THE EFFECT OF THERMİC POWER PLANT WASTE FLY ASH ON PROPERTİES OF PORTLAND CEMENT

Abstract

Today, increasing environmental awareness, national and international environmental policies are in parallel and getting stricter. The Concrete sector is criticized and under spotlight for consuming a billion tons natural resources and large amount of energy and high emissions from cement production - especially CO2. These criticisms are tried to be resolved with alternative ways. Fly ash in concrete and cement production, with the use of industrial wastes with pozzolanic properties such as blast furnace slag and silica fume, more sustainable and more durable end products can be obtained. The Fly ash, which is wastage of coal-based thermal power plants, it is easily accessible and it is one of the most used cement substitute materials due to its suitable fineness and chemical structure. With the appropriate use of fly ash, sufficient or even superior performance can be achieved in concrete. In this thesis study, the fly ash supplied from the thermal power plant will be substituted in CEM I 42.5 R cement at the rates of 0%-10%-20%-30% and will be subjected to various analysis studies determined in accordance with Turkish standards in the cement industry quality control laboratory. In this study, the physical, chemical and mechanical effects of fly ash on Portland cement were investigated by using fly ash from the Thermal Power Plant and CEM I 42.5 R cement together.