Use of Fly Ash Based in Concrete

Use of Fly Ash Based in Concrete

To have a better performance characteristics in terms of durability of concrete, fly ash is been used successfully in concrete. The improvement in gel structure caused by pozzolanic action of fly ash leads to a very impervious concrete. These factors improve the resistance of concrete against external aggression. Since Fly ash is an environmental hazard, therefore by effectively using it in concrete it can be consumed constructively and thus contribute to the ecological balance. Many prestigious and critical structures have been built using either PPC or  by blending fly ash directly in concrete. The names of the famous Petronus towers & Eurotunnel can be definitely quoted in this regard. However , the  construction industry has offered some resistance in using PPC or fly ash in structural concrete. With advent of RMC the doubts regarding controls in using this material are slowly dispelled and engineers have become more open to the idea of using fly ash as pozzolan for partial replacement of cement in concrete.

“Limestone is the raw material for the manufacture cement & limestone is limited resource.” It cannot last long it ever. We need to realize the importance of this fact. We need to use our cement rationally. Whereas we talk about huge figure describing development and building needs of our country, concrete still remains the most widely used and environmental friendly construction material to achieve this.