Experimental studies on Geopolymer concrete with fibers

Abstract

The conventional binding agent in concrete is Ordinary Portland Cement (OPC). But the production of cement is highly energy-intensive which involves more emission of CO2 into the atmosphere. This problem is increasing day by day since the utility of OPC is increasing at enormous rate. And the world wide construction area has been increased in large number which also increases the production of cement. Hence to reduce the alarming effect of emission of CO2,it is very much important to find the alternative source of cement which does not emit CO2and to reduce the hazardous of green house effect and environmental impact. with this as the main objective another binding agent and concrete without cement has been introduced as Geo Polymer Concrete (GPC).It is also known as inorganic polymer, an alternative binder with fly ash as the source material instead of cement, even though the mechanism and behavior of GPC entirely differs from Conventional Concrete. Recent research has established that fly ash based Geo Polymer is the best alternative for Cement Concrete. Many research works have been carried out in concrete with the partial replacement of waste materials and recycling materials such as quarry rock dust, recycled coarse aggregate , blast furnace slag. A huge amount of artificial waste fibers such as plastic, rubber, tyre, nylon, and natural waste materials like palm tree fibers, sugarcane bagasse, sisal fibers is used in the manufacturing of concrete. By considering all these factors, the present investigation, is divided into three modules. The first module deals with the selection of optimum mix of concrete. The second module deals with the optimum fiber fraction. The third stage deals with the application of precast concrete product such as paver block incorporating this optimum mix and optimum fiber fraction newline