CONCRETE TECHNOLOGY AND DESIGN OF CONCRETE STRUCTURES QUIZ

(i) and (ii)

only (i)

(i), (ii) and (iii)

(i) and (iii)

20%

10%

15%

5%

Lean mixes bleed more as compared to rich ones.

Bleeding can be increased by addition of calcium chloride.

None of these

Bleeding can be minimized by adding pozzuolana finer aggregate.

is always greater than 1

can be more than 1

can be less than 1

is always less than 1

70%

60%

40%

50%

greater than 2

between 1 and 1.5

between 1.5 and 2.0

less than 1

7 days

3 days

14 days

24 to 48 hours

200kN/mm²

2xl06N/cm²

200 kN/cm²

20 kN/cm²

8 mm

12 mm

16 mm

6 mm

both (i) and (iv)

only (i)

only (ii)

both (ii) and (iii)