基于TDR的混凝土抗冻性无损检测评估方法
By applying double-sided conductive tape to the concrete surface and using TDR technology to measure the relative apparent dielectric constant, the problem of detecting the freezing amount and freezing expansion force of large-volume concrete specimens has been solved, achieving non-destructive evaluation, reducing testing costs and improving efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN UNIV
- Filing Date
- 2025-12-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently and cost-effectively detecting the amount of ice and freezing expansion force in large-volume concrete specimens. Traditional equipment is expensive and complex to operate, and traditional probe-type TDR tests are poorly suited for hard materials.
A capacitor is formed by applying double-sided conductive tape to the concrete surface. The relative apparent dielectric constant is measured using TDR technology. Combined with the mass moisture content and freeze expansion force model, the amount of ice and freeze expansion force are calculated, avoiding drilling operations.
It enables non-destructive testing of large-volume concrete test blocks, reduces testing difficulty and cost, and improves the testing efficiency and accuracy of freezing amount and freezing expansion force.
Smart Images
Figure CN121633177B_ABST