TARMAC VS ASPHALT VS BITUMEN

  Tarmac Asphalt Bitumen
According to British and English Refer to black viscous material derived from the destructive distillation of coal and is chemically distinct from bitumen Refers to a mixture of mineral aggregate and bitumen Refers as asphalt or cement in engineering jargon, or road surfaces
Elaboration Road paving material that was patented in 1901 by Edgar Purnell Hooley A  composite material that is required for construction, used for the paving of road surfaces A semi solid or a liquid form of petroleum that is sticky black and highly viscous in nature
What it is? Process of binding together smaller aggregates Mixture of bitumen and minerals Is a product of the oil-refining and petro-chemical industries
Is it environmental friendly? Yes Yes Yes

Construction materials are necessary to build a concrete foundation of a facility, a premise, or a house. It is also used as cement in the construction of bridges and roads to improve public infrastructures. The typical materials being utilized are asphalt, bitumen and tarmac. What are the distinctions of these three?

What is Asphalt?

 Asphalt is chiefly used as cement in paving roads and bridges. It is in a form of semi-solid or liquid petroleum having a black color and with a viscous texture. As a matter of fact, it is composed of a kind of material called as bitumen, the latter holds the mineral aggregates to have a sturdy mixture of sand, rocks and pebbles for construction purposes.

There are various types of asphalt concretes depending on the facility to be built such as Hot Mix, warm mix, cold mix, cutback and sheet or mastic asphalt concretes. The main difference among these types of asphalt is the mixture of the construction materials and mineral aggregates as well as the temperature and viscosity of the asphalt. 

What is Bitumen?

 Bitumen is an element produced by the nature merely found in mineral deposits and a product of petroleum. It is also a result of remains from primeval algae and organisms which are buried for a long time along with the extreme temperatures and converted by nature into the bitumen. It has a viscous characteristic that serves as a binder in combining the mineral particles to form a concrete base. Aside from its usage in terms of road construction, it may also be used in roofing buildings or houses. Bitumen is also known as a pavement or blacktop.

 What is Tarmac?

At the time of 8th century AD, the tarmac was discovered on the Baghdad streets, whereas the road was cemented with tarmac. John Loudon McAdam introduced the macadamisation construction method, whereas the concreteness of the road surface can even allow the travelers with heavy carriages to cross conveniently yet during this time, these roads can be easily damaged by heavy rainfall and erosion. In 1834, John Henry Cassell introduced the stabilization process of paving the macadam roads with tar materials and later named “Pitch Macadam”. The purpose of the enhanced construction mixture is to allow the vehicles in travelling the roads and to have a firm foundation against the damage caused by the weather elements.

Nowadays, the modern tarmac contained Portland cement, resin and pitch in its mixture that manifest a solid compact and which was patented by Edgar Purnell Hooley. Its history made a contribution to its name that is why it is also referred to as tar macadam.

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