Title:
DEVICE FOR SIMULATING CALCIUM ION DISSOLUTION AND CHLORIDE ION DIFFUSION CONDITIONS OF CEMENT-BASED MATERIAL IN UNDERWATER AREA
Document Type and Number:
WIPO Patent Application WO/2024/012393
Kind Code:
A1
Abstract:
A device for simulating calcium ion dissolution and chloride ion diffusion conditions of a cement-based material in an underwater area, said device comprising a test bin and an air compressor for providing pressure for the test bin; the test bin comprises a pressure-resistant bin and a solution storage bin, and a booster pump and a pressure sensor are arranged on a connecting air pipe of the air compressor and the pressure-resistant bin; a sensor assembly is disposed in the pressure-resistant bin, and the sensor assembly is fixed to the pressure-resistant bin by means of a fixing device; the sensor assembly comprises a calcium ion sensor, a chloride ion sensor and a reference electrode; and a pressure relief valve is disposed on a connecting pipe of the pressure-resistant bin and the solution storage bin. In the device, pressure is applied to a corrosive solution to simulate the head pressure acting on a cement-based material in an underwater area of a dam or deep-sea engineering. Under the action of water pressure, the cement-based material experiences calcium ion dissolution and chloride ion erosion at the same time, so that the calcium ion dissolution rate and the chloride ion diffusion rate of the cement-based material under the action of corresponding water pressure are rapidly obtained. The corrosion resistance and chloride ion erosion resistance of the cement-based material under the action of different water pressures may be evaluated, and the service life of a concrete building under the conditions of water pressure load and during calcium ion dissolution and chloride ion erosion degradation may be predicted.
Inventors:
JIN MING (CN)
LI WENWEI (CN)
LIU JIAPING (CN)
ZENG HAOYU (CN)
LU CHAO (CN)
SHI YAN (CN)
ZHANG JIAN (CN)
YANG GUO (CN)
LI WENWEI (CN)
LIU JIAPING (CN)
ZENG HAOYU (CN)
LU CHAO (CN)
SHI YAN (CN)
ZHANG JIAN (CN)
YANG GUO (CN)
Application Number:
PCT/CN2023/106510
Publication Date:
January 18, 2024
Filing Date:
July 10, 2023
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
CHINA THREE GORGES CORP (CN)
CHANGJIANG RIVER SCIENT RESEARCH INSTITUTE (CN)
CHINA THREE GORGES CORP (CN)
CHANGJIANG RIVER SCIENT RESEARCH INSTITUTE (CN)
International Classes:
G01N17/02
Foreign References:
| CN115201100A | 2022-10-18 | |||
| KR20110138823A | 2011-12-28 | |||
| CN211122457U | 2020-07-28 | |||
| CN114578030A | 2022-06-03 | |||
| CN107941688A | 2018-04-20 | |||
| KR101962368B1 | 2019-07-17 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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