MOJAVE DESERT AIR QUALITY MANAGEMENT DISTRICT
RULE 1103 - CUTBACK AND EMULSIFIED ASPHALT
(Adopted: December 21, 1994)
- Purpose: To reduce emissions of volatile organic compounds (VOC) from the use of cutback and emulsified
- Applicability. The provisions of this rule apply to the manufacture, mixing, storage, use, and application
of cutback and emulsified asphalts.
For the purposes of this rule, the following definitions shall apply:
- "Asphalt": a brownish-black cementitious material (solid, semi-solid or liquid in consistency)
of which the main constituents are bitumens which occur naturally or are a residue of petroleum refining.
- "Cutback Asphalt": paving grade asphalt liquified with petroleum distillate and as further
defined by American Society for Testing and Materials (ASTM) specifications as follows:
||Rapid cure type:
||Medium cure type:
||Slow cure type (road oils):
- "Dust Palliative": any light application of liquified asphalt (cutback or emulsified asphalt)
for the express purpose of controlling loose dust.
- "Emulsified Asphalt": any asphalt liquified with water containing an emulsifier. The two kinds
of emulsions most pertinent are the anionic and cationic types.
- "Exempt Compounds": Any of the following compounds: carbon monoxide, carbon dioxide, carbonic
acid, metallic carbides or carbonates, ammonium carbonate, and those compounds listed in 40 CFR 51.100(s)(1).
- "Long-period": a time period of ninety days or greater.
- "Penetrating Prime Coat": any application of asphalt to an absorbent surface to penetrate
and bind the aggregate surface and promote adhesion between it and the new superimposed construction. Prime coats
do not include dust palliatives or tack coats.
- "Tack Coat": any application of asphalt to an existing surface to provide a bond between new
surfacing and existing surface and to eliminate slippage places where the new and existing surfaces meet.
- "Volatile Organic Compounds (VOC)": any compound of carbon, excluding carbon monoxide, carbon
dioxide, carbonic acid, metallic carbides or carbonates, and ammonium carbonate, which participates in atmospheric
photochemical reactions, excluding those exempt compounds listed in 40 CFR 51.100(s)(1).
- A person shall not manufacture for sale nor use for paving, road construction or road maintenance any:
(a) Rapid cure cutback asphalt;
(b) Medium cure cutback asphalt; or
(c) Slow cure cutback asphalt containing more than 0.5 percent by volume of VOC which evaporate at 260C (500F)
as determined by ASTM Method D402-76.
- A person shall not manufacture for sale nor use for paving, road construction or road maintenance any emulsified
asphalt containing more than 3 percent by volume of VOC which evaporate at 260C (500F) as determined by ASTM Method
- The requirements of Section (C) shall not apply to the use of cutback asphalt or emulsified asphalt in the
manufacturing of paving materials where such materials are for immediate shipment and eventual use outside of the
- The provisions of subsections (C)(1)(b) and (C)(2)(b) shall not apply to the following uses of medium cure
cutback asphalt and slow cure cutback asphalt which contains more than 0.5 percent by volume of VOC:
(a) As a penetrating prime coat for aggregate bases prior to paving;
(b) For the manufacture of asphalt for long-period storage or stockpiling of patching mixes used in pavement
maintenance but not for general paving; or
(c) When the National Weather Service official forecast of the high temperature for the 24 hour period following
application is below 10C (50F).
(E) Monitoring and Records
- For cutback asphalts and emulsified asphalts which contain solvents, the following records shall be maintained
on a daily basis and retained on site for at least two years in such a manner as to be easily accessible and available
for inspection by the Air Pollution Control Officer:
(a) Any person who manufactures such asphalts shall maintain records showing the types and amounts of such asphalts
which were produced and the destination of these products.
(b) Any person who uses such asphalts shall maintain records showing the types, amounts received, and amounts
used of such asphalts.
(F) Test Methods
- Analysis of cutback asphalt samples for VOC content shall be in accordance with ASTM Method D402-76.
- Analysis of emulsified asphalt samples for VOC content shall be in accordance with ASTM Method D244-92.
- Measurement of exempt compound content in shall be in accordance with ARB Method 432. Perfluorocarbon compounds
shall be assumed to be absent from a product or process unless a manufacturer or facility operator identifies the
specific individual compounds (from the broad classes of perfluorocarbon compounds) and the amounts present in
the product or process and identifies a validated test method which can be used to quantify the specific compounds.
(G) Compliance Schedule
- Any person manufacturing, mixing, storing, using and/or applying cutback and emulsified asphalts shall comply
with the provisions of this rule by April 30, 1995.