Which of the following statements is INCORRECT?
1
Graphically, the relation between the strength of concrete and the water-cement ratio is approximately cubic.
2
The lower the water-cement ratio is, the higher will be the strength of concrete.
3
Lower water-cement ratio is required when the concrete mix is mechanically compacted to achieve higher strength as compared to the hand-compacted concrete mix with higher water-cement ratio.
4
Lower water-cement ratio leads to lower workability.