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What is the minimum grade of concrete in sea-water or which is exposed directly along the sea-coast in the case of plain concrete as per IS code 456-2000?

What is the minimum grade of concrete in sea-water or which is exposed directly along the sea-coast in the case of plain concrete as per IS code 456-2000? Correct Answer M20

Concrete in Sea-water (as per IS 456: 2000)

Concrete in sea-water or exposed directly along the sea-coast shall be at least M 20 Grade in the case of plain concrete and M 30 in case of reinforced concrete. The use of slag or pozzolana cement is advantageous under such conditions.

Exposure

Minimum grade of

 Plain Concrete

Minimum grade of

reinforced concrete

Mild

-

M20

Moderate

M15

M25

Severe

M20

M30

Very severe

M20

M35

Extreme

M25

M40

Related Questions

Regarding the new MSP of Paddy declared by the Government in July 2018, which of the following statements are correct? 1. MSP of Paddy (Common Grade) has been increased by Rs. 200/- per quintal and of Grade A variety by Rs. 160/- per quintal. 2. MSP of Paddy (Common Grade) has been increased by Rs. 160/- per quintal and of Grade A variety by Rs. 200/- per quintal. 3. The new MSP of Paddy (Common Grade) and Grade A variety is Rs. 1750/- per quintal. 4. The new MSP of Paddy (Common Grade) is Rs. 1750/- per quintal and of Grade A is Rs. 1770/- per quintal.
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What will be contained in Msg if grade entered by user is 'd'?
grade=grade.Text.ToUpperIf grade=="A" Msg ="Excellent"ElseIf grade=="B" Msg="Very Good"ElseIf grade=="C" Msg="Good"ElseIf grade=="D" Msg="Fair"Else Msg="Fail"EndIf
Of the 360 students who sat for Class X Board exams, 10% students scored A grade, 20% students scored B grade, 30% students scored C grade and 40% scored D grade. From the given pie chart, find the total number of students who scored Grade A and Grade B.
What will be contained in Msg if grade entered by user is 'd'?
If grade=="A" Msg ="Excellent"ElseIf grade=="B" Msg="Very Good"ElseIf grade=="C" Msg="Good"ElseIf grade=="D" Msg="Fair"Else Msg="Fail"EndIf
In case of reinforced concrete, what is the minimum grade of concrete that should be used in sea water or when exposed directly along the sea-coast?
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4. A minimum rate of remuneration to apply in the case of employees employed on piece work for the purpose of securing to such employees a minimum rate of wages on a time work basis is overtime rate.
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