The Centrifuge Extractors are used for determination of bitumen percentage in hot mixed paving mixtures and pavement samples. The mix is added with a solvent and dissolved bitumen is removed by centrifugal action. The Extractors are available in two versions, Hand operated and motorised electrically driven.
The Centrifuge Extractors are used for determination of bitumen percentage in hot mixed paving mixtures and pavement samples. The mix is added with a solvent and dissolved bitumen is removed by centrifugal action. The Extractors are available in two versions, Hand operated and motorized electrically driven.
It may be defined as the hardness softness of the bitumen by measuring the depth in tenth of a millimeter to which standard loaded needle will penetrate vertically in five minutes the penetration of bituminous material is the distance in tenth of a millimetre that a standard needle will penetrate vertically into a sample of the material under standard conditions…
This method is used for determining the ductility of bituminous materials by measuring the elongation before breaking when two ends of a briquette specimen are pulled apart at a speed of 50mm/min + 2.5mm/min at temperature of 270C + 0.50C.
This is widely used for determination for closed cup Flash Point of Fuel Oil, cut back asphalts, other viscous material and suspension of solids having a flash point above 490C (1200F).
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 bitumenous 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. The…
This apparatus is meant for determination of softening point of bituminous materials. Softening point is that temperature at which the specimen under test becomes soft enough to allow a steel ball of specific dimension to fall a required distance under test condition. The apparatus consists of Glass beaker of heat resistant glass having internal diameter of 8.5 cm X 12…
Viscosity is the property of the fluid by which it resist flow due to internal friction. Used for determining viscosity of cut - back bitumen and road oil. Viscosity is measured by determining the time taken by 50 cc of the material to flow from a cup through a specified orifice.
