What is the ductility test of bitumen?
Ductility of bitumen is its property to elongate under traffic load without getting cracked in road construction works. Ductility test on bitumen measures the distance in centimeters to which it elongates before breaking.
How is ductility test done?
Principle of Ductility Test of Bitumen When a standard pulling force is applied to a bitumen specimen at a specific speed and specific temperature, the specimen will elongate before breaking. The limit up to which the specimen can elongate is recorded which is termed ductility of the bitumen sample.
What is ductility testing?
Ductility Testing Machine is defined as the distance in cms to which a standard briquette of bitumen can be stretched before the thread breaks. The briquette is stretched at a rate of 50 mm /min. /2.5 mm per minute at a temperature of 27ºC /0.5ºC.
What is the ductility value of bitumen?
The ductility of bitumen may vary from 5 to over 100 for different bitumen grades, but for satisfactory performance, it should not be less than 50. The ductility of bitumen is dependent upon pouring temperature, dimensions of the briquette, test temperature, the rate of pulling, etc.
What are the bitumen tests?
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.
How many bitumen tests are there?
Bitumen Standards Specification Tests The two principal tests used most frequently to characterize bitumens are penetration and softening point. These two tests are used to specify different grades of bitumen.
What is bitumen grade?
VG-20 bitumen is a grade of viscosity bitumen used in cold climatic and high altitude regions. This grade of bitumen is suitable for road construction in regions with 30 to 37 °C average temperature. In North India, vg20 is used for road construction in hot mix asphalt.
What are the apparatus used for ductility test?
Ductility Test Apparatus conducts ductility tests of bituminous materials to measure the elongation of a binder specimen before failure….
| Temperature Range | 5°—25°C ±0.5° (41°—77°F ±0.9°) |
|---|---|
| Electrical | 1000W Heater, 500W Cooler |
| Product Dimensions | 74 x 14 x 27in (1,880 x 360 x 680mm) WxDxH |
Is code for ductility test of bitumen?
Ductility Test of Bitumen (IS:1208-1978)
What is the test temperature of ductility test of bitumen?
b) Ductility test in bitumen is carried out at 27°C.
Is bitumen a code test?
Various tests are conducted on bitumen to assess its consistency, gradation, viscosity, temperature susceptibility, and safety….List of IS Codes Related to Bitumen Testing.
| Tests for Bitumen with IS codes | |
|---|---|
| Name of Test | IS code Number |
| Ductility test | IS: 1208-1978 |
| Softening Point test | IS: 1205-1978 |
How to calculate ductility?
Aluminum
What is the penetration test of bitumen?
The penetration test is used as a measure of consistency.
What do to with bitumen?
Oil sands. Naturally occurring crude bitumen impregnated in sedimentary rock is the prime feed stock for petroleum production from ” oil sands “,currently under development in Alberta,Canada.
How to know type of bitumen emulsion?
– Storage time of bitumen emulsion ranges from few days to 6 months depending upon the percentage of Bitumenadded while production. – Setting time may vary due to temperature, wind and type of emulsion. – Not a single type of bitumen emulsion can be used for all works it depends upon the aggregate type setting time nature of work etc.