Chapter 10 Standard Test Procedures Tests For Bitumen & Bituminous Materials MAY 2001 Page 10.1 CHAPTER 10 TESTS FOR BITUMEN & BITUMINOUS MATERIALS 10.1 Bitumen Penetration Test 10.1.1 General requirements 10.1.1.1 Scope. VISCOSITY: Its defined as fluid property of the material as resistance to flow AIM: To determine the viscosity of bitumen by tar viscometer as per IS: 1206 (Part 2) APPARATUS: Tar viscometer, cup, valve, receiver, thermometer etc. Viscosity test of bitumen 1. TEST PROCEDURE PREPARATION OF SAMPLE: Pic-3 Viscosity test of bitumen. In case of high viscosity it will resist the compactive effort but mixture is heterogenous. Under the action of force, the fluid reflects higher resistance when the viscosity is high. 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. 1.1 This test method outlines a procedure for measuring the apparent viscosity of asphalt from 38 to 260°C [100 to 500°F] using a rotational viscometer and a temperature-controlled thermal chamber for maintaining the test temperature. Introduction to Viscosity and Rheology of Bituminous Materials The resistance of a liquid in flowing is defined as the viscosity of that fluid. This is a basic test for determining the grades of bitumen. 1.1 This test method specifies a procedure for the determination of the kinematic viscosity, ν, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. Now pour the heated sample of bitumen fully into a small container that we have taken in the apparatus required. Furol viscosity is a specific test which is only used for the measurement of liquid bituminous materials. The viscosity of liquid bitumen is measured by efflux visconnectors. VISCOSITY TEST FOR BITUMEN PRESENTED BY:AMRIT PANDIT ACEM/069/A/005 KATHMANDU, NEPAL 2. “What is the procedure for viscosity test of bitumen?” Nowadays, the most used viscosity method is the ASTM D4402, using the Rotational Viscometer. PROCEDURE: Preparation ofthe Sample - Heat the sample to a temperature not more than 60°C for the tars and… Penetration test of bitumen. The dynamic viscosity, η, can be obtained by multiplying the kinematic viscosity, ν, by the density, ρ, of the liquid. Some countries still use the ASTM E102, with the Saybolt-Furol viscometer. In effect, the test is an indirect determination of high temperature viscosity and low temperature stiffness. Take a sample of bitumen in a large container and heat up to 90 degree. But keep in mind it should be less than 90 degree. At low viscosity the bitumen binder simply lubricates the aggregate particles instead of providing a binder action. Heat the bitumen sample to a temperature not more than 90 C above its approx. Procedure for Penetration test of bitumen. softening point until is has become sufficiently fluid (like motor oil) to pour easily (Pic-1). The two factors that define the viscosity of bitumen are: Chemical Composition of Bitumen Structure of Bitumen […]

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