Browsing ERE - 2011 by Author "Hemalal, PVA"

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  • Minimization of secondary fragmentation with a view to enhancing the blasting economics 
    Piomathusoothanan, F; Batugampala, BBMP; Harischandra, YCK; Amaranath, RMSPK; Hemalal, PVA; Dharmaratne, PGR [Conference-Full-text]
    Construction materials have a huge demand and become an expensive commodity due to limited quarry activity. Further Research and Development (R and D) is very important in quarry industry in order to minimize the cost ...
  • Optimization of blasting geometry for different rock types 
    Sameera, JDAM; De Silva, HCN; Vijithan, K; Wamasooriya, WMNT; Chminda, SP; Abeysinghe, AMKB; Hemalal, PVA [Conference-Full-text]
    Sri Lankan quarries observe their own blasting parameters and standards mainly based on experience gained over the years. Some of them are not the optimum values, due to the fact most of the quarries economical problems. In ...
  • Performance evaluation of emulsion/water-gel explosives and comparison with dynamite in Sri Lankan quarrying practices 
    Sanjeewa, KWD; Fernando, PLD; Zoysa, AUD; Ramees, AM; Hemalal, PVA; Dharmaratne, PGR [Conference-Full-text]
    At present, Dynamite is currently manufactured only in a few countries as a commercial explosive due to its high cost hazardousness. Therefore import and supply do not match the demand patterns which inevitably result in ...