Various laboratory tests on bitumen are conducted to check quality and different properties of bitumen for road or pavement construction works.
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DESIRABLE PROPERTIES OF ASPHALT MIXES FOR PAVEMENTS
Bituminous mixes (some times called asphalt mixes) are used in the surface layer of road and airfield pavements. The mix is composed usually of aggregate and asphalt cements. Some types of bituminous mixes are also used in base coarse. The ...
Types of Distress in Bituminous Pavements and their Causes
Bituminous pavements undergo various types of distress due to various reasons. The causes of these distresses and failures of bituminous pavements are discussed. Types of Distress in Bituminous Pavements and their Causes a) Cracking in Bituminous Pavements and their Causes ...
Marshall Stability Test – Flow Test on Bitumen
Mississippi State Highway Department formulated Marshall stability test – flow test on bitumen and is applicable to hot mix design of bitumen and aggregates of maximum size 2.5 cm. Bituminous concrete mix is commonly designed by Marshall Method. This test is ...
Flash and Fire Point Test on Bitumen
What is Flash and Fire point Test on Bitumen? Flash and Fire point test is conducted on bitumen to know the safe mixing and application temperature values of particular bitumen grade. Why it is Necessary? At higher temperatures bituminous materials ...
Specific Gravity of Bitumen
The specific gravity of semi-solid bituminous material, asphalt cements, and soft tar pitches shall be expressed as the ratio of the mass of a given volume of the material at 25 °C to that of an equal volume of water ...
VISCOSITY TEST FOR CUTBACK BITUMEN
AIM: To determine the viscosity of bitumen using tar viscometer APPARATUS: Tar viscometer, cup, valve, receiver, thermometer etc. THEORY: Viscosity is the inverse of fluidity. The degree of fluidity at the application temperature greatly influences the ability of bituminous material ...
Ring-Ball Test for Softening Point of Bitumen, Asphalt and Coal Tar
Ring and ball test is used to determine the softening point of bitumen, asphalt and coal tar. This test consists of two brass ring and two steel ball, using which the softening point of various bituminous materials are determined. Softening ...