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Asbestos Learning Tool

Asbestos Learning Tool






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    Asbestos Learning Tool Asbestos Learning Tool Presentation Transcript

    • The Hidden Killer
    • Learning Outcomes
      Demonstrate understanding of the dangers associated with asbestos
      Recall the 3 different sources of asbestos
      Identify where asbestos can be found in day to day use
    • Asbestos – a brief overview
      The Hidden Killer!
    • First task – 5 minutes
      On the piece of paper in front of you, I want you to think of the following questions and write your response – for all to see:
      What does asbestos mean to you?
      Can you state an example of asbestos that you have seen?
    • What is Asbestos?
      Asbestos is a term given to a number of naturally occurring mineral fibres which have been exploited commercially for their useful properties.
      Asbestos is mined throughout the world - South Africa, Australia, Canada
      3 most common types:
      Amosite (brown)
      Crocidolite (blue)
      Chrysotile (white)
    • Asbestos Fibres
      Chrysotile fibre bundle (image 600 x magnification) exposed on the surface of a weathered cement sheet.
      Amosite fibre bundle (image 2000 x magnification)
      Individual amosite fibres
    • Asbestos Useful Properties
      High tensile strength
      Chemical resistance
      Good thermal insulation
      Flexible - can be woven
      Can be mixed with cement and plastic and retain its properties
    • History of Asbestos Use in UK
      First imported ~1880s
      Main period of use 1950 – 1980
      1973 - Voluntary industry ban on spraying of asbestos
      1985 – Supply of amosite and crocidolite prohibited
      1999 - Use of all forms of chrysotile prohibited
    • Advert from New Scientist
      June 1957
    • Application of sprayed asbestos coating c1950-1960
    • Asbestos Related Disease
      Pleural Plaques
      Fibrosis/scarring of lung
      Dose related (mod-high) and progressive
      Lung Cancer
      Specific cancer of inner lining of chest wall or abdominal cavity
      Nearly always fatal
      Onset can range from 10 – 60 years after first exposure to asbestos.
    • What this means in ‘real terms’
      YouTube - Ian Wright's Asbestos Warning
    • Group activity – 5 minutes
      In groups, discuss the video and facts on the use of asbestos.
      What have you learnt that has highlighted the dangers of asbestos?
      Note your findings down on the flipchart paper and choose a person to feedback
    • Asbestos Exposure - Past and Present
      Manufacture of asbestos products.
      Installation of asbestos products.
      Removal of asbestos containing materials (ACMs) without suitable controls.
      Inadvertent disturbance of ACMs during maintenance activities.
      Past Exposure
      Present Exposure
    • Release of Fibres from ACMs: Friability
      Loose-fill lagging
      Sprayed insulation
      Asbestos insulation board
      Asbestos cement
      Floor tiles
    • Good Control v Poor ControlTypical Exposure Levels
    • Real life account
      The Hidden Killer - Christopher Morgan's Story
    • Group activity – 5 minutes
      I’m sure you will agree that what you have just seen was a very ‘moving’ video, with some very clear messages.
      Discuss what important message you will take away with you today?
      Nominate a person in your group to feed back.
    • Asbestos insulating board used as a ceiling board for fire resistance, plumber wasn’t informed/aware when he fixed the leak
    • Loose infill under floorboards exposed during central heating installation – Refurbishment survey not completed
    • Non licensable ACMs
      Asbestos cement
      Textured coatings
      Composite materials
    • Asbestos Essentials for Non Licensed Tasks
    • Licensable ACMs
      Asbestos Insulating Board
      Sprayed coatings
    • Individual Task
      Complete the task sheet –
      ‘The hunt for asbestos’
      Consider the areas listed and the ‘bubbles’ on the house picture – where are ACM’s situated?
      Good luck!
    • Learning Outcomes
      Demonstrate understanding of the dangers associated with asbestos
      Recall the 3 different types of asbestos
      Identify where asbestos can be found in day to day use