MC-Cutback

MC Cutback

what is MC Cutback

Asphalt cutbacks use petroleum solvents for dissolving asphalt cement. The solvents are variously called distillate, diluent or cutter stock. If the solvent used in making the cutback asphalt is highly volatile, it will quickly escape by evaporation. Solvents of lower volatility evaporate more slowly. On the basis of the relative speed of evaporation, cutback asphalts are divided into three types: rapid curing (RC), medium curing (MC) and slow curing (SC).

Cutback Bitumen ( Liquid Bitumen ) is Bitumen that is dissolved in a solvent . Typical solvents include Naptha, gasoline and kerosene, white spirit etc. The type of solvent controls the curing time while the amount determines the viscosity of the Cutback Bitumen.

types of MC Cutback

MC30
MC70
MC250
MC800
MC3000

Description

Description

MC30

Property	Min	Max	Test Method
Kinematic viscosity at 60 ºc mm2/s	30	60	ASTM D2170
Flash point (tag open-cup) , ºc	38	–	ASTM D3143
Distillate test: Distillate, volume, percent of total distillate to 360 ºc
To 225 ºc	–	25	ASTM D402
To 260 ºc	40	70	ASTM D402
To 316 ºc	75	93	ASTM D402
Residue from distillation to 360 ºc, Percent volume by difference	50	–	ASTM D402
Test on residue from distillation :
Viscosity at 60 ºc	30	120	ASTM D2170
Penetration at 25 ºc	120	250	ASTM D5
Ductility at 25 ºc	100	–	ASTM D113
Solubility in trichloroethylene , %	99	–	ASTM D2042
Water, %	–	0.2	ASTM D95

MC70

Property	Min	Max	Test Method
Kinematic viscosity at 60 ºc mm2/s	70	140	ASTM D2170
Flash point (tag open-cup) , ºc	38	–	ASTM D3143
Distillate test: Distillate, volume, percent of total distillate to 360 ºc
To 225 ºc	–	20	ASTM D402
To 260 ºc	20	60	ASTM D402
To 316 ºc	65	90	ASTM D402
Residue from distillation to 360 ºc, Percent volume by difference	55	–	ASTM D402
Test on residue from distillation :
Viscosity at 60 ºc	30	120	ASTM D2170
Penetration at 25 ºc	120	250	ASTM D5
Ductility at 25 ºc	100	–	ASTM D113
Solubility in trichloroethylene , %	99	–	ASTM D2042
Water, %	–	0.2	ASTM D95

MC250

Property	Min	Max	Test Method
Kinematic viscosity at 60 ºc mm2/s	250	500	ASTM D2170
Flash point (tag open-cup) , ºc	66	–	ASTM D3143
Distillate test: Distillate, volume, percent of total distillate to 360 ºc
To 225 ºc	–	10	ASTM D402
To 260 ºc	15	55	ASTM D402
To 316 ºc	60	87	ASTM D402
Residue from distillation to 360 ºc, Percent volume by difference	67	–	ASTM D402
Test on residue from distillation :
Viscosity at 60 ºc	30	120	ASTM D2170
Penetration at 25 ºc	120	250	ASTM D5
Ductility at 25 ºc	100	–	ASTM D113
Solubility in trichloroethylene , %	99	–	ASTM D2042
Water, %	–	0.2	ASTM D95

MC800

Property	Min	Max	Test Method
Kinematic viscosity at 60 ºc mm2/s	800	1600	ASTM D2170
Flash point (tag open-cup) , ºc	66	–	ASTM D3143
Distillate test: Distillate, volume, percent of total distillate to 360 ºc
To 225 ºc	–	–	ASTM D402
To 260 ºc	–	35	ASTM D402
To 316 ºc	45	80	ASTM D402
Residue from distillation to 360 ºc, Percent volume by difference	75	–	ASTM D402
Test on residue from distillation :
Viscosity at 60 ºc	30	120	ASTM D2170
Penetration at 25 ºc	120	250	ASTM D5
Ductility at 25 ºc	100	–	ASTM D113
Solubility in trichloroethylene , %	99	–	ASTM D2042
Water, %	–	0.2	ASTM D95

MC3000

Property	Min	Max	Test Method
Kinematic viscosity at 60 ºc mm2/s	3000	6000	ASTM D2170
Flash point (tag open-cup) , ºc	66	–	ASTM D3143
Distillate test: Distillate, volume, percent of total distillate to 360 ºc
To 225 ºc	–	–	ASTM D402
To 260 ºc	–	15	ASTM D402
To 316 ºc	15	75	ASTM D402
Residue from distillation to 360 ºc, Percent volume by difference	80	–	ASTM D402
Test on residue from distillation :
Viscosity at 60 ºc	30	120	ASTM D2170
Penetration at 25 ºc	120	250	ASTM D5
Ductility at 25 ºc	100	–	ASTM D113
Solubility in trichloroethylene , %	99	–	ASTM D2042
Water, %	–	0.2	ASTM D95