Podcast
Questions and Answers
What happens to the flow value as the asphalt content increases?
What happens to the flow value as the asphalt content increases?
- It remains constant
- It decreases monotonically
- It decreases and then increases
- It increases and then decreases (correct)
What is the minimum ductility value of asphalt type (40-50) as per the Iraqi standard?
What is the minimum ductility value of asphalt type (40-50) as per the Iraqi standard?
- 100 cm (correct)
- 120 cm
- 90 cm
- 80 cm
What is the purpose of the CBR test?
What is the purpose of the CBR test?
- To determine the flow value of asphalt
- To determine the ductility of asphalt
- To determine the strength of subgrade (correct)
- To determine the porosity of aggregate
What is the flash point temperature of paving grades of asphalt as per the Iraqi standard?
What is the flash point temperature of paving grades of asphalt as per the Iraqi standard?
What is the maximum wear value of aggregate to be used in asphalt pavement as per the Iraqi standard?
What is the maximum wear value of aggregate to be used in asphalt pavement as per the Iraqi standard?
What is the purpose of the penetration test?
What is the purpose of the penetration test?
What is the standard load applied to the sample when the needle is immersed in the penetration test at 40°C?
What is the standard load applied to the sample when the needle is immersed in the penetration test at 40°C?
What is the temperature of the oven in the loss on heating test?
What is the temperature of the oven in the loss on heating test?
What is the percentage of degradation for a sample of coarse aggregate if the aggregate weight after testing and sieving is 3160 gm?
What is the percentage of degradation for a sample of coarse aggregate if the aggregate weight after testing and sieving is 3160 gm?
Which of the following grades of bitumen is harder?
Which of the following grades of bitumen is harder?
What is the temperature of the aggregates used for mixing in hot mix type bituminous construction?
What is the temperature of the aggregates used for mixing in hot mix type bituminous construction?
What is the sieve size that coarse aggregate is mainly retained on?
What is the sieve size that coarse aggregate is mainly retained on?
