公开(公告)号：US11821876B2

公开(公告)日：2023-11-21

申请号：US17907888

申请日：2022-03-09

Applicant: SOUTHEAST UNIVERSITY

Inventor： Zhiyong Liu ,  Xizhi Xia ,  Jinyang Jiang ,  Yunsheng Zhang

IPC: G01N3/10 ,  G01N33/38

CPC classification number: G01N3/10 ,  G01N33/383 ,  G01N2203/0019 ,  G01N2203/0048

Abstract: The present disclosure discloses a medium transmission test device and a method for concrete under a temperature-osmotic pressure-load coupling effect. The device includes a loading device and a water pressurization device; the loading device includes a press, an upper steel plate and a lower steel plate used for clamping a test block, and a fastener that connects the upper and lower steel plates; the upper steel plate includes a first steel plate and a second steel plate; a spring is sleeved on a screw between the first steel plate and the second steel plate; the water pressurization device includes a liquid storage tank, a pressurization pump, a liquid storage pool, a connecting pipe for communicating the pressurization pump to the liquid storage tank, and a connecting pipe for connecting the pressurization pump to the liquid storage pool; the liquid storage tank is provided with an open end; and a tank port of the open end is fixedly connected to a side surface of the test block. The present disclosure achieves a load-temperature-osmotic pressure coupling effect on concrete, can well simulate a complicated severe environment where underground concrete is located, and provides an effective device support for the study of the durability of concrete under complicated severe conditions.

公开(公告)号：US12140586B1

公开(公告)日：2024-11-12

申请号：US18444886

申请日：2024-02-19

Applicant: Southeast University

Inventor： Fengjuan Wang ,  Yuncheng Wang ,  Jinyang Jiang ,  Song Mu ,  Zhiyong Liu ,  Yingze Li

IPC: G01N33/38

Abstract: A calculation method for service life of concrete in a plateau environment considering protection and restoration effects is provided and includes a construction of a model based on a coupling effect of multi-factors of temperature-humidity-salt concentration-load under the plateau environment, simulation of protection and restoration effects, and quantification of service life. The model includes the physical fields of temperature conduction with variable boundary conditions, water dry-wet cycle transport, salt ion transport, and force fields caused by internal and external loads. The simulation of protection and restoration effects include: surface protective coating, damage restoration, and rebar corrosion resistance. The calculation method can simulate the internal temperature, humidity, stress response, and service life of concrete under different plateau environments using the surface protective coating, damage restoration material, and rebar corrosion resistance material, or a combination of protective and damage restoration materials simultaneously.

公开(公告)号：US20240393315A1

公开(公告)日：2024-11-28

申请号：US18444886

申请日：2024-02-19

Applicant: Southeast University

Inventor： Fengjuan Wang ,  Yuncheng Wang ,  Jinyang Jiang ,  Song Mu ,  Zhiyong Liu ,  Yingze Li

IPC: G01N33/38

Abstract: A calculation method for service life of concrete in a plateau environment considering protection and restoration effects is provided and includes a construction of a model based on a coupling effect of multi-factors of temperature-humidity-salt concentration-load under the plateau environment, simulation of protection and restoration effects, and quantification of service life. The model includes the physical fields of temperature conduction with variable boundary conditions, water dry-wet cycle transport, salt ion transport, and force fields caused by internal and external loads. The simulation of protection and restoration effects include: surface protective coating, damage restoration, and rebar corrosion resistance. The calculation method can simulate the internal temperature, humidity, stress response, and service life of concrete under different plateau environments using the surface protective coating, damage restoration material, and rebar corrosion resistance material, or a combination of protective and damage restoration materials simultaneously.