Answer:
The answer is "24.5333334 MPa"
Explanation:
The flexure intensity of standard concrete is estimated approximately by increasing a pressure distribution to ([tex]\frac{2}{3}[/tex]).
The frequency of the pressure = 20 MPa
[tex]\ Flexure \ strength = 2.3 \times (16)\times \frac{2}{3} \ MPa\\\\[/tex]
[tex]= 2.3 \times \frac{32}{3} \ MPa\\\\= 2.3 \times 10.6666667 \ MPa\\\\= 24.5333334 \ MPa\\\\[/tex]