What is Asphalt?

What is Asphalt10


Asphalt, also known as bitumen, is a black, extremely viscous and sticky liquid (semi-solid form of petroleum). It is either found in natural deposits or is obtained via distillation as a refined product. It was also referred to as ‘asphaltum’ till the 20th century. The use of asphalt/bitumen dates back to fifth millennium B.C. It can be recycled and is in fact the most recyclable material on earth.What is Asphalt19

How Does Asphalt Work? SONY DSC What is Asphalt15

Asphalt is solid at room temperature and to use it, we usually heat it to 300 degrees Fahrenheit along with sand and gravel in a rotating heated drum. The mixture is then moved to a dump truck and carried to site where it has to be used. If it’s a road; an asphalt spreading machine is used for laying it. The mixture usually takes hours to cool down after which the asphalt solidifies.

Types of AsphaltWhat is Asphalt7 What is Asphalt14 What is Asphalt18 What is Asphalt17 What is Asphalt11

  • Hot Mix Asphalt Concrete
  • Warm Mix Asphalt Concrete
  • Cut-back Asphalt Concrete
  • Asphalt Emulsion
  • Rolled Asphalt

Applications of AsphaltWhat is Asphalt2 What is Asphalt3 What is Asphalt4 What is Asphalt5 What is Asphalt16

  • Road Construction
  • Waterproofing
  • Roof Sealing
  • Concrete

Precautionary Measures OLYMPUS DIGITAL CAMERA What is Asphalt12 What is Asphalt13

  • The working temperature of Asphalt is high.
  • Workers should wear protective clothing.
  • All the workers must be aware of first aid.
  • Dump truck’s route should be kept clear.
  • Workers should not move in between paving machine and backing trucks.
  • Workers must be active and observant at all times.

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