Rosco Maximizer 2B, Инструкция по эксплуатации, обслуживанию и ремонту

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4
Rosco Maximizer 2B Asphalt Distributor 4-5
Specifications
Contamination
It is very important to remember that when you are
loading a new material into the Maximizer, you must
be sure that the new material is compatible with the
residual material in the tank. The safest thing to do is
to completely clean out the tank and the entire system .
Total clean out is essential if you are not sure of the last
material that was used in the unit .
However, some materials can be loaded with a small
residual amount (0 .5 % of capacity or less) of the
previous material remaining in the tank, (see
Guide For
Loading Asphalt Products in Section 4) .
To reduce the risks of fire or explosion, follow Table
4-5. Guide For Loading Asphalt Products to eliminate
contamination .
When incompatible materials are mixed, it can increase
the possibility that the material will not meet the job
specifications. More importantly, mixing materials can
increase the risk of fire or explosion. For example, light
hydrocarbons may be present in a tank from previous
loads or from diesel oil or solvents used in cleaning the
tank .
Be sure the tank has no water in it
before loading. Hot material will turn water into
steam and can cause an explosion.
Emulsified Asphalt:
• An emulsion of asphalt cement and water with a small
amount of an emulsifying agent. The emulsifying agent
determines the charge of the asphalt particles . It may
have a negative (-) charge called anionic, or a positive
(+) charge called cationic .
NOTE: An anionic type of emulsion will work best with
aggregates having positive (+) surface charges
such as limestone and dolomite .
A cationic type of emulsion will work best with
aggregates having negative (-) surface charges
such as siliceous or granitic aggregates .
DO NOT mix emulsion types,
especially anionic with cationic.
Standard grades of Emulsified Asphalt are:
Anionic (- charge) :
• RS-1, RS-2, MS-1, MS-2, MS-2h, HFMS-1, HFMS-2,
HFMS-2h, HFMS-2s, SS-1, SS-1h .
Cationic (+ charge) :
• CRS-1, CRS-2, CMS-2, CMS-2h, CSS-1, CSS-1h .
• RS, MS, SS: Indicate the emulsion setting rate . (Rapid
Set, Medium Set, Slow Set)
• h, s: Indicate if a hard or soft base asphalt is used in
the mix .
• HF: Indicates High-Float which means chemicals have
been added to permit a thicker film of asphalt on the
aggregate particles to prevent drain off of asphalt
from the aggregate .
• C: Indicates a cationic asphalt. The absence of the
letter “C” means it is anionic asphalt .
Viscosity
Viscosity is a fluid’s resistance to flow (how thick and
adhesive a fluid is). The recommended viscosity for
spraying with a distributor is 25 to 50 Saybolt Furol
seconds (45 - 100 Centistokes Kinematic Viscosity) .
The recommended viscosity for loading or pumping
is a maximum of 400 Saybolt Furol seconds (800
Centistokes Kinematic Viscosity) .
Viscosities above these ranges will limit the
performance of the machine. Your asphalt provider will
be able to tell you the viscosity of your product .
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