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Video Example : Non Combustible Substances

Non Combustible Substances

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Definition of Non Combustible Substances

A non combustible substance is that which is not capable of igniting and burning

More About Non Combustible Substances

  • A non- combustible material is a substance that will not ignite, burn, support combustion
  • It does not release flammable vapors when subject to fire or heat, in the form in which it is used and under conditions anticipated
  • Examples of non - combustible materials include Portland cement concrete, gypsum concrete or magnesite
  • This class of products includes Portland cement stucco, Portland cement plaster, and gypsum plaster, as well as concrete, Brick masonry, concrete block masonry, and ceramic tiles
  • Metals except aluminum (aluminum is classified as limited - combustible),magnesium and magnesium alloys and Sheet glass, block glass, and uncoated glass fibers are classified under this class of substances
  • Inflammable substances have very low ignition temperature
  • Combustibility is a measure of how easily a substance will set on fire, through fire or combustion
  • Substances with low combustibility may be selected for construction where the fire risk needs to be reduced
  • If combustible resources are used there is greater chance of fire accidents and deaths
  • The non combustible material cannot support combustion and must not undergo a certain loss of mass
  • Concrete, steel, ceramics, in other words inorganic substances pass these tests
  • Not combustible; not able to burn is the basic rule for a non combustible substances
  • as, drapery should be made of noncombustible materials

It is difficult to burn a heap of green leaves. Why?

Answer: Heap of green leaves have a great amount of moisture content. Hence, their ignition temperature is high making them almost non combustible

Q) Which of the following are non combustible?

    a) Sand
    b) Stone
    c) Glass
    d) Steel
    e) Iron
    f) All of the above

Answer. F) All the options mentioned above are non combustible substances