Flash and fire point test of bitumen pdf

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flash and fire point test of bitumen pdf

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Flash Point and Fire Point Tests of Bitumen

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Become VIP Member. Do you need to remove the ads? Flash and Fire point test is conducted on bitumen to know the safe mixing and application temperature values of particular bitumen grade. At higher temperatures bituminous materials leave out volatiles. These volatile vapors contains hydro carbons. So, they can catch the fire easily and will cause flash at one point and if it is further prone to heat the material may ignite and burn.

Catching fire is very dangerous during mixing of bitumen especially during its application. So, it is necessary to recognize the safe temperature values of bitumen grades for mixing as well as for applying.

The limited values of temperature can be determined by conducting Flash point and Fire point test on bitumen. The Flash point of a material is the lowest temperature at which vapor of substance quickly catches fire in the form of flash under definite conditions of the test. So, at this point fire will not last longer, just a flash will appear for a fraction of second.

The existence of highly volatile and inflammable materials in a particular grade of bitumen can be indicated by the Flash point. The fire point of a material is the lowest temperature at which material catches fire and burns under definite conditions of test.

The presence of combustible materials in a bituminous material can be indicated by the Fire point. Pensky-Martens closed cup tester contains testing cup, lid, stirrer device, shutter, and flame exposure device. Thermometer of specified range generally 0 o C to o C with sensitivity of 0.

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Exp # 6 Flash & Fire Point Test

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What is Flash point and Fire point of Bitumen? The flash point of a material is the lowest temperature at which the application of test flame causes the vapours.


Flash and Fire Point Test of Bitumen (Ref-IS: 1209)

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This test is done to determine the flash point and the fire point of asphaltic bitumen and fluxed native asphalt, cutback bitumen and blown type bitumen as per IS: — The principle behind this test is given below :. Flash Point — The flash point of a material is the lowest temperature at which the application of test flame causes the vapours from the material to momentarily catch fire in the form of a flash under specified conditions of the test. Fire Point — The fire point is the lowest temperature at which the application of test flame causes the material to ignite and burn at least for 5 seconds under specified conditions of the test. The sample should be just sufficient to fill the cup upto the mark given on it.

Flash point is the lowest temperature corrected to a barometric pressure of The material is deemed to have flashed when a large flame appears and instantaneously propagates itself over the surface of the specimen. Note: Occasionally, particularly near the actual flash point, the application of test flame will cause the blue halo or an enlarged flame; this is not a flash and should be ignored. It is the lowest temperature at which a specimen will sustain burning for 5 seconds. Asphalt Cement shall be oil asphalt or a mixture of refined liquid asphalt and refined solid asphalt, prepared from crude asphaltic petroleum.

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Flash point of bitumen is the temperature at which, its vapour will ignite temporarily during heating when a small flame is brought into contact with the vapour.

COMMENT 5

  • The flash point of a material is the lowest temperature at which the application of test flame causes the vapours from the material momentarily catch fire in the form of a flash under specified conditions of test. FernГЎn D. - 24.05.2021 at 18:11
  • Object: To determine the flash and fire point of bitumen by Pensky-Martens closed tester. Apparatus: a) Pensky-Martens closed tester consist of cup, lid, stirrer. Vinji14 - 26.05.2021 at 02:19
  • Strang linear algebra and learning from data pdf the c programming language pdf download Dalmiro C. - 27.05.2021 at 00:34
  • Minimum Fire point value should be = oC + 5oC. Print, PDF & Email. Share This Article. Facebook. Lea G. - 27.05.2021 at 23:28
  • Print Friendly, PDF & Email. This test is done to determine the flash point and the fire point of asphaltic bitumen and fluxed native asphalt, cutback bitumen and blown type bitumen as per IS: – The principle behind this test is given​. Kristin C. - 29.05.2021 at 17:00

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