Current through Register Vol. 39, No. 6, September 16, 2024
(a) For the purpose
of this Rule, the following definitions apply:
(1) "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.
(2) "Cutback asphalt" means asphalt cement
that has been liquefied by blending with petroleum solvents or diluents. Upon
exposure to atmospheric conditions, the diluents evaporate, leaving the asphalt
cement to perform its function.
(3)
"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 plugs the 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.
(b) This Rule
applies to the manufacture and use of cutback asphalts for the purpose of
paving or maintaining roads, highways, streets, parking lots, driveways, curbs,
sidewalks, airfields, such as runways, taxiways, and parking aprons,
recreational facilities, such as tennis courts, playgrounds, and trails, and
other similar structures.
(c)
Cutback asphalt shall not be manufactured, mixed, stored, used, or applied
except where:
(1) long-life, of one month or
more, stockpile storage is necessary;
(2) the use or application at ambient
temperatures less than 50°F, as measured at the nearest National Weather
Service Field Local Office or Federal Aviation Administration Surface Weather
Observation Station, is necessary;
(3) the cutback asphalt is to be used solely
as a penetrating prime coat; or
(4)
the user can demonstrate to the Director that there are no volatile organic
compound emissions under conditions of normal use.
Authority
G.S.
143-215.3(a)(1);
143-215.107(a)(5);
Eff. July 1, 1979;
Amended Eff. December 1, 1989; January 1, 1985;
June 1, 1980;
Readopted Eff. November 1,
2020.
