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Title:
SPECIAL GRADING MODIFIED ASPHALT MIXTURE SURFACE LAYER AND PAVING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/193629
Kind Code:
A1
Abstract:
Disclosed are a special grading modified asphalt mixture surface layer and a paving method therefor. The surface layer is formed by thinly spreading a high-viscosity asphalt mixture made of high-viscosity modified asphalt, an aggregate material, a filler and a fibre stabilizer in a mixed mode; the mixing amount of the high-viscosity modified asphalt is 5.2% - 6.4% of the mass of the surface layer; the aggregate material comprises a coarse aggregate material and a fine aggregate material; the fibre stabilizer is polyester fibres, the average length is 5 mm - 6 mm, and the mixing amount is 0.2% - 0.4% of the mass of the surface layer; and the filler is a finely ground limestone powder. The strength and the toughness of the special grading modified asphalt mixture surface layer are more significantly improved, such that the occurrence and extension of reflection cracks can be effectively inhibited, and the service life of a pavement structure is improved.

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Inventors:
GUO YABING (CN)
HE ZHILONG (CN)
LU FENGYUN (CN)
ZHOU XU (CN)
SHI SHUDONG (CN)
LUO FANGYAN (CN)
XU YAN (CN)
MA LIZHI (CN)
QIU YI (CN)
DENG GUOMIN (CN)
XIA QINGYU (CN)
YAO KAI (CN)
YUAN YUE (CN)
HUANG AN (CN)
ZHOU WEIWEI (CN)
Application Number:
CN2017/071316
Publication Date:
November 16, 2017
Filing Date:
January 16, 2017
Export Citation:
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Assignee:
SHANGHAI PUDONG LUQIAO CONSTRUCTION CO LTD (CN)
SHANGHAI PUDONG LUQIAO ASPHALT MAT CO LTD (CN)
International Classes:
E01C7/26
Foreign References:
CN104018410A2014-09-03
CN103015316A2013-04-03
CN105926399A2016-09-07
CN105926405A2016-09-07
CN105926401A2016-09-07
CN105803885A2016-07-27
CN102644225A2012-08-22
CN101671991A2010-03-17
CN101172810A2008-05-07
CN102733284A2012-10-17
JP2003253608A2003-09-10
Attorney, Agent or Firm:
BEIJING YINGKE LAW FIRM (CN)
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