Push For Fly Ash Use in Roads

(India Times 7-12-2010) The environment department wants fly ash to be used extensively in various types of construction work, particularly roads and highways. The state flyash management committee will hold a meeting later this month to assess the progress made so far in this regard. 
State environment department law officer Biswajit Mukherjee said fly ash was already being used to build highways. "At many places, construction agencies are using fly ash in road and highway construction. It is a very effective material for construction purposes. We will hold a meeting on July 26 to take stock of the situation," he said. 
Last year, a high-level committee was formed to carry out surveys and formulate a plan for fly ash-based road construction in the city. It also had to explore the feasibility of using fly ash in the construction and repair of river embankments. "More surveys have to be carried out to find out how effective fly ash could be in various types of construction-related work. If fly ash could be used effectively, it could set an example on how to use waste for construction purposes," said an official. 
Mastic asphalt has already emerged as a viable option and now steps are afoot to see if fly ash can be used to further improve road quality. Fly ash has gained acceptance across the country, particularly in the construction of highways. In West Bengal, the authorities are also contemplating whether to rebuild the damaged river embankments in the Sunderbans using fly ash. 
Fly ash, a residue generated by burning coal, is found in places where coal-based power plants are situated. Pollution caused by fly ash could be hazardous as people could suffer from severe respiratory and skin problems. Studies have shown that people living in areas where fly ash is generated suffer more from these diseases.
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