DE3823220C2 - - Google Patents
Info
- Publication number
- DE3823220C2 DE3823220C2 DE3823220A DE3823220A DE3823220C2 DE 3823220 C2 DE3823220 C2 DE 3823220C2 DE 3823220 A DE3823220 A DE 3823220A DE 3823220 A DE3823220 A DE 3823220A DE 3823220 C2 DE3823220 C2 DE 3823220C2
- Authority
- DE
- Germany
- Prior art keywords
- cavity
- prestressed concrete
- radionuclide
- precast
- determined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011513 prestressed concrete Substances 0.000 claims description 30
- 210000002435 tendon Anatomy 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000004567 concrete Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 5
- 239000011178 precast concrete Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000011835 investigation Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 230000009969 flowable effect Effects 0.000 claims description 2
- 239000004413 injection moulding compound Substances 0.000 claims 1
- 239000004570 mortar (masonry) Substances 0.000 claims 1
- 238000005253 cladding Methods 0.000 description 10
- 238000003825 pressing Methods 0.000 description 10
- 239000011440 grout Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Reinforcement Elements For Buildings (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3823220A DE3823220A1 (de) | 1988-07-08 | 1988-07-08 | Verfahren zur lokalisierung von hohlraeumen u. dgl. in betonbauwerken und betonfertigteilen, insbesondere in spannbetonbauwerken |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3823220A DE3823220A1 (de) | 1988-07-08 | 1988-07-08 | Verfahren zur lokalisierung von hohlraeumen u. dgl. in betonbauwerken und betonfertigteilen, insbesondere in spannbetonbauwerken |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3823220A1 DE3823220A1 (de) | 1990-01-11 |
| DE3823220C2 true DE3823220C2 (cs) | 1993-06-03 |
Family
ID=6358290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3823220A Granted DE3823220A1 (de) | 1988-07-08 | 1988-07-08 | Verfahren zur lokalisierung von hohlraeumen u. dgl. in betonbauwerken und betonfertigteilen, insbesondere in spannbetonbauwerken |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3823220A1 (cs) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093199B (zh) * | 2006-06-23 | 2010-12-29 | 东南大学 | 预应力混凝土结构灌浆空洞的无损检测方法 |
| CN101196481B (zh) * | 2006-12-08 | 2011-01-05 | 同方威视技术股份有限公司 | 可变裂缝测试装置及其测试方法 |
| US9651447B1 (en) * | 2016-03-06 | 2017-05-16 | The Boeing Company | Radiographic method and apparatus for detection of cracks, defects, or leak pathways in materials and assemblies |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB944402A (en) * | 1960-01-26 | 1963-12-11 | Cons Electrodynamics Corp | Method of testing a body for porosity and the like |
| US3621252A (en) * | 1969-11-28 | 1971-11-16 | Industrial Nucleonics Corp | Process and apparatus for defect detection using a radioactive isotope |
| FR2301003A1 (fr) * | 1975-02-17 | 1976-09-10 | Electricite De France | Procede et dispositif de controle d'etancheite d'ouvrages, notamment en beton |
| DD233761A3 (de) * | 1984-01-25 | 1986-03-12 | Cottbus Wohnungsbau | Verfahren zur ermittlung von rissen in betonen und verwandten materialien |
| GB8407655D0 (en) * | 1984-03-23 | 1984-05-02 | Rolls Royce | Analysing fluid flows within hollow bodies |
-
1988
- 1988-07-08 DE DE3823220A patent/DE3823220A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3823220A1 (de) | 1990-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings | ||
| 8339 | Ceased/non-payment of the annual fee |