Module 4 - Pink Rangers

What grade of asphalt cement is mostly used in tropical countries?

• 40/50

• 60/70

• 85/100

• 200/300

What does ASTM D2172 determine?

• Bitumen content in the asphalt mix

• Particle size distribution of aggregate

• Bulk specific gravity

• Molding

What does ASTM D2726 measure?

• Molding

• Asphalt cement viscosity

• Bulk specific gravity

• temperature susceptibility of asphalt

What is the primary purpose of ASTM D5444?

• Determining bitumen content

• Determining particle size distribution of aggregates

• Determining bulk specific gravity

• Testing water resistance of asphalt

Which of the following is a type of asphalt mixture?

• Hot Mix Asphalt

• Cold Mix Asphalt

• Both A and B

• None of the above

In Hot Mix Asphalt, what percentage of the mix is aggregate?

• 50%-60%

• 92%-95%

• 70%-80%

• 99%-100%

In Cold Mix Asphalt using emulsified asphalt, what is the typical asphalt content?

• 2%-4%

• 4.5%-7%

• 6%-10%

• 12%-15%

In the quantitative extraction of bitumen, what is the maximum time the sample should sit in the solvent?

• 15 minutes

• 30 minutes

• 45 minutes

• 60 minutes

During sieve analysis, the sample is dried at what temperature?

• 110°C ± 5

• 124°C ± 10

• 163°C ± 10

• 107 °C

What is the purpose of a wash sieve in aggregate analysis?

• Remove excess bitumen

• Determine particle size distribution

• Separate fine particles from coarse aggregates

• Check water absorption