A concrete cylinder has a diameter of 4 and a length of 8 Th

A concrete cylinder has a diameter of 4” and a length of 8”. The cylinder is tested in a compression testing machine and the failure load is 85720 lb, what is the compressive strength of the concrete? Enter a numeric value in psi

Solution

Compressive strength = failure load/ Area

Area = pi*d²/4

= 85720/(3.14*4*4/4)

=6824.8 psi