 NEW BLENDED CEMENTS Paper Presented at INDIAN CEMENT REVIEW CONFERENCE 2014 ON SUSTAINABILITY IN INDIAN CEMENT INDUSTRY 6 JUNE 2014, MUMBAI, INDIA  In
India, majority of cement produced is of blended variety, with fly ash and
blast furnace slag as the mineral admixtures used for blending. Blended cements
production reduces clinker production thereby leading to conservation of
natural resources and energy and also substantial reduction in the CO2
generation, which is a green house gas. The production of blended cements also
leads to utilization of two major industrial wastes, coming from thermal power
stations and the integrated steel plants. The application of blended cement in
concrete imparts better strength and durability properties to the structure.
Keeping these aspects in mind, the presentation illustrates the characteristics
of two varieties of blended cements, new to Indian cement industry, namely
Portland Limestone Cement (PLC) and Portland High Volume fly Ash Cement (PHFC). The conference was attended by prominent figures from the cement and construction industry. The major organisations represented were: Cement Manufacturers' Association (CMA), Reliance Cement, World Business council for Sustainable Development (WBCSD), Ambuja Cement, ACC, Siemens, Allan Smith, Thermax. |