Table of Contents
What is the purpose of softening point of bitumen?
The softening point helps to determine the temperature up to which bitumen can be heated for different road use applications.
What is the purpose of softening point test?
The determination of softening point helps to know the temperature up to which a bituminous binder should be heated for various road use applications. Softening point is determined by ring and ball apparatus.
Why bitumen test is done?
Various tests are conducted on bitumen to assess its consistency, gradation, viscosity, temperature susceptibility, and safety.
Why ductility test of bitumen is important?
Significance of Ductility Test of Bitumen: The ductility test of bitumen sample is one of the important tests of bitumen to be conducted before road construction. Ductility measures the adhesive property of the bitumen too along with its elasticity.
What is the importance of softening point in pavement construction?
How can the softening point of bitumen be increased?
Introduction of polymers significantly increases softening point of bitumen. Softening point increase with increasing Polydom content is linear and at 3 \% it is up to 10 °C and at 4 \% – 12 °C.
How bitumen is tested for ductility?
Melt the bitumen to be tested to a temperature of 75 to 1000C above its approximate softening point till it becomes fluid. Assemble the mould on a brass plate and coated on all the sides with a mixture glycerin and dextrin of equal parts to avoid sticking of the material.
Is code for softening point of bitumen?
SOFTENING POINT OF BITUMEN (IS:1205:1978)
What are the factors that influence the result of the softening point test?
Following are the main factors that affect the softening point of bitumen; i)- Rate of heating….PROCEDURE:
- Freshly boiled distilled water for softening points between 30 and 80°C; use Thermometer 15C or 15F.
- USP glycerin for softening points above 80°C and up to 157°C; use Thermometer 16C or 16F.
Is bitumen a code test?
Based on the revised methods of test in IS 1201 to IS 1220 : 1978 ‘Methods for testing tar and bituminous materials (first revision) and the additional data that had become available, second revision was formulated in 1992.
What is extraction testing?
The overall intent of the extraction test is quite simple: to ensure that any materials contacting drinking water do not leach out harmful contaminants back into the water. After a set amount of time, this water is removed and then analyzed to see what contaminants have now been introduced.