Análise dos níveis de ruído durante o processo de concretagem com conjunto caminhão betoneira - autobomba

Abstract

This study consists of an evaluation of the noise level emitted during the pumped concrete process. Because it is necessary to use large equipment in these processes, wich are generally noisy, workers may be exposed to excessive levels of sound energy incompatible with the regulatory standard, thus requiring the use of safety equipment. Using the decibel meter, six sound pressure measurements were made, divided between three categories of employees during the operation of the machines. Subsequently, an investigative questionnaire was applied to 30 employees in an attempt to assess whether the main symptoms of pathologies related to hearing loss are noticeable in workers and whether safety measures are being taken. The results obtained showed that workers are exposed to noise levels that make their work environment unhealthy if there is no way to mitigate this noise and there is strong evidence that employees may be developing noise induced hearing loss.