03-11-2014, 12:37 PM
Abstracts: An important ingredient in the conventional concrete is the Portland cement. The production of one ton of cement emits approximately one ton of carbon dioxide to the atmosphere. Portland cement is responsible for upward of 85 percent of the energy and 90 percent of the carbon dioxide attributed to a typical ready-mixed concrete. The geopolymer cement uses major industrial waste - fly ash. Fly ash is generated from industrial waste and easily available around the world. Most of the fly ash is not effectively used and a large part of it is disposed in landfills. Considering this, it is clear that the use of geopolymer cement can be proved economical and also eco-friendly. The use of geopolymercement has ancient roots and has been postulated as the building material used in the construction of the pyramids at Giza as well as in other ancient constructions. In today’s time, this technology is being used widely in USA, Europe and Australia. It is being used for railway sleepers, electric power poles, road pavements, cement mortar, Marine structures and Waste containments. Current trend of research is under way to develop geopolymer systems that create a low embodied energy, low carbon dioxide binder that has similar properties to Portland cement. In addition, current research is focusing on the development of user-friendly geopolymer cement. Utilization of geopolymer cement brings economy in construction; reduce pollution and less harmful for environment. So far in India, geopolymer cement has been used in Delhi Metro Project. Thus it can be considered that Geopolymer cement, as a replacement for Portland cement has wide scope in India. An effort has been made in this project to study the advantages, application and feasibility of geopolymer cement in India.