PG 70-22 Polymer Modified

Performance Grade 70-22 Polymer Modified Bitumen

Performance Grade (PG) bitumen PG 70-22 is a type of asphalt binder classified within the Superpave Performance Grading (PG) system, which ensures that bitumen can perform under specific temperature ranges. The numbers in the grade indicate the highest and lowest pavement temperatures at which the bitumen can provide optimal performance.

Appearance: Black solid or a viscous liquid
Standards: AASHTO M 320-16
HS Code: 27132000

Package: Bitumen are packed in

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

Is PG 70-22 Modified or Unmodified?

PG 70-22 is often polymer-modified, which enhances its ability to withstand high temperatures and prevents rutting. The modification provides elasticity, making the binder more resistant to temperature-related stress.

Performance Grade PG 70-22 Polymer Modified - Technical Specifications

Properties	Units	Limits	Test Methods
Average 7-day maximum pavement design temperature	°C	<70
Minimum pavement design temperature^a	°C	>22
Original Binder
Flash Point	°C	Min. 230	AASHTO T48
Viscosity^b @135°C	Pa.s	Max. 3.0	AASHTO T316
Elastic Recovery	%	Min. 30	AASHTO T301
Dynamic Shear^c , G*/sin δ^d at 70°C at 10rad/s	kPa	Min. 1.0	AASHTO T315
Residual Binder from Rolling Thin-Film Test (AASHTO T240 / ASTM D2872)
Mass change^e	%Wt	Max. 1.0	AASHTO T240
Dynamic Shear, G*/sin δ^d at 70°C at 10rad/s	kPa	Min. 2.2	AASHTO T315
Pressure Aging Vessel Residue (PAV)
PAV Temperature	°C	100	AASHTO R28
Dynamic Shear, G*.sin δ^d at 28°C at 10rad/s	kPa	Max. 5000	AASHTO T315
Creep Stiffness^f at -12°C			AASHTO T313
- S value	Mpa	Max. 300
- M value (slope)		Min. 0.30
Direct Tension^f at, -12°C			AASHTO T314
- Failure strain, test temp @ 1.0 mm/min	%	Min. 1.0
Notes a - Pavement temperatures are estimated from air temperatures using an algorithm contained in the LTPP Bind program, may be provided by the specifying agency, or by following the procedures as outlined in M323 and R35. b - This requirement may be waived at the discretion of the specifying agency if the supplier warrants that the asphalt binder can be adequately pumped and mixed at temperatures that meet all applicable safety standards. c - For quality control of unmodified asphalt binder production, measurement of the viscosity of the original asphalt binder may be used to supplement dynamic shear measurements of G/sinδ at test temperatures where the asphalt is a Newtonian fluid. d - G/sin? = high temperature stiffness and G* sinδ = intermediate temperature stiffness. e - The mass change shall be less than 1.00 percent for either a positive (mass gain) or a negative (mass loss) change. f - If the creep stiffness is below 300 MPa, the direct tension test is not required. If the creep stiffness is between 300 and 600 MPa, the direct tension failure strain requirement can be used in lieu of the creep stiffness requirement. The m-value requirement must be satisfied in both cases.

Main Applications Of Performance Grade PG 70-22 Polymer Modified Bitumen

Highways and Major Roads: Used for high-traffic roads, expressways, and highways where durability is essential to prevent rutting and cracking.
Bridges and Overpasses: Ideal for bridge decks and elevated roadways, where temperature extremes can lead to surface damage.
Industrial Areas and Heavy-Duty Roads: Applied in industrial pavements and areas with heavy vehicle traffic, offering strength and longevity.
Airport Runways: Suitable for airport runways and taxiways, providing stability under high loads and temperature fluctuations.
Cold Climate Areas: Effective in regions with extreme winters and high summer temperatures, preventing cracking during freeze-thaw cycles.

PG 70-22 bitumen is highly versatile and used in applications such as highways, bridges, airports, and industrial areas. Its ability to resist both high-temperature rutting and low-temperature cracking ensures that it performs well in a variety of demanding environments.

Various Packing Method for PG 70-22 Polymer Modified Bitumen

Packing bitumen is an essential process to ensure its safe transportation, storage, and handling. The method of packing often depends on the type of bitumen, the transportation method, and the end-use. Here are the various methods used to pack bitumen:

PG 70-22 Polymer Modified

Performance Grade PG 70-22 Polymer Modified - Technical Specifications

Main Applications Of Performance Grade PG 70-22 Polymer Modified Bitumen

Various Packing Method for PG 70-22 Polymer Modified Bitumen

Drum Packing

Jumbo Packing

Tank Container