Consider the following statements as describing the Rheological behaviour of fresh concrete:
1. Newtonian
2. Non-Newtonian
3. Ratio of shear stress to shear rate is constant
4. Ratio of shear stress to shear rate depends upon the shear rate
Which of these statements are correct?
1
1, 2, 3 and 4
2
2 and 4 only
3
1, 2 and 4 only
4
2, 3 and 4 only