Performance Grade

Performance Grade Bitumen is the Latest Standard of bitumen. It is new method bitumen standard which based on varying temperatures. This method studies the mechanical specifications of bitumen. Since in this method, a temperature range is defined for bitumen, the consumer can easily choose the desired product. Performance Grade determined for polymer modified bitumen and pure bitumen based on environmental conditions and temperature. The wider PG Grades Range the higher resistance and more favorable specifications.

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Description

Bitumen Specification 58 – 22

Performance Grade (P.G) Analysis

(ASTM D6373)

Original
Acceptable Range	Result		Unit	Specifications	Test Method
Acceptable Range	Fail	Pass	Unit	Specifications	Test Method
		58	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		87.1	°	Phase angle (δ)
		1.53	Kpa	G*
Min 1.0		1.53	Kpa	│G*│/sinδ
Max 3	0.26		Pa.s	135°c at	Rotational Viscometer (R.V) ASTM D4402
	86		0.1mm	at 25°c	Penetration ASTM D5
Rolling Thin Film Oven (R.T.F.O) ASTM D2872
		58	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		86.1	°	phase angle (δ)
		2.8	Kpa	G*
Min 2.2		2.8	Kpa	│G*│/sinδ
Pressure Aging Vessel (P.A.V) ASTM D6521
		25	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		50.5	°	phase angle (δ)
		3850	Kpa	G*
Max 5000		2940	Kpa	│G*│× sinδ
	-22		°c	(Temperature)	Bending Beam Rheometer (B.B.R) ASTM D6648
Min 0.3	0.31			m-Value
Max 300	137		M.pa	Stiffness

Bitumen Specification 64 – 16

Performance Grade (P.G) Analysis

(ASTM D6373)

Original
Acceptable Range	Result		Unit	Specifications	Test Method
Acceptable Range	Fail	Pass	Unit	Specifications	Test Method
		64	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		86.4	°	Phase angle (δ)
		1.15	Kpa	G*
Min 1.0		1.16	Kpa	│G*│/sinδ
Max 3	0.32		Pa.s	135°c at	Rotational Viscometer (R.V) ASTM D4402
	68		0.1mm	at 25°c	Penetration ASTM D5
Rolling Thin Film Oven (R.T.F.O) ASTM D2872
		64	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		87.1	°	phase angle (δ)
		2.18	Kpa	G*
Min 2.2		2.21	Kpa	│G*│/sinδ
Pressure Aging Vessel (P.A.V) ASTM D6521
		25	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		54	°	phase angle (δ)
		5460	Kpa	G*
Max 5000		4420	Kpa	│G*│× sinδ
	-16		°c	(Temperature)	Bending Beam Rheometer (B.B.R) ASTM D6648
Min 0.3	0.36			m-Value
Max 300	83.3		M.pa	Stiffness

Bitumen Specification 70 – 16

Performance Grade (P.G) Analysis

(ASTM D6373)

Original
Acceptable Range	Result		Unit	Specifications	Test Method
Acceptable Range	Fail	Pass	Unit	Specifications	Test Method
		70	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		85.3	°	Phase angle (δ)
		1.08	Kpa	G*
Min 1.0		1.08	Kpa	│G*│/sinδ
Max 3	0.5		Pa.s	135°c at	Rotational Viscometer (R.V) ASTM D4402
	42		0.1mm	at 25°c	Penetration ASTM D5
Rolling Thin Film Oven (R.T.F.O) ASTM D2872
		70	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		82.4	°	phase angle (δ)
		2.31	Kpa	G*
Min 2.2		2.3	Kpa	│G*│/sinδ
Pressure Aging Vessel (P.A.V) ASTM D6521
		31	°c	Temperature	Dynamic Shear Rheometer (D.S.R) ASTM D7175
		54.4	°	phase angle (δ)
		4700	Kpa	G*
Max 5000		4000	Kpa	│G*│× sinδ
	-16		°c	(Temperature)	Bending Beam Rheometer (B.B.R) ASTM D6648
Min 0.3	0.31			m-Value
Max 300	72		M.pa	Stiffness