EXPERIMENTAL STUDY ON BASALT FIBRE REINFORCED CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT WITH QUARRY DUST AND METAKAOLIN

  • Unique Paper ID: 150247
  • Volume: 7
  • Issue: 4
  • PageNo: 178-184
  • Abstract:
  • Concrete being the mostly used building material in the world out of its inherent strength and durability properties, yet it leads to the depletion of many natural resources like raw materials of cement lime stone and other constituents like aggregates. Apart from this, it is very weak in tension because of its brittle nature. To enable the concrete with tensile nature the concept of fibre reinforced concrete has been develop my adding a variety of natural or synthetic fibers to the concrete. Also the production of lot by-products from the industries like quarry dust, metakaolin, fly ash putting a lot of thrust on environment as the quarry dust is directly released into the environment and there were no proper disposal methods. Metakaolin a mineral admixture used in the concrete to get a highly compacted concrete. In the present study the mechanical properties of M25 grade of concrete with partial replacement of cement with quarry dust at 10%, 15%, 20%,25%, 30% and metakaolin at 2.5%, 5%, 7.5%,10% and 12.5%. After getting the optimum, basalt fibres added to the concrete at 0.5%, 1%, 1.5%, 2% , 2.5% and 3%. From the experimental results it is found that the replacement of quarry dust and the metakaolin improved the strength properties of concrete with an optimum of 25% and 10% respectively. Addition of basalt fibers has increased the split tensile and flexural strength considerably at 2% optimum. Durability studies using 5% HCl has also resulted in better performance compared with conventional concrete.
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