Procedimento de trabalho seguro para Reboco — crie com RAMSagent
A method statement for plastering describes the removal of existing plaster, plastering with mortar (lime-cement, cement, lime), and finishing plaster. It includes respirable crystalline silica, alkaline skin damage, scaffold safety, and vibration from pneumatic tools in accordance with HSE guidance.
RAMSagent recommends wet plastering or H-class extraction to remain below the limit for respirable crystalline silica.
Riscos típicos para Procedimento de trabalho seguro — Reboco
| Risco | Descrição | Legislação | Gravidade |
|---|---|---|---|
| Respirable Crystalline Silica | Removing and mixing plaster mortar releases respirable crystalline silica. Dry grinding is prohibited without H-class extraction — wet grinding is the standard. | AFS 2023:10, 3 kap | Alta |
| Alkaline Skin Damage | Cement mortar and hydraulic lime mortar have a pH >12. Skin and eye protection are mandatory. | AFS 2023:10, 8 kap | Alta |
| Falls from Scaffolding | Plastering is performed from scaffolding in class 3–4. Materials must be lifted mechanically, not carried, and the scaffold platform must be clean. | AFS 2013:4; AFS 2023:11 | Alta |
| Vibration from Chipping Machine | Removing existing plaster with a pneumatic chisel causes hand-arm vibration. A(8) over 2.5 m/s² requires action. | AFS 2005:15 | Alta |
Regulamentos aplicáveis
- AFS 2023:10 Chemical Workplace Risks
- Chapter 3 (respirable crystalline silica) and Chapter 8 (skin exposure to alkaline mortars).
- AFS 2013:4 Scaffolding
- Plaster scaffolding is designed for materials and mortar — typically class 3–4.
- AFS 2005:15 Vibrations
- Action and limit values for hand-arm vibration during chipping and mixing.
Perguntas frequentes
- What scaffold class is required for plastering?
- Typically class 4 (250 kg/m²) since materials are stored on the scaffold. For light plastering only, class 3 may suffice — RAMSagent selects based on projected load.
- Can plaster be dry ground?
- Only with H-class extraction directly on the machine plus FFP3 as secondary protection. In practice, wet grinding is standard as it is safer.
Guias relacionados
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