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Silicosis Prevention: Tool Box Session

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Presentation on theme: "Silicosis Prevention: Tool Box Session"— Presentation transcript:

1 Silicosis Prevention: Tool Box Session

2 Georgia Tech Safety and Health Consultation Program
What is Silica? Composes 15% of Earth’s Crust Examples: Sand, Granite, other “Hard” rocks Quartz, most common Crystalline Silica has a diagnostic X-ray diffraction pattern Georgia Tech Safety and Health Consultation Program

3 Georgia Tech Safety and Health Consultation Program
Silica and Disease 250 Worker deaths per year (175 deaths/yr from trenching accidents) Silicosis Tuberculosis Heart Disease Lung Cancer? Suspect Hum. Carcinogen –A2 (ACGIH) Georgia Tech Safety and Health Consultation Program

4 Examples of Silica Exposures in Construction
Georgia Tech Safety and Health Consultation Program

5 Georgia Tech Safety and Health Consultation Program

6 Georgia Tech Safety and Health Consultation Program

7 Georgia Tech Safety and Health Consultation Program

8 Georgia Tech Safety and Health Consultation Program
Tuckpointing Georgia Tech Safety and Health Consultation Program

9 Controls for Silica

10 Types of Engineering Controls
1. Wet Methods 2. Ventilated Tools 3. Abrasive Blasting Controls: Alternate Media Alternate Processes Georgia Tech Safety and Health Consultation Program

11 Wet Methods: Joint Cutting
Georgia Tech Safety and Health Consultation Program

12 Wet Methods: Portable Saw
Georgia Tech Safety and Health Consultation Program

13 Wet Methods: Pre-planning
Georgia Tech Safety and Health Consultation Program

14 Wet Methods: Block Cutting
Georgia Tech Safety and Health Consultation Program

15 Engineering Control 2. Ventilation
4/1/2017 Engineering Control 2. Ventilation Portable tools with dust exhaust: Surface Grinders Disc Grinders (tuck pointing) Crack chaser Scarifier Descaler Power chipping tools Retrofit Dust hoods Georgia Tech Safety and Health Consultation Program

16 Control by Ventilation: Slab Cutting
Georgia Tech Safety and Health Consultation Program

17 Control by Ventilation: Hand tools
Georgia Tech Safety and Health Consultation Program

18 Control by Ventilation: Tuckpointing
Georgia Tech Safety and Health Consultation Program

19 Engineering Controls: 3. Substitute Abrasives
Coal slag (“black beauty”) Steel grit & steel shot Aluminum oxide Sodium Bicarbonate (baking soda) Dust Suppressed Sand Frozen CO2 Ag. Prod. (walnut shells, corn cobs) Georgia Tech Safety and Health Consultation Program

20 Silicosis is not a Curable Disease
Prevention is critical Use Safe Work Practices Georgia Tech Safety and Health Consultation Program


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