Abstract:
In the Sri Lankan context, Gelatin Dynamite has been one of the
widely used explosives for rock blasting purposes. Water-gel (WG) explosive is
in the process of being introduced to the Sri Lankan mining industry. So far
there had been only a very few tests conducted to assess the suitability and to
evaluate the performance of this explosive with other available explosives.
Complaints made by the users as regard to the performance of WG have been a
cause of concern.
In this research, performance comparison of WG with Dynamite as regards rock
break-out in underground tunnelling has been carried out. Comparison of
fragmentation with the evaluation of particle size distribution in concrete block
blasting, using three types of explosives (WG, Dynamite &Emulsion) has been
one of main tests. Gap sensitivity, density and the determination of Velocity of
Detonation has also been carried out.
Citation:
Kumarage, P.I., Edirisuriya, E.M.T.G., Wanniarachchi, A.M., Hemalal, P.V.A., & Dharmaratne, P.G.R. (2013). Performance evaluation of emulsion/water-gel explosives and comparison with dynamite in Sri Lankan quarrying/mining practice In P.V.A. Hemalal (Ed.), Proceedings of the 7th National Conference on Earth Resources Management (pp. 41-46). Department of Earth Resources Engineering, University of Moratuwa.
