Ex-Joint Director, National Council for Cement and Building Materials, New Delhi
Online published on 27 April, 2023.
The development in dam construction in India covering the use of right construction materials, distress observed due to deleterious alkali-aggregate reaction in some of the dams, current scenario in the use-of blended cements with at least 25% flyash or with at least 50% ground granulated blast furnace slag and 5-10% silica fume (as necessary for the development of high strength and abrasion resistance of-concrete) have been highlighted, with a few case histories. Recommendations have been made to use more and more factory-made blended cements in the construction of concrete dams, spillways, stilling basins, tunnel linings,desilting chambers and power house structures, towards a sustainable and durable concrete structures in hydro-electric projects, using green construction materials.
