The purpose of this analysis was to describe the potential ergonomic hazards to which construction workers are exposed during the concrete pouring operation in the construction of concrete structures and identify potential interventions to reduce the hazards associated with the operation’s tasks. An observational analysis was performed during 5 working days for a concrete pouring process on a heavy highway construction site in Boston, MA using the PATH (Posture, Activity, Tools, and Handling) job analysis method to identify specific operations and tasks that are ergonomically hazardous. A total of 792 observations were made on 7 laborers performing 5 job tasks in the concrete pouring process. The laborers’ work was divided into 5 job tasks: preparation work, pouring concrete, spreading concrete, smoothing concrete, and clean up/miscellaneous. Non-neutral trunk postures were observed most frequently and seem to be an important risk factor for low back injury in only the smoothing concrete task. Non-neutral leg postures were observed frequently during the smoothing concrete and clean up/miscellaneous tasks while non-neutral arm postures were observed frequently during the spreading concrete and smoothing concrete tasks. Handling tools with weights of 10-20 pounds was frequently observed, but loads over 20 pounds were rare. Based on this analysis the smoothing concrete task should be targeted for intervention. Recommended controls included the use of a power screed rather than a manual screed and re-design of the long trowel for concrete smoothing, and the use of handles/belts on the concrete hose to reduce awkward trunk postures during concrete pouring.
Learning Objectives: 1. How to analyze and evaluate exposures that may lead to musculoskeletal disorders in the construction industry 2. How to develop interventions to reduce these exposures
Keywords: Ergonomics, Construction Injuries
Presenting author's disclosure statement:
Organization/institution whose products or services will be discussed: None
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.