Concrete-structures Questions Set 21:
Modulus of elasticity of M25 grade concrete in MPa is
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Calculate the compressive strength of M20 grade concrete after 7 days.
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Reinforced of concrete beams and slabs of RCC structures are cast
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Which Indian Standard Code is referred for Earthquake Resistant design of Structures?
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When the slenderness ratio of a column is less than 3, it is considered a
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Which of the method is used for straightening of column
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A reinforced concrete structure has to be constructed along a sea coast. The minimum grade of concrete to be used as per IS: 456-2000 is
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A rectangular column section of 250 mm x 400 mm is reinforced with five steel bars of grade Fe 500, each of 20 mm diameter. Concrete mix is M30. The maximum axial load that can be applied on the column section with minimum eccentricity as per IS: 456-2000 using limit state method is:
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In a random sampling procedure for cube strength of concrete, one sample consists of X number of specimens. The specimens are tested at 28 days and average strength of these X specimens is considered as test result of the sample, provided the individual variation in the strength of specimens is not more than ±Y percent of the average strength. The values of X and Y as per IS: 456-2000 are
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A concrete beam of rectangular cross section of size 120 mm width and 200 mm depth is prestressed by a straight tendon to an effective force of 150 kN at an eccentricity of 20 mm (below the centroidal axis in the depth direction). The stresses at the top and bottom fibres of the section are
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