Title:
METHOD FOR MEASURING CORROSION EXPANSION FORCE CAUSING CONCRETE CRACKING DURING CORROSION EXPANSION OF REBAR
Document Type and Number:
WIPO Patent Application WO/2020/177402
Kind Code:
A1
Abstract:
Disclosed is a method for measuring a corrosion expansion force causing concrete cracking during corrosion expansion of a rebar. The method comprises: photographing deformation of a reinforced concrete surface based on a digital image correlation method; analyzing and calculating whole-field displacement and strain of the concrete surface; by means of an established theoretical model, discovering a relationship between a corrosion expansion force and the strain of the concrete surface; and calculating the corrosion expansion force of a rebar, and analyzing a change rule thereof. The method for measuring a corrosion expansion force causing concrete cracking during corrosion expansion of a rebar is simple, is safe and reliable in operation, and has a scientific principle and low costs, and changes in a corrosion expansion force during corrosion expansion of reinforced concrete can be monitored in real time.
Inventors:
CHEN FANXIU (CN)
ZHANG BIN (CN)
GUO PENGFEI (CN)
JIN ZUQUAN (CN)
ZHANG BIN (CN)
GUO PENGFEI (CN)
JIN ZUQUAN (CN)
Application Number:
PCT/CN2019/120501
Publication Date:
September 10, 2020
Filing Date:
November 25, 2019
Export Citation:
Assignee:
QINGDAO UNIV OF TECHNOLOGICAL (CN)
International Classes:
G01L5/00; G01N33/38
Foreign References:
| CN108332891A | 2018-07-27 | |||
| CN109669028A | 2019-04-23 | |||
| CN104330023A | 2015-02-04 | |||
| CN106770360A | 2017-05-31 | |||
| CN108489413A | 2018-09-04 | |||
| JP2008268123A | 2008-11-06 |
Other References:
GAO HONGLI ，LIU HUAN，QI ZICHENG ，ZHENG HUANBIN: "Measurement of Displacement and Strain Fields of Fatigue Crack Tip under Resonant Loading Based on DIC Method", ORDNANCE MATERIAL SCIENCE AND ENGINEERING, vol. 39, no. 1, 31 January 2016 (2016-01-31), pages 16 - 22, XP055731842, ISSN: 1004-244x, DOI: 10.14024/j.cnki.1004-244x.20160104.003
Attorney, Agent or Firm:
QINGDAO GAOXIAO PATENT OFFICE (GENERAL PARTNERSHIP) (CN)
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