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RC 70

Cutback bitumen RC70 is dissolved of bitumen in solvents of Naphtha. Adding naphtha (cutback agent) to the bitumen reduce the viscosity of bitumen. Cut back bitumen has petroleum solvent such as naphtha, kerosene, diesel fuel and gasoline which improves the ability to coat aggregates.

Cutback asphalt is an asphalt cement that has a solvent or distillate such as gasoline, diesel fuel, kerosene, or naphtha added to make the asphalt liquid at ambient temperatures and improve its ability to coat aggregates.

Specifications permit up to 45 percent distillate in manufacturing an RC-70 cutback asphalt.

 

The main applications of RC-70 are in construction and maintenance of pavement, tack coat and prime coat.

 

Cut back bitumen are easy to use because it is cold applied. Cut back grade bitumen is normally used in spraying. Rapid curing cutback petroleum asphalt supplied by bitumen supply manufacturing from vacuum distillation of crude oil blended with a petroleum solvent.

 

 

 

INTERNATIONAL BITUMEN SUPPLY guarantee to supply  the cut back asphalt RC-70   in compliance to the mentioned specification in table.

  

Packing: Bitumen supply is able to provide every packaging according to customers enquiry.

 

Specification of RC-70 bitumen

Characteristic

Unit

min

max

Test method

Kinematic visccosity@60°C

cSt

70

140

ASTM D2170

Test on distillation residue





Penetration at 25°C, 100gr, 5 sec

-

80

120

ASTM D5

Ductility

cm

100


ASTM D113

Water %

-


0.2

ASTM D 95

Solubility in trichloroethylene %wt

-

99


ASTM D2042

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