Question
Download Solution PDFAs per IS 456-2000, what is the maximum free water to cement ratio of an M20 grade of reinforced concrete under mild exposure conditions?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFAs per table 5 of IS 456 : 2000
Minimum cement content, Maximum water-cement ratio, and Minimum grade of concrete for different exposures with normal weight of aggregates of 20 mm Nominal
|
Reinforced concrete |
||
|
Minimum cement content kg/m3) |
Maximum free water-cement ratio |
Minimum grade of concrete |
|
300 |
0.55 |
M 20 |
|
300 |
0.50 |
M 25 |
|
320 |
0.45 |
M 30 |
|
340 |
0.45 |
M 35 |
|
360 |
0.40 |
M 40 |
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