20 parts of sulfur powder to the aqueous solution of nonionic emulsifier, and prepare a sulfur powder suspension under the action of strong stirring by an emulsifier, and then weigh Take 0.5 part of cationic composite emulsifier (0.3 part of trimethylamine lign...

Embodiment 2

[0031] The sulfur-modified emulsified asphalt of the present invention is composed of the following raw materials in parts by mass: 45 parts of 70# heavy traffic asphalt, 12.5 parts of 600 mesh sulfur powder, 5 parts of styrene-butadiene latex with a solid content of 40%, and 0.7 parts of nonionic emulsifier op-10 , 1 part of cationic composite emulsifier (0.5 part of N-aminoethylamide, 0.5 part of cationic emulsifier cetyltrimethylammonium chloride), 0.05 part of polyacrylamide, 1 part of hydrochloric acid, 40 parts of water.

Embodiment 3

[0033] The sulfur-modified emulsified asphalt of the present invention is composed of the following raw materials in parts by mass: 50 parts of 70# heavy traffic asphalt, 5 parts of 500 mesh sulfur powder, 2 parts of styrene-butadiene latex with a solid content of 40%, and 0.3 parts of nonionic emulsifier op-10 , 3 parts of cationic compound emulsifier (22 parts of 1-aminoethyl-2-heptadecyl imidazoline, 1 part of cationic emulsifier hexadecyltrimethylammonium chloride), 0.1 part of polyacrylamide, hydrochloric acid 3 parts, 35 parts of water.

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Abstract

The invention relates to sulfur-modified emulsified asphalt and a preparation method thereof. The sulfur-modified emulsified asphalt is prepared from 40 to 50 parts by mass of asphalt, 5 to 20 parts by mass of sulfur, 2 to 10 parts by mass of styrene-butadiene latex, 0.3 to 1 part by mass of a nonionic emulsifier, 0.5 to 3 parts by mass of a cationic composite emulsifier, 0.03 to 2 parts by mass of a stabilizer, 0.5 to 3 parts by mass of an acid and 35 to 50 parts by mass of water. The sulfur-modified emulsified asphalt improves a softening point of the asphalt, improves the high temperature performances of the asphalt, has good low temperature performances, can improve the strength and stability of the asphalt pavement, and improves rutting and fatigue cracking resistance of the pavement. The sulfur-modified emulsified asphalt is prepared through simple processes, is free of heating, prevents generation of harmful gas, reduces the energy consumption and discharge, is beneficial to construction and the health of the construction personnel, and has great economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of modified emulsified asphalt, and in particular relates to a sulfur-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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L9/08C08K3/06
Inventor 高淑美马鹏程贾丽凤许金山刘爱华王建华王秀丽毛冬梅
Owner CHINA PETROLEUM & CHEM CORP
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