Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for testing concrete viscous effect evolution under erosion condition

A technology of concrete and determination method, which is applied to the analysis of solids by using sonic/ultrasonic/infrasonic waves, can solve the problem that the evolution of concrete viscous effect cannot be well characterized, and the determination method and calculation method of concrete material damage, and the measurement method of relaxation time are not proposed. Limited to problems such as one-dimensional states

Inactive Publication Date: 2015-02-25
SOUTHEAST UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 200910152927.6 discloses a method for measuring the relaxation time of viscoelastic materials, which relates to the test method for the relaxation time of concrete under erosive conditions. In addition, the method of measuring relaxation time is limited to one-dimensional state, which cannot well characterize the evolution of viscous effect of concrete under erosive conditions.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for testing concrete viscous effect evolution under erosion condition
  • Method for testing concrete viscous effect evolution under erosion condition
  • Method for testing concrete viscous effect evolution under erosion condition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0105] The present invention will be further described below in conjunction with the accompanying drawings.

[0106] Concrete cylindrical specimen (length 500mm, diameter 45mm) is used as the specimen to be tested, and its viscous effect evolution under erosion conditions is determined, including the following steps:

[0107] (1) Take out the non-metallic ultrasonic detector, and connect the transducer to the host firmly and stably;

[0108] (2) According to the size of the test piece, etc., set the parameters of the non-metallic ultrasonic detector. The parameter settings of the ultrasonic detector for this measurement are shown in Table 1 below.

[0109] Table 1 Parameters of non-metal ultrasonic detector

[0110]

[0111] (3) Mark a cylindrical concrete sample with a length of 500mm at intervals of 100mm along the length direction, and record it as 0, 1, 2, 3, 4 according to the increase of the distance from the starting end;

[0112] (4) Apply coupling agent evenly on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for testing concrete viscous effect evolution under an erosion condition. The method comprises concrete relaxation time evolution test and concrete damage evolution determination under an erosion condition. The method can be operated simply, provides a concrete relaxation time test method under an erosion condition, provides a concrete damage evolution determination method, can accurately test a concrete material viscous effect evolution rule under the erosion condition and does not damage a test piece to be detected.

Description

technical field [0001] The invention relates to a method for measuring the viscous effect evolution of concrete under erosion conditions, in particular to a method for measuring the relaxation time evolution and damage evolution of concrete materials. Background technique [0002] The viscous effect is one of the important characteristics reflecting the performance of concrete. The evolution of viscous effect can be characterized by the evolution of relaxation time and the evolution of concrete wave velocity and density. Relaxation time is an important parameter to characterize the constitutive model of concrete materials, and the evolution law of concrete relaxation time reflects the failure process of concrete under erosion conditions. Therefore, it is of great practical significance to study the evolution law of the viscous effect of concrete for predicting the failure degree of concrete under erosive conditions. [0003] Chinese patent 200910152927.6 discloses a method...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N29/11
Inventor 孙伟褚洪岩蒋金洋
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com