Bitumen (Discussion)
Bitumen (Discussion)
Bitumen (Discussion)
7. The objective for softening point test is to determine the softening point of bitumen
using ring and ball apparatus.
8. From result of the experiment, the softening point for grade 80/100 bitumen is in 21
minutes and 40 seconds at 45C and for the grade 60/70 bitumen is in 22 minutes
and 57 seconds at 49C. Bitumen grade 80/100 is more soft than bitumen grade
60/70 because it have more quality and suitable use for construction of road.
9. The experiment result is less accurate due to error during conducting the experiment.
The beaker contain sample of bitumen has been heated and stirred with inconstant
heat and speed. Besides, the error also occurs when reading temperature of water
from thermometer and gives less accurate result. The sample that are not in suitable
condition when the experiment is conduct.
10. The result can be more accurate through eye is level to the thermometer during
reading of temperature, make sure that sample is in good condition before start
conduct the experiment and the sample need to be stir and heat with constant
temperature and speed to avoid any effect on time and temperature for sample.