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# Determining Specific Gravity of Bitumen

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This test is done to determine the specific gravity of semi-solid bitumen road tars, creosote and anthracene oil as per IS: 1202 – 1978. The principle is that it is the ratio of mass of a given volume of bitumen to the mass of an equal volume of water, both taken at a recorded/specified temperature.
The apparatus needed to determine specific gravity of bitumen is

i) Specific gravity bottles of 50ml capacity
ii) Water bath
iii) Bath thermometer – Range 0 to 44oC, Graduation 0.2oC
Take the sample (half the volume of the specific gravity bottles).

Procedure to determine specific gravity of bitumen
i) Clean, dry and weigh the specific gravity bottle along with the stopper (Weight ‘A’).

ii) Fill the specific gravity bottle with freshly boiled distilled water and insert the stopper firmly. Keep it in the water bath having a temperature of 27.0 + 1oC for not less than half an hour and weigh it (Weight ‘B’).

iii) Weigh the specific gravity bottle about half-filled with the material (Weight ‘C’).

iv) Weigh the specific gravity bottle about half-filled with the material and the other half with distilled water (Weight ‘D’).

v) Weigh the specific gravity bottle completely filled with the material (Weight ‘E’).

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REPORTING OF RESULTS
i) Specific gravity (Solids and semi-solids) = (C-A )/[ ( B-A) – (D-C)]
ii) Specific gravity (Liquids) = (E-A)/(B-A)
The average of the two results should be reported.

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Comments
• Atul D Gautam September 9, 2009 at 9:54 am

Kindly tell me in Detail the whole method of determination of
Fineness of cement by blaines air permeability method.
(With calibration of Instrument )as early as possible.

• Eng Dilawar khan November 30, 2009 at 2:20 pm

hi dear sir
i am a new civil engineer and i need a guide book for design of road structures
if u help me it will be your pleasent

• sangith balu March 5, 2010 at 10:38 am

sir i am fresh civil Engineer i want all test of highway road

• shriram b. dangre August 14, 2010 at 8:02 am

sir, this type question asked in competitive examination ,like mahagenco,i need answer that question not a procedure.

thanking you.

shriram dangre

B.E.civil

• khushboo... October 12, 2010 at 10:08 pm

can i exactly know d use of dis test

• apurv January 19, 2012 at 4:37 am

The application of this test is u can find out viscosity through which u can this knowledge is required while construction of highway

• eng zana January 9, 2011 at 5:44 am

hello dear ,iam zana from iraq .can u send me the tests of highway road ?.thank u for sending ,i wait……

• Muhammad Wazir November 16, 2011 at 11:13 pm

dear sir,
plz tell the max. and min. value of all test the bitumen material like
ductility,softing point ,viscosity,flash and fire point,float,water content ,loss on heat,spacific gravity
thanks for anticipation
Muhammad wazir
lab technician (KRC)

• apurv January 19, 2012 at 4:34 am

Sir can u please tell me the application of the test and of penetration test
thanks is advance

• Hafizullah Noori April 26, 2012 at 2:16 am

Dear Sir,
I am a new graduated Civil Engineer,and I need for guidance for the bitumenuos materails testing, and I waiting for your response.

Thanks,

• Maka July 20, 2012 at 5:11 am

Respectd Sir, i wanted to know the aim and use of the following test of bitumen. i.e, Ductility test, Solubility test, Volatization test, softening point test, flush & fire point test.

• nikhil ranjan pal October 19, 2012 at 2:21 pm

Sir, I want to know,how to determine the individual specific gravity of stone materials

• Rajendra Lohar May 22, 2013 at 3:25 am

What are the field tests for bitumen tests with all standard results

• Shrikant November 23, 2013 at 11:32 pm

If specific gravity of bitumen is less than one, why doesn’t it float in water????

• Maryam basil December 4, 2014 at 7:39 am

Sir , can you give me an information about specific gravity test of bitumen and it should be between what range ??? And what is its property if it was not within the range ??

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