Betonul autocompactant – cheia organizării ergonomice a lucrărilor de construcţii
Self-compacting concrete - the key to ergonomic organization of construction works

Author(s): Aurelia Bradu, Adrian-Alexandru Ciobanu, Monica Cherecheş,, Florina FILIP, Marius MÂRŢ
Subject(s): Architecture
Published by: INCD URBAN-INCERC
Keywords: self-compacting concrete; casting concrete; ergonomics
Summary/Abstract: The key factor in a successful company is established by the degree of employee satisfaction. It is fundamental for the enterprise to optimize the working environment to achieve peak performance in employee activity. Even so, it should be pointed out that non-compliance with these conditions not only involves the personal discomfort of workers şi organizational imbalance but also significantly affects the work efficiency, its quality şi the risk of illness among employees. Encouraging safety is a judicious managerial resolution şi it is worth paying the financial costs instead than supporting from economical or production losses related to a lack of safety şi health. The ergonomics scientific discipline was conceived in the '50s, in order to optimize human well-being şi overall working system performance. The notion of "ergonomics" comes from the greek language: ergos - means work şi nomos - law, norm. The ergonomic organization of the workspace aims to at prevent discomfort şi therefore maximizing productivity şi efficiency. This phenomenon is based on the movement economy premises, which relieves the worker of unnecessary fatigue. Construction workers execute many physically demanding charges that exhibit them to risk factors for soft tissue or musculoskeletal injuries. The research studies made on construction sites şi precast concrete plants, evinced the connection between occupational factors, such as heavy lifting, repetitive motions, awkward postures şi low-back disorders amid concrete employees. This paper presents a comparative exposure assessment to musculoskeletal disorders using conventional vibrated concrete şi self-compacting concrete (SCC) on concrete casting. The elimination of the vibration process on casting concrete leads to a substantial improvement of the working conditions. The properties of SCC fresh mixture reduce the necessary qualified labor. Thus, self-compacting concrete contributes to the exclusion of laborious operations from concrete casting process, minimize risk factors şi decrease the exposure degree of workers, which produce an ergonomic environment of construction employees.

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