| Document ID (ISN) | 30844 |
| CIS number |
79-389 |
| ISBN(s) |
3-88314-006-6 |
| Year |
1978 |
| Convention or series no. |
|
| Author(s) |
Seiler H. |
| Title |
Reduction of concrete block machine noise with accessory soundproofing attachments |
| Original title |
Lärmminderung an Betonsteinmaschinen durch schallschluckende Nachrüstsätze [in German] |
| Bibliographic information |
Forschungsbericht Nr.177, Bundesanstalt für Arbeitsschutz und Unfallforschung, Postfach, 4600 Dortmund-Dorstfeld, Germany (Fed.Rep.), 1978. 33p. Illus. 33 ref. Price: DM.8.75. |
| Abstract |
The results of studies on vibrating cars of ground finishers for making concrete blocks, paving stones and kerbs are reported. An initial reduction in the sound level from 112 to 94dB(A) was attained, but the quality of the concrete suffered. Further research lead to the development of soundproofing linings and partial enclosures composed of newly developed materials, a rubber-metal sandwich which could be added to existing machinery. These measures and modifications in machine design produced a reduction in the sound pressure level from 115 to 88dB(A), without loss of product quality. |
| Descriptors (primary) |
cement industry; noise control; compacting presses; manufacture of prefabricated elements |
| Descriptors (secondary) |
vibration; acoustic enclosure; sound absorption; economic aspects |
| Document type |
- |
| Subject(s) |
Noise, hearing and vibration
|
| Broad subject area(s) |
|
| Browse category(ies) |
Noise
Cement and concrete
|
