It is thus abundantly abundantly clear from the properties of road building materials used then, that due importance was given to the wear and tear and damage caused by wheels of chariots, horsesвЂ™ hooves and horse driven vehicles, to stone pavements.

In this context, it is interesting to note that the stone used there for purposes of paving roads was brought from outside the region and had a higher resistance to abrasion than the local stone variety commonly used in buildings near the site of excavations. Nearer home, some recent excavations of old road works at Fatehpur Sikri near Agra have revealed that about 500 years back, hard stone blocks set with lime mortar were used for paving purposes at that time. The use of brick pavements for road construction, in the ancient Indus Valley civilization of our country, is also a proven fact. Evidence of such pavements using clay bricks laid in coal tar mortar, can still be seen in Babylon and surrounding surrounding areas, where as early as 3000 BC, the earliest use of coal tar in road construction was recorded. Even 5000 years ago, brick pavements for highways were commonly used, as it can be seen in the old ruins in the West Asian Region, which was earlier known as Mesopotamia. The concept of block pavements for roads is not new. concrete block paving, in this article, as the technique has certain unique advantages, advantages, which make it superior to the It is proposed to discuss the last-named i.e. Rigid Rigid concrete concrete pavements pavements can be construct constructed ed in a variety variety of ways ways вЂ“ plain plain jointed jointed concrete, concrete, fiberвЂ“reinfor fiberвЂ“reinforced ced concrete concrete, roller roller compacted concrete, continuously reinforced concrete, pre-stressed concrete and concrete block paving. Paved surfaces can be flexible (various types of bitumen or tar), rigid (concrete, stone, brick etc.) or a combination of the two Unpaved surfaces include earthen (reinforced or unreinforced), gravel and Water Bound Macadam (WBM). A good network of roads is vital for a developing country to become a developed one, since trou troubl blee-fr free ee

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