Cement evaluation using neutron tool
US-10690802-B2 · Jun 23, 2020 · US
Non-destructive inspection method
US11609190B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11609190-B2 |
| Application number | US-201817041963-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 27, 2018 |
| Priority date | Mar 28, 2018 |
| Publication date | Mar 21, 2023 |
| Grant date | Mar 21, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The non-destructive inspection method includes: a water absorbing or drying step of changing a water-content state of a test piece; a transmission image capturing step of irradiating, with a radiation, the test piece absorbed water or dried for a predetermined time in the water absorbing or drying step and capturing a transmission image created by visualizing the radiation transmitted through the test piece; and an evaluation step of evaluating the test piece on the basis of the water-content state of the test piece determined from the transmission image captured in the transmission image capturing step.
First claim
Opening claim text (preview).
The invention claimed is: 1. A non-destructive inspection method comprising: a water absorbing or drying step of changing a water-content state of a test piece from a dried state or a water-saturated state; a transmission image capturing step of irradiating, with a radiation, the test piece absorbed water or dried for a predetermined time in the water absorbing or drying step and capturing a transmission image created by visualizing the radiation passed through the test piece; and an evaluation step of evaluating the test piece on the basis of a volume change of the test piece correlating with the water-content state of the test piece determined from the transmission image captured in the transmission image capturing step. 2. The non-destructive inspection method of claim 1 , wherein the test piece is concrete. 3. The non-destructive inspection method of claim 2 , wherein the radiation used in the transmission image capturing step is a neutron. 4. The non-destructive inspection method of claim 2 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes non-uniformity of a water permeation height. 5. The non-destructive inspection method of claim 2 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a variation of a water permeation rate into the test piece. 6. The non-destructive inspection method of claim 2 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a time differential of a water absorption rate of the test piece. 7. The non-destructive inspection method of claim 1 , wherein the radiation used in the transmission image capturing step is a neutron. 8. The non-destructive inspection method of claim 7 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes non-uniformity of a water permeation height. 9. The non-destructive inspection method of claim 7 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a variation of a water permeation rate into the test piece. 10. The non-destructive inspection method of claim 7 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a time differential of a water absorption rate of the test piece. 11. The non-destructive inspection method of claim 1 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes non-uniformity of a water permeation height. 12. The non-destructive inspection method of claim 11 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a variation of a water permeation rate into the test piece. 13. The non-destructive inspection method of claim 11 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a time differential of a water absorption rate of the test piece. 14. The non-destructive inspection method of claim 1 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a variation of a water permeation rate into the test piece. 15. The non-destructive inspection method of claim 14 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a time differential of a water absorption rate of the test piece. 16. The non-destructive inspection method of claim 1 , wherein the water-content state of the test piece determined from the transmission image in the evaluation step includes a time differential of a water absorption rate of the test piece.
Assignees
Inventors
Classifications
- G01N33/383Primary
Concrete or cement · CPC title
embedding or impregnating the object · CPC title
moisture · CPC title
- G01N23/05Primary
using neutrons · CPC title
the radiation being neutrons · CPC title
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Frequently asked questions
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- What does patent US11609190B2 cover?
- The non-destructive inspection method includes: a water absorbing or drying step of changing a water-content state of a test piece; a transmission image capturing step of irradiating, with a radiation, the test piece absorbed water or dried for a predetermined time in the water absorbing or drying step and capturing a transmission image created by visualizing the radiation transmitted through t…
- Who is the assignee on this patent?
- Topcon Corp, Riken
- What technology area does this patent fall under?
- Primary CPC classification G01N33/383. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 21 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).