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HIGHWAY ENGINEERING BITUMEN FLASH AND FIRE POINT TEST (TEST ON BITUMEN) :

HIGHWAY ENGINEERING BITUMEN FLASH AND FIRE POINT TEST (TEST ON BITUMEN) Prepared by Er.C.MAKENDRAN M.E.,( Ph.D )

FLASH AND FIRE POINT TEST:

FLASH AND FIRE POINT TEST Aim : To determine the flash and dire point of a given bituminous material.  Apparatus required : Pensky -martens closed cup tester, Thermometer H eating Source F lame Exposure

FLASH AND FIRE POINT TEST (OLD APPARATUS):

FLASH AND FIRE POINT TEST (OLD APPARATUS)

Procedure: :

Procedure : All parts of the cup are cleaned and dried thoroughly before the test is started. The material is filled in the cup up to a mark. The lid is placed to close the cup in a closed system. All accessories including thermometer of the specified range are suitably fixed.

FLASH AND FIRE POINT TEST:

FLASH AND FIRE POINT TEST The bitumen sample is then heated. The test flame is lit and adjusted in such a way that the size of a bed is of 4mm diameter. The heating of sample is done at a rate of 5 o to 6 o C per minute. During heating the sample the stirring is done at a rate of approximately 60 revolutions per minute.

FLASH AND FIRE POINT TEST:

FLASH AND FIRE POINT TEST The test flame is applied at intervals depending upon the expected flash and fire points and corresponding temperatures at which the material shows the sign of flash and fire are noted.

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