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Bitumen grades are 30-40,60-70, 80-100. what is mean by 30-
40
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Answer Posted / aditya richie
30-40 means bitumen having penetration between 30-40 mm .
The test done is called bituminous penetration test ,
machine used is vicats apparatus.
| Is This Answer Correct ? | 26 Yes | 29 No |
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