3A     Noise and Dust: Reducing Silica Hazards in Cutting (and Destroying) Concrete (Basic)
Susan Shepherd – Univ. of Mass-Lowell
Custodio Muianga – Univ. of Cincinnati

Part one of this session examines noise levels produced by five different saw blades in a gas-powered, handheld concrete saw, then shows dramatic results of “wet cutting,” or use of a 3-gallon water tank spray, to reduce dust and exposure to silica. Part two also examines silica exposure during small-scale interior demolitions. Work practices and worker materials are examined, and presenter a task-based control guidance sheet on the subject for supervisors and employees will be distributed.