Asphalt Binders Exam Questions Fully Solved Latest Update 2025 Graded A+
Asphalt Cement - Answers Superior binder for pavement applications, blend of hydrocarbons.
Asphalt Cutback - Answers Asphalt cement dissolved in lighter molecular hydrocarbon solvent.
Asphalt Emulsion - Answers Asphalt dissolved in water, contains asphalt cement, water, and emulsifying
agent.
Harder Asphalt - Answers Shift towards heavier molecular weight hydrocarbons, viscous at room
temperature.
Semi-Solid Asphalt - Answers Cannot be applied at room temperature, needs heating.
Liquid Asphalt - Answers Cutbacks and emulsions that can be used without heating.
Cutback Disadvantages - Answers High petroleum costs, hazardous material, environmentally
unacceptable.
Emulsion Components - Answers 60%-70% asphalt cement, 30%-40% water, emulsifying agent like soap.
Emulsifying Agent - Answers Contains head portion with electrostatic charge, tail portion with high
asphalt affinity.
Breaking or Setting - Answers Separation between asphalt residue and water in emulsions.
Uses of Asphalt Cements - Answers Pavement construction, roof sealing, hot-mix asphalt production.
Fog Seal - Answers Surface layer sealant for asphalt pavement.
Tack Coat - Answers Adhesive layer between asphalt layers or surfaces.
Chip Seal - Answers Surface treatment using asphalt binder and aggregate.
Microsurfacing - Answers Thin layer of asphalt mixture for pavement maintenance.
Temperature Susceptibility - Answers Asphalt hardens at low temps, softens at high temps, viscosity
decreases with temp.
Soft-Grade Asphalt - Answers Used in cold climates, hard-grade for hot climates.
Chemical Properties of Asphalt - Answers Mixture of hydrocarbons with minor heteroatoms and trace
metals.
Asphaltenes vs. Maltenes - Answers Asphaltenes responsible for viscosity and adhesion, maltenes are
carrier medium.
Fractionation Schemes - Answers Methods to separate asphalt components like partitioning, selective
adsorption.
Asphalt Cement - Answers Superior binder for pavement applications, blend of hydrocarbons.
Asphalt Cutback - Answers Asphalt cement dissolved in lighter molecular hydrocarbon solvent.
Asphalt Emulsion - Answers Asphalt dissolved in water, contains asphalt cement, water, and emulsifying
agent.
Harder Asphalt - Answers Shift towards heavier molecular weight hydrocarbons, viscous at room
temperature.
Semi-Solid Asphalt - Answers Cannot be applied at room temperature, needs heating.
Liquid Asphalt - Answers Cutbacks and emulsions that can be used without heating.
Cutback Disadvantages - Answers High petroleum costs, hazardous material, environmentally
unacceptable.
Emulsion Components - Answers 60%-70% asphalt cement, 30%-40% water, emulsifying agent like soap.
Emulsifying Agent - Answers Contains head portion with electrostatic charge, tail portion with high
asphalt affinity.
Breaking or Setting - Answers Separation between asphalt residue and water in emulsions.
Uses of Asphalt Cements - Answers Pavement construction, roof sealing, hot-mix asphalt production.
Fog Seal - Answers Surface layer sealant for asphalt pavement.
Tack Coat - Answers Adhesive layer between asphalt layers or surfaces.
Chip Seal - Answers Surface treatment using asphalt binder and aggregate.
Microsurfacing - Answers Thin layer of asphalt mixture for pavement maintenance.
Temperature Susceptibility - Answers Asphalt hardens at low temps, softens at high temps, viscosity
decreases with temp.
Soft-Grade Asphalt - Answers Used in cold climates, hard-grade for hot climates.
Chemical Properties of Asphalt - Answers Mixture of hydrocarbons with minor heteroatoms and trace
metals.
Asphaltenes vs. Maltenes - Answers Asphaltenes responsible for viscosity and adhesion, maltenes are
carrier medium.
Fractionation Schemes - Answers Methods to separate asphalt components like partitioning, selective
adsorption.
