Civil Engineering - Highway Engineering - Discussion

1. If water-cement ratio is increased, strength of concrete increases.
Incorrect – Increasing the water-cement ratio reduces strength due to excess water leading to more capillary pores.

2. If water-cement ratio is decreased, strength of concrete increases.

Correct – Less water (to an extent) means denser concrete and higher strength.

3. If water-cement ratio is increased, strength of concrete is not affected.
Incorrect – Strength is affected and generally decreases.

4. None of these.
Incorrect – Because statement 2 is correct, and others are not.

Correct Answer: "If water-cement ratio is increased, strength of concrete increases".

According to the water cement ratio theory, the strength of concrete depends entirely on the amount of water added to it.

w/c universally proportional strength of concrete. So w/c decreased, the strength of concrete increased.

Increased, strength of concrete is not affected upto a certain limit than it will decrease.

I think incorrect one is A.

W/c ratio is inversely proportional to strength.

Of course. The strength will increase if w/c ratio decrease.

A and C is incorrect and only B is correct.

W/c decrease the strength is increase.

I think both A and C are incorrect.

Both options A and C is incorrect.