The extraction of slate generates huge amounts of waste. As much as 50% of the material is wasted during the extraction, cutting and dressing operations. Based on laboratory work carried out by author it is analysed that the slate waste can be used in the preparation of concrete blocks for application in building construction.
ON MAY 15 this year, the Supreme Court delivered a landmark judgement in response to a public interest suit demanding the closure of the 300-odd stone-crushing units in and around New Delhi. Unlicensed units were immediately closed and the rest are to be shut down by August 15.
The State Board has issued detailed guidelines from time to time to facilitate the process of grant of consent to establish/consent to operate and also to suitably guide/advice the stone crushing industry for taking appropriate measures for abatement of pollution.