PG 70-28 Performance Grade Bitumen — High-Stability Binder for Cold-Climate Highways

Engineered to resist rutting at pavement temperatures up to 70°C while staying flexible down to −28°C, PG 70-28 is the binder of choice for highways and heavy-traffic roads in regions with cold winters and wide temperature swings.

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What Is PG 70-28 Bitumen?

PG 70-28 is a performance-graded asphalt binder classified under Superpave, tested to ASTM D6373 for its behavior across a full range of pavement temperatures. The “70” denotes resistance to rutting at pavement temperatures up to 70°C, while “-28” denotes flexibility retained down to −28°C without cracking.

A higher first number means stronger resistance to deformation under heavy traffic and heat, while a lower second number means better protection against low-temperature thermal cracking. PG 70-28 sits in the middle of the PG70 range, balancing rutting resistance with solid cold-weather performance.

This dual-temperature classification — governed by AASHTO/ASTM Superpave standards — lets engineers and procurement teams match the exact binder grade to a region’s climate, rather than relying on penetration or viscosity alone.

Black Rock Bitumen PG-70-28

Essential Details

Description

  • Type
  • Penetration Grade Bitumen
  • Feed Stock
  • Crude Oil
  • HS Code
  • 27132000
  • Spot Test
  • Negative
  • Inspection
  • Included
  • Delivery Term
  • FOB-CFR-CIF
  • Production and Loading Period
  • FOB-CFR-CIF
  • Payment Term
  • TT Method FOB Delivery: 30% advance and balance against customs documents CFR/CIF Delivery: 30% advance and balance against B/L daft
  • Marking
  • Marking can be customized based on customer request
  • Supply Capacity
  • 50,000 MT/Month
  • Packing
  • -New Steel Drum -Jumbo Bag

Bitumen Grade PG-70-28 Specification

Performance Grade Bitumen PG-70-28 Specifications

Essential Details

Test Method

Unit

Min.

Max.

  • Average 7-day Max. Pavement Design Temp
  • ASTM D6373
  • °C
  • -
  • < 70
  • Minimum Pavement Design Temperature
  • ASTM D6373
  • °C
  • > -28
  • -
  • Flash Point Temp (T48)
  • ASTM D92
  • °C
  • 230
  • -
  • Viscosity @ 135°C
  • ASTM D4402
  • Pa·s
  • -
  • 0.3
  • Dynamic Shear, TP5
  • ASTM D6373
  • kPa
  • 1.00
  • -
  • Mass Loss
  • ASTM D6
  • %
  • –
  • 1.00
  • Dynamic Shear, TP5
  • ASTM D6373
  • kPa
  • 2.20
  • –
  • PAV Ageing Temperature
  • -
  • -
  • 100
  • 110
  • Spot Test
  • ASHTO T102
  • Negative

Bitumen Grade PG-70-28 MSDS

pdf

Bitumen PG-70-28 Safety Data Sheet

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Our Packaging

We deliver bitumen in versatile, secure options: economical Jumbo Bags, robust steel Drums, or high-volume Bulk Containers (Bitutainers/Bituboxes).

Terms of Payment

Payment Terms for Smooth Transactions

TT Method

The buyer pays 30% advance, with the balance against B/L draft (CFR) or customs docs (FOB).

LC at Sight

100% irrevocable, non-transferable, confirmed LC at sight, subject to bank approval by Black Rock Bitumen.

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    Our faqs

    Frequently Asked Questions.

    PG 70-28 Bitumen is a performance-graded asphalt binder designed to withstand high pavement temperatures up to 70°C while offering enhanced flexibility at low temperatures down to −28°C.

    PG 70-28 is a performance-graded asphalt binder designed to perform at high pavement temperatures up to 70°C and low temperatures down to −28°C.

    What are the main advantages of PG 70-28?

    It offers excellent resistance to rutting at high temperatures and superior protection against thermal cracking in colder climates.

    This grade is ideal for highways, expressways, and heavy-traffic roads in regions with cold winters and wide temperature variations.

    PG 70-28 maintains stiffness at high temperatures to prevent deformation while retaining flexibility at very low temperatures to reduce cracking.

    PG 70-28 provides better low-temperature performance, making it more suitable for colder climates while still offering strong high-temperature stability.