Specific Gravity Bottle

It may be defined as the binder; density property is of great use. In most cases bitumen is weighed, but when used with aggregates, the bitumen is converted to volume using density values. The density of bitumen is greatly influenced by its chemical composition. Increase in aromatic type mineral impurities cause an increase in specific gravity. The specific gravity of bitumen is defined as the ratio of mass of given volume of bitumen of known content to the mass of equal volume of water at 27^oC. The specific gravity can be measured using either pycnometer or preparing a cube specimen of bitumen in semi solid or solid state. The specific gravity of bitumen varies from 0.97 to 1.02.

• First and foremost job that is to be done is wash the density bottle and dry it in an oven at 105^oC to 100^oC. Cool it in the desiccators.
• Specific gravity by Pycnometer
• Specific gravity by density bottle
• Correct results
• Longer functional life
• Easy to operate

• The ordinary capillary type specific gravity bottle with a neck of 6mm diameter.
• The wide mouthed capillary type specific gravity bottle with a neck of 25mm diameter.
• The ordinary specific gravity bottle is used for materials which remain absolutely fluid at 27^oC while the wide mouth capillary type is used for materials which remain semisolid of high viscous at 27^oC.

• Specific gravity- glass bottle of 50 ml capacity with a fitted glass stopper
• Stopper glass with small hole through center to permit emission of air and water
• Oven capable of 1050°C
• Thermometer
• Funnel
• Sand bath for heating