Handbook on Concrete Block Paving

In most countries, a high percentage of roads have been constructed mainly using asphalt and concrete. However, people, realizing defects in these roads gave rise to the idea of having other options for constructing roads. Since the unit cost of a concrete road is very high, it is quite unbearable for countries with a developing economy. There are several disadvantages to asphalt pavement roads. Bitumen; the primary material asphalt, comes as a byproduct of purified crude oil. Therefore the prices of bitumen also increase parallel to the escalating crude oil prices. The most vital issue is that bitumen may not be a substantial construction material any more, due to the rapid depletion of crude oil. As a result of that, the road designers try to improve the existing road construction technology to suit the present era. This ‘Concrete Block Paving’ (CBP) concept is based on the concept of ‘Stone Paving’ which lasted in the world thousand years back. There are only fewconcrete block pavements in Sri Lanka. TheRoadDevelopment Authority and Provincial Road Authorities are going to promote CBP for rural roads as an alternative for bitumen .roads, considering the benefits such as low construction and maintenance cost, aesthetic appearance, and durability

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