Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40

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Bitumen grades are 30-40,60-70, 80-100. what is mean by 30-
40

Question Posted / ash2meet

10 Answers
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Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / ujjawal u. d.

the penetration caused by standard Condition i.e.
Standard Weight= 100 gm
Standard temp. = 25 Degree C.
Standard penetration time = 5 Seconds
Unis = 10th of mm to show the results and avoiding Errors
e.g. if the value is 30/40, the 30/40 is the bitumen
penetration value (tested in standard condition) lies
between 3 to 4 mm.

Is This Answer Correct ?

109 Yes

7 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / nilesh ghadge

IT MEANS IT HAVING THE PENETRATION VALUE BETWEEN 30 TO 40

Is This Answer Correct ?

141 Yes

47 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / tawalbeh

yes, and the unit is (0.1mm) ..
e.g: 80 = 8mm = 0.8cm

Is This Answer Correct ?

98 Yes

13 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / venky

the needle denotes in 1/10th 's ofmm....so it mean 3mm to 4 mm

Is This Answer Correct ?

50 Yes

7 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / anwar_eng04

the rage 30-40 means the bitumen has having grades between
these two valus and and it is determined by average
peneteration value of the test which conducted by the
instrument called penetrometer.

Is This Answer Correct ?

37 Yes

5 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / hossain

Penetration value (tested in standard condition) lies
between 3 to 4 mm.

Is This Answer Correct ?

11 Yes

4 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / abir kumar ghosh

30-40 means bitumen having penetration of a needle between
30-40 mm with standar weight on it at 25 deg Centigrade.
Lower the penetration is higher the viscosity.
The test is done with the apratus called Vicats apparatus.

Is This Answer Correct ?

28 Yes

25 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / abir kumar ghosh

30-40 means bitumen having penetration of needle (with
standard weight)between 30-40 mm in 5 seconds at 25 deg
cent.
The test done with a apratus called Vicats apparatus.

Is This Answer Correct ?

26 Yes

23 No

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / 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

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40..

Answer / bhuwan

penetraion is 30 t0 40 mm by 25 deg tem