Assessment of Concrete Strength Using Inexpensive Locally Available Materials -Flyash and Microfine Barites in Place of Concrete in Application of Building, Dam, Road Etc

Concrete is the most versatile material for all types of construction works and has been used for innumerable construction works either, as plain concrete or as reinforced cement concrete or as precise concrete or prestressed concrete or in many other forms. Except water, no other material is being used in such large quantities About 12,000 million tones of concrete is used globally. The various ingredients of concrete are Cement, Water, Fine Aggregate and Coarse Aggregate. Ordinary Portland Cement (OPC) is the chief constituent of concrete. The production of Portland cement contributes about 7% of worlds total greenhouse gas CO emissions. Today, all nations including developed and developing countries facing a problem of environmental pollution Cement industry is one of the dominant industries in the galaxy of industries that have been cropped up in the recent past. If the Portland cement is manufactured in huge quantities, the chief raw material of lime stone reserves will be exhausted in the coming years. The production of Tone of Cement consumes 1.5 Tones of lime stone consequently 1 tone of CO₂ is emitted into the atmosphere. Hence studies are conducted to explore the alternate locally available inexpensive materials in place of ordinary Portland cement to the possible extent. The Pozzolonic materials generally used in concrete are Fly-ash, Ground granulated blast furnace Slag, Silica fume, Rice husk ash and Meta Kantian. The Rayalaseema Thermal Power Plant is located at Kallamalla, Yerraguntla Mandal, YSR Kadapa district produces about 1 Million tone of Fly-ash annually. Barites, an inert mineral with specific gravity ranging from 3.8 to 4.6 is abundantly available in Mangampeta which is located 129 Km away from Anantapuram district. Barites can be mixed and grounded easily to get micro-fine powder form.