In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on i) bottom face near counterfort ii) top face near counterfort iii) bottom face near centre of span iv) top face near centre of span The correct answer is

Concrete Technology and Design of Concrete Structures
In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on
i) bottom face near counterfort
ii) top face near counterfort
iii) bottom face near centre of span
iv) top face near centre of span
The correct answer is

only (ii)

only (i)

both (ii) and (iii)

both (i) and (iv)

only (ii)

only (i)

both (ii) and (iii)

both (i) and (iv)

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Concrete Technology and Design of Concrete Structures
The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called

bleeding

creep

bulking

segregation

bleeding

creep

bulking

segregation

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Concrete Technology and Design of Concrete Structures
For walls, columns and vertical faces of all structural members, the form work is generally removed after

3 days

7 days

14 days

24 to 48 hours

3 days

7 days

14 days

24 to 48 hours

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Concrete Technology and Design of Concrete Structures
The strength of concrete after one year as compared to 28 days strength is about

20 to 25% more

10 to 15% more

25 to 50% more

15 to 20% more

20 to 25% more

10 to 15% more

25 to 50% more

15 to 20% more

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Concrete Technology and Design of Concrete Structures
Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is

(i) and (iv)

(i) and (iii)

(ii) and (iv)

(ii) and (iii)

(i) and (iv)

(i) and (iii)

(ii) and (iv)

(ii) and (iii)

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Concrete Technology and Design of Concrete Structures
The minimum cover to the ties or spirals should not be less than

15 mm

25 mm

50mm

20 mm

15 mm

25 mm

50mm

20 mm

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called

Concrete Technology and Design of Concrete Structures For walls, columns and vertical faces of all structural members, the form work is generally removed after

Concrete Technology and Design of Concrete Structures The strength of concrete after one year as compared to 28 days strength is about

Concrete Technology and Design of Concrete Structures The minimum cover to the ties or spirals should not be less than

Concrete Technology and Design of Concrete Structures
The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called

Concrete Technology and Design of Concrete Structures
For walls, columns and vertical faces of all structural members, the form work is generally removed after

Concrete Technology and Design of Concrete Structures
The strength of concrete after one year as compared to 28 days strength is about

Concrete Technology and Design of Concrete Structures
The minimum cover to the ties or spirals should not be less than