Fiber reinforced concrete and its types

What is fiber reinforced concrete and its types Plain cement concrete has very limited ductility, resistance to cracking and low tensile strength. Plain cement concrete may develop micro cracks even before load is applied. If uniformly distributed and closed spaced fibbers introduced in plain cement concrete many properties of plain concrete gets improved.Fiber reinforced concrete may … Read more

Standard deviation of concrete – sample calculation

How to calculate standard deviation of concrete Standard deviation of concrete is the root mean square deviation of all results. Standard deviation is generally denoted by s OR σ. Mathematical formula to calculate standard deviation is as per following Sample calculation of standard deviation of concrete cube results No of tests Test Result x Average … Read more