Title:
CONSTRUCTION METHOD FOR UPPER SURFACE COURSE MADE OF STEEL SLAG-ASPHALT MIXTURE
Document Type and Number:
WIPO Patent Application WO/2023/020630
Kind Code:
A1
Abstract:
Provided in the present invention is a construction method for an upper surface course made of a steel slag-asphalt mixture. The construction method comprises the following steps: preparation of construction materials, acceptance of a middle surface course, construction of a binding course, mixing of a steel-asphalt mixture, transportation of a steel slag-asphalt mixture, paving of the steel slag-asphalt mixture, rolling of the steel slag-asphalt mixture, arrangement and treatment of construction joints, and inspection and acceptance, wherein the rolling of the steel slag-asphalt mixture comprises preliminary rolling, re-rolling and final rolling, the rolling speeds of preliminary rolling and re-rolling are 4-5 km/h, and the rolling speed of final rolling is 2-3 km/h. The construction method of the present invention has the characteristics of a simple construction process and high construction efficiency; moreover, the binding power and shear strength of the steel slag-asphalt mixture used in the upper surface course and the aging resistance, wear resistance, etc. of an asphalt pavement are improved to a certain extent compared with those of a common gravel mixture, such that the service level of a road can be effectively improved.
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Inventors:
WANG SHIGEN (CN)
GUO HONGKUN (CN)
LI YONG (CN)
PENG TIANJUN (CN)
WANG ZHIYONG (CN)
WANG BEN (CN)
ZHANG ZHAO (CN)
ZHANG CHENG (CN)
GUO HONGKUN (CN)
LI YONG (CN)
PENG TIANJUN (CN)
WANG ZHIYONG (CN)
WANG BEN (CN)
ZHANG ZHAO (CN)
ZHANG CHENG (CN)
Application Number:
PCT/CN2022/122073
Publication Date:
February 23, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
THE FIRST ENG CO LTD OF CTCE GROUP (CN)
CHINA RAILWAY NO 4 GROUP CO LTD (CN)
CHINA RAILWAY NO 4 GROUP CO LTD (CN)
International Classes:
E01C7/18
Domestic Patent References:
WO2018128208A1 | 2018-07-12 | |||
WO2012098406A2 | 2012-07-26 |
Foreign References:
CN114775357A | 2022-07-22 | |||
CN110258236A | 2019-09-20 | |||
CN113931032A | 2022-01-14 | |||
CN113529528A | 2021-10-22 | |||
CN112195710A | 2021-01-08 | |||
CN108911590A | 2018-11-30 | |||
US20030211313A1 | 2003-11-13 |
Attorney, Agent or Firm:
BEIJING HECHUANG ZHIXIN PATENT AGENCY CO., LTD (CN)
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