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PMB 76-22

Polymer Modified Bitumen (PMB) 76-22 is a type of asphalt binder modified with polymers to enhance its performance under extreme temperature conditions and heavy traffic loads. The designation “76-22” indicates the temperature range within which this bitumen can effectively perform

Appearance: Black solid or a viscous liquid
Standards: IS 15462:2019
HS Code: 27132000

Package: Bitumen are packed in

New Steel Drums of 200Kg / 180Kg / 156Kg / Customized
Jumbo Bags of 1Ton
Bulk Bitumen Tank Container

Polymer Modified Bitumen PMB 76-22 – Technical Specifications

Properties	Units	Limits	Test Methods
Softening Point, Ring & Ball	°C	Min. 75	ASTM D36
Elastic Recovery at 15°C	%	Min. 80	ASTM D6084
Flash Point Cleveland open cup	°C	Min. 230	ASTM D92
Viscosity at 150 °C	Pa.s	Max. 1.5	ASTM D2171
Complex modulus G*/Sin δ at 76°C,25mm Plate,1mm Gap, at 10rad/s	kPa	Min. 1.0	ASTM D7175
Phase Angle (δ)	degrees (°)	max. 75	ASTM D7175
Separation, Difference in Softening Point	°C	Max. 3	–
FRAASS Breaking Point^a	°C	Max. -22	EN 12593
After Rolling Thin-Film Oven Test (RTFO)			ASTM D1754
Loss on Heating	%Wt	Max. 1.0	ASTM D6
Complex modulus G*/Sin δ at 76°C,25mm Plate,1mm Gap, at 10rad/s	kPa	Min. 2.2	ASTM D7175
Multiple Stress Creep Recovery (MSCR) test			ASTM D7405
a) Standard Traffic (S), Jnr 3.2, Jnr diff Max 75% at 76°C	kPa-1	Max. 4.5	ASTM D7405
b) Heavy Traffic (H), Jnr 3.2, Jnr diff Max 75% at 76°C	kPa-1	Max. 2.0	ASTM D7405
C) Very Heavy Traffic (H), Jnr 3.2, Jnr diff Max 75% at 76°C	kPa-1	Max. 1.0	ASTM D7405
d) Extremely Heavy Traffic (H), Jnr 3.2, Jnr diff Max 75% at 76°C	kPa-1	Max. 0.5	ASTM D7405
Pressure Aging Vessel Residue (PAV)
Complex modulus G*/Sin δ at 31°C, 8mm Plate, 2mm Gap, at 10rad/s	kPa	Max. 6000	ASTM D7175
Notes a – FRAASS Breaking Point only to be evaluated in case the project site has subzero temp conditions.

Key Characteristics of PMB 76-22

High Temperature Performance: Designed to perform effectively at high temperatures up to 76°C without significant rutting or deformation. This makes it suitable for areas with high traffic loads or hot climates.
Low Temperature Performance: Maintains flexibility and resists cracking down to -22°C, making it effective in regions with very cold climates.
Polymer Modification: Often modified with styrene-butadiene-styrene (SBS) or other elastomers to improve elasticity, cohesion, and durability. T

Main Applications Of Polymer Modified Bitumen PMB 76-22

PMB 76-22 is used in situations where extreme temperature resistance, durability, and flexibility are essential:

Highways and Expressways: Used in high-traffic highways and expressways that experience heavy and continuous traffic. PMB 76-22’s high-temperature resistance prevents rutting and deformation, ensuring road longevity and stability.
Bridges and Overpasses: Applied on bridge decks and overpasses where temperature fluctuations and repeated loading create additional stresses. The low-temperature flexibility helps prevent cracking and the high-temperature resistance helps reduce rutting.
Airport Runways and Taxiways: Ideal for airport pavements, where the asphalt needs to handle heavy aircraft loads and temperature extremes. PMB 76-22 provides high resistance to both rutting and cracking in aviation environments.
Urban Roads and Industrial Zones: Suitable for urban and industrial roads with heavy vehicle loads and continuous use. PMB 76-22’s high deformation resistance and flexibility make it ideal for areas with repeated heavy traffic.
Cold Climate Regions: Effective in regions with harsh winters, where pavements are exposed to very low temperatures. Its flexibility at -22°C prevents cracking due to thermal contraction.

PMB 76-22 is a polymer-modified bitumen designed for use in conditions that demand high resistance to extreme heat and cold. It performs well in temperatures ranging from 76°C to -22°C, making it suitable for highways, bridges, airport runways, urban roads, and regions with cold climates. Its polymer modification enhances its elasticity, durability, and resistance to deformation and cracking, ensuring long-lasting pavement stability and performance.