Penetration test on bitumen sample

It measures the hardness or softness of bitumen by measuring the depth in tenths of a millimeter to which a standard loaded needle will penetrate vertically in 5 seconds. Penetration test is used to measure the consistency of bitumen, so that they can be classified into standard grades. Greater value of penetration indicates softer consistency. Gen...

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Ductility test of bitumen

This test is done to determine the ductility of distillation residue of cutback bitumen, blown type bitumen and other bituminous products. The principle is: The ductility of a bituminous material is measured by the distance in cm to which it will elongate before breaking when a standard briquette specimen of the material is pulled apart at a specif...

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Flash 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 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 bu...

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Specific viscosity of liquid asphalts using engler viscometer

Engler specific viscosity is the ratio of time of flow for 50 ml of material in seconds using an Engler viscometer at a selected temperature to the time of flow, in second, for an equal volume of water at 25°C.The usual temperatures for determination of specific viscosity for tar materials are 25°C, 40°C, 50°C, and 100°C, and generally the temperat...

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Viscosity of Bitumen (Tar)

The viscosity of a petroleum cut-back or fluxed bituminous binder is determined using an efflux viscometer known as the Standard Tar Viscometer (STV) which determines the time of efflux of a 50 ml sample through a 4 mm or a 10 mm orifice at a specified temperature.Whatever temperatures or orifice diameters used, the efflux time shall not exceed 500...

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Saybolt Viscosity of cutback

This test method covers the empirical procedures for determining the Saybolt Universal or Saybolt Furol viscosities of petroleum products at specified temperatures between 21 and 99°C. The efflux time in seconds of 60 mL of sample, flowing through a calibrated orifice, is measured under carefully controlled conditions. This time is corrected by an...

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Specific gravity of bitumen

This test is done to determine the specific gravity of semi-solid bitumen road tars, creosote and anthracite oil. 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.

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Extraction of bitumen tedt

The method described is a procedure used to determine the asphalt content of asphalt aggregate mixtures. The asphalt content of asphalt-aggregate mixtures is used for product acceptance, quality assurance, process quality control and research activities.

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Marshall test

The test is applicable to hot mix designs using bitumen and aggregates up to a maximum size of 25mm. In this method, the resistance to plastic deformation of cylindrical specimen of bituminous mixture is measured when the same is loaded at periphery at 5 cm per min. This test procedure is used in designing and evaluating bituminous paving mixes. Th...

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