The Brookfield and Thermocel rotational viscometer let the measurement of bitumen viscosity at varying temperatures. 220 Min. Furol viscosity is a specific test which is only used for the measurement of liquid bituminous materials. 350 Min. Viscosity Tests on Bitumen Asphalt . Influence of Temperature on The Viscosity of Bitumen Viscosity test of bitumen 1. At low viscosity the bitumen binder simply lubricates the aggregate particles instead of providing a binder action. 3200 Kinematic Viscosity at 135°C, cSt 1206 (Part 3) Min. Objective • To become familiar with the term viscosity, its influence and effects, its techniques and application in the field of engineering especially for design of the road pavements. 800 Min. 300 Min. BITUMEN (VISCOSITY GRADES) TEST BIS METHOD SPECIFICATION VG10 VG20 VG30 VG40 Absolute Viscosity at 60°C, Poises 1206 (Part 2) Min. Now, the most practical means to measure the viscosity of bitumen is with the help of rotational viscometer test (ASTM D4402 -02). 220 Min. The bitumen viscosity is determined by viscometer as per IS code 1206. In case of high viscosity it will resist the compactive effort but mixture is heterogenous. Viscosity grade bitumen has a thermoplastic feature which causes the material to soften at high temperatures and to harden at lower temperatures. 250 Min. 220 Min. 1600 Min. VISCOSITY TEST FOR BITUMEN PRESENTED BY:AMRIT PANDIT ACEM/069/A/005 KATHMANDU, NEPAL 2. Viscosity Test. The viscosity of liquid bitumen is measured by efflux visconnectors. The lower viscosity of bitumen mixed with aggregate makes it as smooth. 2400 Min. The ability of bitumen spreading over the pavement area is known as the fluidity of bitumen. Both the viscosity test and the penetration test measure the consistency of an asphalt at some specified temperatures and are used to designate grades of asphalts. 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