“Study the strength properties of fiber reinforced concrete by using nano silica and ultra fine fly ash”
Keywords:
-Abstract
Fiber reinforced concrete (FRC) in various civil engineering applications is indisputable. In This study is aimed at
investigating the durability properties of Composite Fiber Reinforced Concrete. A 15% partial replacement of cement by
weight was done with ultra-fine fly ash. The addition of nano silica was in fractions of 0%, 1.5%, 3.0% and 4.5% by weight
of cement. For each of the above combinations, 1.0% steel and 0.25% polypropylene fibers, respectively, by volume of the
binders were added. A constant aggregate binder ratio of 2.0 and varying water binder ratios of 0.275, 0.300, and 0.325
were used in this investigation. By performing these tests in this study try to determined rate of absorption, permeability of
concrete, residual compressive strength and percentage of weight loss. And here at the end of this study try to find out
optimum percentage of ultra fine fly ash and nano silica to achieve desired durability, porosity and permeability.
