Objective: Determination of viscosity of bitumen using tar viscometer Apparatus Tar viscometer Cup Valve Receiver Thermometer etc. Theory In simple words, viscosity is the opposite of fluidity. The extent of fluidity at the utilization temperature significantly impacts the capacity of bituminous material to extend, infiltrate into voids and additionally coat the total and therefore move […]
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Objective: Assessment of specific gravity of a specified sample of bitumen Apparatus Pycnometer and balance Theory Specific gravity of bituminous material is known as the proportion of mass of specified capacity of substance to the equivalent volume of water, temperature of both of them approximating 27 degree Celsius. Procedure The specific gravity bottle is first […]
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Objective (i) To compute the ductility of a specific specimen of bitumen (ii) To assess the suitability of bitumen for its application in road construction. Apparatus The apparatus as per IS: 1208-1978 comprises of Briquette mould: It is created out of brass. Circular holes are made at ends known as clips to grasp the stationary […]
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Bituminous road Construction steps are explained below: 1. Planning of the current base course layer The current surface is set up by evacuating the pot gaps or rust assuming any. The inconsistencies are filled in with premix chippings no less than seven days before laying surface course. On the off chance that the current asphalt […]
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Objective: To assert consistency of bituminous material To evaluate aptness of bitumen for its usage under varying climatic conditions and construction types Apparatus: Container: A metallic dish of cylindrical shape with a flat base and diameter of 55m and depth of 35mm. In case the penetration is of order 225 or more, dish of 70mm […]
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