Asphalt binder - Study guides, Class notes & Summaries

AASHTO R-66 Definition - Liquid asphalt MATERIALs include Asphalt Binder/Asphalt Cement and Asphalt Emulsion AASHTO R-97 Definition - Asphalt MIXTURES include concrete or Hot Mix Asphalt (HMA) Asphalt Binder - -Asphalt cement -High viscosity at ambient temperatures -Upon heating, becomes liquid and can be mixed with aggregates to produce HOT MIX ASPHALT (HMA) Emulsified Asphalt - -Mixture of Asphalt Binder, water, and emulsifying agent. -Liquid at ambient temperature -Primarily diluted a...

Asphalt Chemistry - Bituminous material are *hydrocarbons* -very complex chemical composition that depends on the oil source and refining method -*Molecular structure is more important than composition* Asphalt types used in pavements - *Asphalt cement (asphalt binder)* -used for HMA(hot mixed asphalt) *Asphalt emulsion* -used for cold mix and maintenance applications *Asphalt cutback* -used for cold mix and maintenance applications. Asphalt Cement (binder) - Adheres to most rock -wate...

What is asphalt? - generally a by-product of petroleum distillation; a complex hydrocarbon; soluble in petroleum products; can be naturally-occuring What is tar? - generally a by-product of coal production; resistant to petroleum products How can a source of asphalt be identified? - by solubility tests Where was asphalt obtained from originally? -

What is asphalt? - generally a by-product of petroleum distillation; a complex hydrocarbon; soluble in petroleum products; can be naturally-occuring What is tar? - generally a by-product of coal production; resistant to petroleum products How can a source of asphalt be identified? - by solubility tests Where was asphalt obtained from originally? - Island of Trinidad and Venezuela; lakes What are petroleum-based asphalts? - a waste product from refinery-processing of crude oil; "bottom of ...

What makes up a quality asphalt mixture? - A quality asphalt mixture is determined by the constructability, if it conforms to Specifications, and if it satisfies functional requirements. CQC - contractor quality control Superpave - Asphalt mix design system since 1998 QCP - Quality control plan QCM - Quality control Manual QC - Quality Control (Contracting Testing and Inspection) VT - Verification Testing (FDOT or CEI Verification) CEI - Construction Engineering and Inspection RT - Reso...

Asphalt Paving Level 1 UPDATED ACTUAL Questions and CORRECT Answers A full lot of super pave asphalt is what size? 1,000 tons 1,000 to 2000 tons 2000 to 4000 tons 1 days production - CORRECT ANSWER- 2000 to 4000 tons Which is not typically used as an asphalt binder in fdot mix designs?

From a fatigue perspective, the asphalt cement content should be minimized. - FALSE Stiffness of asphalt concrete increases with decreasing the frequency of loading - FALSE Performance grading requires that the measured properties of asphalt cements meet a specific maximum or minimum limit at a specific temperature - TRUE Aging of asphalt cement decreases viscosity - FALSE The objective of rotational viscometer testing is to determine asphalt binder flash point - FALSE All of the following...

Difference between Asphalt and Tar correct answers Asphalt is soluble in petroleum, tar is not. Asphalt has bitumens, tar has low bitumens Two Different Distillation Process to Produce Asphalt correct answers 1. Fractional Distillation: Crude oil is heated, lighter oils vaporize and are drawn off, leaving behind asphalt cement 2. Destructive Distillation: crude oil heated under pressure to higher temperatures than fractional distillation Penetration test correct answers -Test hardness...

A full lot of super pave asphalt is what size? 1,000 tons 1,000 to 2000 tons 2000 to 4000 tons 1 days production - 2000 to 4000 tons Which is not typically used as an asphalt binder in fdot mix designs? PG 52-28 PG 58-22 PG 62-22 PG 76-22(PMA) PG 82-22 (PMA) - PG 62-22

Asphalt Chemistry - Bituminous material are *hydrocarbons* -very complex chemical composition that depends on the oil source and refining method -*Molecular structure is more important than composition* Asphalt types used in pavements - *Asphalt cement (asphalt binder)* -used for HMA(hot mixed asphalt) *Asphalt emulsion* -used for cold mix and maintenance applications *Asphalt cutback* -used for cold mix and maintenance applications.