Consider the following statements :The effect of sea water on hardened concrete is to1. increase its strength2. reduce its strength 3. retard setting 4. decrease its durability. Of these statements :

Consider the following statements :The effect of sea water on hardened

1.	Consider the following statements :The effect of sea water on hardened concrete is to1. increase its strength2. reduce its strength 3. retard setting 4. decrease its durability. Of these statements :
A.	1 and 3 are correct
B.	2 and 3 are correct
C.	2 and 4 are correct
D.	1 and 4 are correct
Answer» D. 1 and 4 are correct

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Consider the following statements :The effect of sea water on hardened concrete is to1. increase its strength2. reduce its strength 3. retard setting 4. decrease its durability. Of these statements :

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