A Study on Fire Resistance Property of HSC Using Silica fume and Metakaolin with Polypropylene fiber

E. Venkateshwaran, Dr.G. Balamurugan
2016 International Journal of Advanced Research  
Concrete is a composite material made of cement, coarse aggregate, and fine aggregate and water. Recently High Strength Concrete (HSC) is being widely used in many applications. Concrete having compressive strength more than 60MPa is termed as HSC. It can be achieved by increasing the cement content and reducing water content by the addition of super plasticizers. HSC are brittle in nature and they are ready for plastic shrinkage in earlier stage. In order to reduce the brittleness and
more » ... leness and shrinkage effect fibers are used in HSC. Incorporation of polypropylene fiber in High Strength Concrete (HSC), reduced the spalling and cracking. This was achieved via melting and consequently, creating added escape routes for vapour pressure. In this work an attempt has been made to study the effect of exposure to elevated temperature upon high strength fiber reinforced concrete. The percentage of fiber considered for this investigations are 0.2%, 0.4% of volume of concrete mix at 100 0 C, 200 0 C, 300 0 C, 400 0 C for sustained duration of 24hrs of exposure. The tests have been carried out as per recommended procedures of relevant codes and previous investigations. The results are compared and conclusions are made. Copy Right, IJAR, 2016,. All rights reserved.
doi:10.21474/ijar01/284 fatcat:z47cxvtdwzexpjpmpobecjwegu