The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures
The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

0.573 xu

0.416 xu

0.367 xu

0.446 xu

0.573 xu

0.416 xu

0.367 xu

0.446 xu

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Concrete Technology and Design of Concrete Structures
For a reinforced concrete section, the shape of shear stress diagram is

wholly parabolic

rectangular above neutral axis and parabolic below neutral axis

wholly rectangular

parabolic above neutral axis and rectangular below neutral axis

wholly parabolic

rectangular above neutral axis and parabolic below neutral axis

wholly rectangular

parabolic above neutral axis and rectangular below neutral axis

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Concrete Technology and Design of Concrete Structures
Increase in the moisture content in concrete

does not change the strength

reduces the strength

increases the strength

All of these

does not change the strength

reduces the strength

increases the strength

All of these

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Concrete Technology and Design of Concrete Structures
For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be

0.75 - 0.80

0.85 - 0.92

Above 0.92

0.75 - 0.80

0.85 - 0.92

Above 0.92

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Concrete Technology and Design of Concrete Structures
To minimize the effect of differential settlement, the area of a footing should be designed for

Live load + fraction of dead load

Dead load + live load

Dead load only

Dead load + fraction of live load

Live load + fraction of dead load

Dead load + live load

Dead load only

Dead load + fraction of live load

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Concrete Technology and Design of Concrete Structures
Admixtures which cause early setting, and hardening of concrete are called

accelerators

workability admixtures

air entraining agents

retarders

accelerators

workability admixtures

air entraining agents

retarders

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Concrete Technology and Design of Concrete Structures

Concrete Technology and Design of Concrete Structures The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures For a reinforced concrete section, the shape of shear stress diagram is

Concrete Technology and Design of Concrete Structures Increase in the moisture content in concrete

Concrete Technology and Design of Concrete Structures For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be

Concrete Technology and Design of Concrete Structures To minimize the effect of differential settlement, the area of a footing should be designed for

Concrete Technology and Design of Concrete Structures Admixtures which cause early setting, and hardening of concrete are called

Concrete Technology and Design of Concrete Structures
The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (where xu is the depth of neutral axis at the limit state of collapse)

Concrete Technology and Design of Concrete Structures
For a reinforced concrete section, the shape of shear stress diagram is

Concrete Technology and Design of Concrete Structures
Increase in the moisture content in concrete

Concrete Technology and Design of Concrete Structures
For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be

Concrete Technology and Design of Concrete Structures
To minimize the effect of differential settlement, the area of a footing should be designed for

Concrete Technology and Design of Concrete Structures
Admixtures which cause early setting, and hardening of concrete are called