What is an asphalt rock?

Asphalt rock is formed when oil layers solidify in the pores of another rock. Most of them were created naturally, millions of years ago, although it is possible for engineers to create asphalt rocks artificially. The asphalt rock is made of hardened asphalt, which is also known as tar, a substance created when oil dries. This type of rock is used for roads since antiquity.

Although there are a number of minerals that may be present in the asphalt rock, the main component is oil. Over time, heavier oil components settle while lighter components evaporate. The material that remains behind is in accordance with the strong liquid to crumbly sand or stone. This heavier substance, when it comes to liquid, is known as asphalt. Fixed pieces of oil can be formed in asphalt rock.

petroleum becomes asphalt rock because it solidifies in the pores of other rocks, especially limestone and sandstone. Only about 5% to 15% of the total composition of the rock is asphalt, the rest isthe stone in which the asphalt is stored. The extraction of asphalt from other types of rocks can be a costly and time -consuming process.

Asphalt is not part of all limestone or sandstone deposits. Drill small test holes in the familiar bearings of these types of rocks to see if the asphalt rock is present. Most of the asphalt rock, which naturally occurs, was created at Pennsylvan's age, about 300 million years ago, or in the chart, between 65 and 145 million years.

The most common use for asphalt rock is the construction of roads and people have used asphalt on roads for many hundreds for many years. Natural asphalt rock, which was historically used, but which is often not used on modern roads, contains both a hard stone, which forms a strong surface for the road and material that binds crushed pieces to the one together. Another liquid asphalt can be added to the rock to make better pŘetojil. On the road, the decaying pieces of stone can be used, adding liquid asphalt to join the pieces together.