CIVL 3820 - Asphalt Binders questions with
verified answers
Bituminous materials are important in constructing: Ans✔✔✔-Roofing Systems
Sealants/Coatings
Pavements
Hot mix production in the US in 2021 Ans✔✔✔-432 million tons
Asphalt use Ans✔✔✔-20 million tons
Spent on asphalt paving materials Ans✔✔✔-$3 billion/year
Asphalt pavement industry employs Ans✔✔✔-140,000
"A dark brown to black cementitious material in which the predominating
constituents are bitumens which occur in nature or are obtained in petroleum
processing." Ans✔✔✔-Asphalt
Natural Asphalts Ans✔✔✔-La Brea Tar Pits
Trinidad Lake Apshalt
Tars are manufactured from distillation of ___ Ans✔✔✔-Coal
If heated, tar gives off harmful fumes and is considered a _______ Ans✔✔✔-
health hazard
, In the US, tars are limited in use primarily for ____________________ such as
roofs; also used for ____________________ Ans✔✔✔-waterproofing
membranes; pavement treatments
Tar is ___________ in petroleum fuels and oils Ans✔✔✔-NOT soluble
Refined Asphalts are "leftovers" of __________ Ans✔✔✔-petroleum refining
How do you separate the fractions? (AKA refine) Ans✔✔✔-A distillation process:
separation of various crude fractions with different boiling ranges
Asphalt Binder is used for: Ans✔✔✔--asphalt mixes
- patching
-repairing asphalt and PCC
Asphalt Emulsion and cutback are used for: Ans✔✔✔-Maintenance Applications:
- fog seals
- chip seals
- slurry seals
- microsurfacing
Crack sealing
Cold mixes for patching
Base and subbase stabilization and surfacing of low volume roads
verified answers
Bituminous materials are important in constructing: Ans✔✔✔-Roofing Systems
Sealants/Coatings
Pavements
Hot mix production in the US in 2021 Ans✔✔✔-432 million tons
Asphalt use Ans✔✔✔-20 million tons
Spent on asphalt paving materials Ans✔✔✔-$3 billion/year
Asphalt pavement industry employs Ans✔✔✔-140,000
"A dark brown to black cementitious material in which the predominating
constituents are bitumens which occur in nature or are obtained in petroleum
processing." Ans✔✔✔-Asphalt
Natural Asphalts Ans✔✔✔-La Brea Tar Pits
Trinidad Lake Apshalt
Tars are manufactured from distillation of ___ Ans✔✔✔-Coal
If heated, tar gives off harmful fumes and is considered a _______ Ans✔✔✔-
health hazard
, In the US, tars are limited in use primarily for ____________________ such as
roofs; also used for ____________________ Ans✔✔✔-waterproofing
membranes; pavement treatments
Tar is ___________ in petroleum fuels and oils Ans✔✔✔-NOT soluble
Refined Asphalts are "leftovers" of __________ Ans✔✔✔-petroleum refining
How do you separate the fractions? (AKA refine) Ans✔✔✔-A distillation process:
separation of various crude fractions with different boiling ranges
Asphalt Binder is used for: Ans✔✔✔--asphalt mixes
- patching
-repairing asphalt and PCC
Asphalt Emulsion and cutback are used for: Ans✔✔✔-Maintenance Applications:
- fog seals
- chip seals
- slurry seals
- microsurfacing
Crack sealing
Cold mixes for patching
Base and subbase stabilization and surfacing of low volume roads
