Title:
ON-SITE RAPID REGENERATION AND REPAIR METHOD FOR DAMAGE FOR SEMI-RIGID BASE OF ASPHALT PAVEMENT
Document Type and Number:
WIPO Patent Application WO/2022/252531
Kind Code:
A1
Abstract:
Disclosed in the present invention is an on-site rapid regeneration and repair method for damage for a semi-rigid base of asphalt pavement. The method comprises the following steps: 1) determining a treatment range, breaking a whole surface layer and a whole base layer, and crushing the surface layer and the whole base layer by means of a crushing device to produce backfill aggregates; 2) mixing the aggregates with emulsified asphalt; 3) spraying an interface adhesive to an excavation interface; 4) paving the mixed aggregates back to a damage part, leveling and rolling to form a large-gap emulsified asphalt mixture; 5) pouring geopolymer or quick-hardening cement slurry into gaps of a backfill material; and 6) after the curing time is reached, paving an asphalt surface layer and opening traffic. The repairing method is simple, rapid, small in traffic influence, energy-saving and environment-friendly. A semi-flexible composite material having the elastic modulus equivalent to that of an original pavement semi-rigid base layer is obtained by means of on-site recycling of an original pavement material, the semi-flexible composite material is bonded with the original pavement material by means of an interface chemical reaction, and the service life is prolonged.
Inventors:
CAO WEIWEI (CN)
SZE WAI PAN (CN)
LEI TAO (CN)
XU XIAOLONG (CN)
HU XIAOWEN (CN)
DUAN PENGPENG (CN)
ZHU WEI (CN)
SZE WAI PAN (CN)
LEI TAO (CN)
XU XIAOLONG (CN)
HU XIAOWEN (CN)
DUAN PENGPENG (CN)
ZHU WEI (CN)
Application Number:
PCT/CN2021/135554
Publication Date:
December 08, 2022
Filing Date:
December 03, 2021
Export Citation:
Assignee:
FREETECH ROAD RECYCLING CORP (CN)
International Classes:
E01C7/18
Foreign References:
| CN113250031A | 2021-08-13 | |||
| CN104762861A | 2015-07-08 | |||
| CN205329451U | 2016-06-22 | |||
| CN1125799A | 1996-07-03 | |||
| CN109797624A | 2019-05-24 | |||
| CN108409214A | 2018-08-17 | |||
| CN102677567A | 2012-09-19 | |||
| CN111636282A | 2020-09-08 | |||
| KR20070095661A | 2007-10-01 | |||
| AU2009101336A4 | 2010-02-25 |
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
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