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Patent Searching and Data


Title:
HIGH-STRENGTH EMULSIFIED ASPHALT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/115090
Kind Code:
A1
Abstract:
A high-strength emulsified asphalt and a preparation method therefor, relating to the technical field of road materials. The high-strength emulsified asphalt comprises the following components in parts by weight: 450-600 parts of asphalt, 1-7 parts of a macromolecular elastomer material, 1-5 parts of a modified asphalt stabilizer, 1-10 parts of rubber oil, 1-5 parts of synthetic wax, 1-5 parts of a viscosity reducer, 1-10 parts of a polymer resin, 1-10 parts of an emulsifier, 300-500 parts of water, and 0.1-2 parts of an emulsified asphalt stabilizer. The asphalt is directly modified by utilizing the polymer resin in the presence of the viscosity reducer and the synthetic wax, and then is emulsified. The asphalt is directly modified by using the polymer resin and then is emulsified, so that the softening point of evaporation residues of the prepared high-strength emulsified asphalt is greater than 80°C, the elastic recovery is greater than 60, the viscosity at 60°C is greater than 8000 Pa·S under the condition that no modified latex is added, and the storage stability and the construction workability are better than those of the emulsified asphalt modified by adding the latex.

Inventors:
CHEN LIFENG (CN)
ZANG DONGDONG (CN)
CHEN XIANG (CN)
PAN YOUQIANG (CN)
Application Number:
PCT/CN2020/130216
Publication Date:
June 17, 2021
Filing Date:
November 19, 2020
Export Citation:
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Assignee:
JIANGSU SINOROAD TRAFFIC SCIENCE AND TECH CO LTD (CN)
International Classes:
C08L95/00; C08L9/06; C08L23/06; C08L23/08; C08L23/12; C08L33/04; C08L53/02; C08L57/02; C08L63/00
Foreign References:
CN110804318A2020-02-18
CN106084816A2016-11-09
CN104774479A2015-07-15
CN107641328A2018-01-30
CN107163597A2017-09-15
CN102093730A2011-06-15
CN105542494A2016-05-04
CN105482477A2016-04-13
Attorney, Agent or Firm:
BEIJING LAWSING IP FIRM (CN)
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