FR2475089B3 - - Google Patents
Info
- Publication number
- FR2475089B3 FR2475089B3 FR8101718A FR8101718A FR2475089B3 FR 2475089 B3 FR2475089 B3 FR 2475089B3 FR 8101718 A FR8101718 A FR 8101718A FR 8101718 A FR8101718 A FR 8101718A FR 2475089 B3 FR2475089 B3 FR 2475089B3
- Authority
- FR
- France
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE0/199242A BE881520A (fr) | 1980-02-04 | 1980-02-04 | Dispositif ecran acoustique totalement absorbant et partiellement transparent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2475089A1 FR2475089A1 (fr) | 1981-08-07 |
| FR2475089B3 true FR2475089B3 (Direct) | 1984-01-06 |
Family
ID=3843301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8101718A Granted FR2475089A1 (fr) | 1980-02-04 | 1981-01-29 | Dispositif ecran acoustique totalement absorbant et partiellement transparent |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2475089A1 (Direct) |
-
1981
- 1981-01-29 FR FR8101718A patent/FR2475089A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2475089A1 (fr) | 1981-08-07 |