Q7. | Workability of concrete can be improved by addition : |
Q8. | Split strength of concrete can be determined by : |
Q9. | Strength of concrete increases with : |
Q10. | Strength of concrete increases with : |
Q11. | Approx ratio of the strength of the cement concrete of 7 days to that of 28 days : |
Q12. | Approximate ratio of the direct tensile strength to direct compressive strength test is : |