Section 770. Definitions

A. For the purpose of applying this article in the context of Regulations for the Control and Abatement of Air Pollution and related uses, the words or terms shall have the meanings given them in subsection C of this section.

B. As used in this article, all terms not defined herein shall have the meanings given them in 9VAC5-10 (General Definitions), unless otherwise required by context.

C. Terms defined.

"Asphalt" means a dark-brown to black cementitious material (solid, semisolid, or liquid in consistency) in which the predominating constituents are bitumens that occur in nature as such or that are obtained as residue in refining petroleum.

"Cutback asphalt" means asphalt cement that has been liquefied by blending with petroleum solvents (diluents). Upon exposure to atmospheric conditions the diluents evaporate, leaving the asphalt cement to perform its function.

"Emulsified asphalt" means an emulsion of asphalt cement and water that contains a small amount of an emulsifying agent; a heterogeneous system containing two normally immiscible phases (asphalt and water) in which the water forms the continuous phase of the emulsion, and minute globules of asphalt form the discontinuous phase.

"Paving operation" means the process of covering an area with stone, concrete, asphalt or other material in order to construct or maintain a firm, level surface for travel, access, or parking. Paving operations do not include the use of coatings to seal residential driveways.

"Penetrating prime coat" means an application of low-viscosity liquid asphalt to an absorbent surface. It is used to prepare an untreated base for an asphalt surface. The prime penetrates the base and fills the surface voids, hardens the top, and helps bind it to the overlying asphalt course. It also reduces the necessity of maintaining an untreated base course prior to placing the asphalt pavement.

Historical Notes

Derived from Volume 26, Issue 12, eff. March 17, 2010.

Statutory Authority

§ 10.1-1308 of the Code of Virginia.