## How do you calculate specific gravity of bitumen?

The principle is that it is the ratio of mass of a given volume of bitumen to the mass of an equal volume of water, both taken at a recorded/specified temperature. Take the sample (half the volume of the specific gravity bottles). i) Clean, dry and weigh the specific gravity bottle along with the stopper (Weight ‘A’).

**Why bitumen is taken partially in pycnometer during specific gravity test?**

Specific gravity is also used in identifying the source of bitumen binder. Bitumen binder has specific gravity in the range of 0.97 to 1.02. In case bitumen contains mineral impurities the specific gravity will be higher. Thus it is possible for a quantitative extraction of mineral impurity in bitumen.

### Why specific gravity of bitumen is done?

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 at the same temperature.

**What is specific gravity of bituminous material?**

The specific gravity of pure bitumen is in the range of 0.97 to 1.02.

#### What is the density of bitumen?

1.01-1.05 g/cm 3

The density of bitumen is 1.01-1.05 g/cm 3 in the temperature range of 25°C to 85°C [63] . The medium-curing asphalt MC-30 liquid density is 0.947 g/cm 3 at 15.56°C. …

**What are the tests for bitumen?**

Tests on bitumen

- Penetration test.
- Ductility test.
- Softening point test.
- Specific gravity test.
- Viscosity test.
- Flash and Fire point test.
- Float test.
- Water content test.

## What is the unit of specific gravity?

It has the SI unit kg m-3 or kg/m3 and is an absolute quantity. Specific gravity is the ratio of a material’s density with that of water at 4 °C (where it is most dense and is taken to have the value 999.974 kg m-3). It is therefore a relative quantity with no units.

**What is the use of finding specific gravity?**

Specific gravity can be used to determine if an object will sink or float on water. The specific gravity of water is equal to one. If an object or liquid has a specific gravity greater than one, it will sink. If the specific gravity of an object or a liquid is less than one, it will float.

### How do you calculate bitumen density?

Formula for Calculation of Bitumen Quantity in Road: Calculate Volume of Asphalt = (Long * Width * Thickness) m^3. Find out the density of Asphalt (2330 or 2400 Kg/m^3) Calculate the quantity of Asphalt= ( Density* Volume)/1000. Find out how much bitumen in the mixture (3.5-5% in Asphalt)

**What is the density of bitumen in kg m3?**

The density of bitumen is 1.01-1.05 g/cm 3 in the temperature range of 25°C to 85°C [63] .

#### What is viscosity ratio of bitumen?

Bitumen is graded by viscosity at 60°C. For the purpose of this standard, the definitions given in IS 334 and the following shall apply. 3.1 Viscosity Ratio — It is the ratio of viscosity of residue from rolling thin film oven test to unaged bitumen, both measured at 60°C.

**How to determine specific gravity by pycnometer?**

A pycnometer or constant volume method has been found to be most reliable for the determination of specific gravity. Normally about 200 gm of the dry mass of the sample and a 500 cc. constant volume bottles are taken. 1. Pycnometer 2. Weighing Balance with a weighing accuracy of 1gm

## What is specific gravity test for bitumen?

The test is based on the principle that specific gravity is the ratio of the mass of a given volume of bitumen to the mass of an equal volume of water, both taken at a specified temperature. This test can also be used to determine the specific gravity of road tars, creosote and anthracene oils as per IS: 1202 – 1978.

**How to prepare a specific gravity bottle of bituminous material?**

Heat the bituminous material to the pouring consistency and approximately half fill the empty cleaned specific gravity bottle, by taking care to prevent the entry of air bubbles. 6. Weigh the specific gravity bottle with the material. 7. Fill the remaining space in a specific gravity bottle with distilled water at 27 degrees Celsius. 8.

### How to use a pycnometer?

Unscrew the cap and place about 200 g of oven dried soil in the Pycnometer. Screw the cap. Determine the mass (M 2 ). 4. Unscrew the cap and add sufficient amount of de-aired water to the Pycnometer so as to cover the soil. Screw on the cap. 5. Shake well the contents.