PG 70-28
PG 70-28 is a Superpave performance grade binder for pavements that reach 70°C at the surface and drop to -28°C. It suits hot-climate pavements with heavy traffic loading.
Where PG 70-28 is used
Performance grade (PG) binders are specified by the pavement temperatures they must withstand. PG 76-22 performs from a 7-day average maximum pavement temperature of 76°C down to a minimum of -22°C.
- 01Highways and heavy-traffic routes in climates up to 70°C pavement temperature
- 02Interstate and arterial hot-mix asphalt
- 03Superpave-designed asphalt mixes
- 04Resurfacing and rehabilitation projects
Conforms to AASHTO M320
Supplied to AASHTO M320. Tested for rheology on the original binder, after RTFO short-term ageing and after PAV long-term ageing, with BBR low-temperature tests.
Typical specifications — PG 70-28
| Property | Unit | Min | Max | Test method |
|---|---|---|---|---|
| Original binder | ||||
| Flash point (COC) | °C | 230 | – | AASHTO T48 |
| Rotational viscosity at 135°C | Pa·s | – | 3 | AASHTO T316 |
| DSR G*/sin δ at 70°C | kPa | 1.00 | – | AASHTO T315 |
| RTFO residue (AASHTO T240) | ||||
| Mass change | % | – | 1.00 | AASHTO T240 |
| DSR G*/sin δ at 70°C | kPa | 2.20 | – | AASHTO T315 |
| PAV residue (AASHTO R28) | ||||
| DSR G*·sin δ at 24°C | kPa | – | 5000 | AASHTO T315 |
| BBR creep stiffness at -18°C | MPa | – | 300 | AASHTO T313 |
| BBR m-value at -18°C | – | 0.300 | – | AASHTO T313 |
Typical values based on AASHTO M320. The binding specification for each cargo is the certificate of analysis issued at loading. Custom specifications are available on request.
Storing PG 70-28
Temperature: Keep paving grades between roughly 140°C and 170°C in working tanks, and store at the lower end for long holds. Avoid repeated heat-up and cool-down cycles.
Tanks: Use insulated, heated steel tanks with a closed vent system. Dedicate a tank to one grade, or clean it fully between grades to avoid cross-contamination.
Safety: Water and hot bitumen must never meet, because it causes violent foaming. Use heat-resistant PPE, and keep a dry, ventilated area with no ignition sources near the vents.
Shelf life: Bitumen hardens slowly under prolonged heat. Rotate stock, avoid holding it at peak temperature, and re-test before use after long storage.
How we ship PG 70-28
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- FOB · CIF · CFR · DAP
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PG 70-28: common questions
What is PG 70-28?+
PG 70-28 is a Superpave performance grade binder for pavements that reach 70°C at the surface and drop to -28°C. It suits hot-climate pavements with heavy traffic loading.
What is PG 70-28 used for?+
PG 70-28 is mainly used for: highways and heavy-traffic routes in climates up to 70°C pavement temperature; interstate and arterial hot-mix asphalt; superpave-designed asphalt mixes; resurfacing and rehabilitation projects.
Which standard does WGV's PG 70-28 meet?+
Supplied to AASHTO M320. Tested for rheology on the original binder, after RTFO short-term ageing and after PAV long-term ageing, with BBR low-temperature tests.
How is PG 70-28 shipped?+
WGV Oil Trading ships PG 70-28 by steel drums, bitutainer or bulk, on FOB, CIF, CFR or DAP terms. Every cargo is inspected at the load port by SGS, Intertek or an equivalent independent inspector.
How do I get a price for PG 70-28?+
Send the quantity, destination port, preferred Incoterms and timing through the quote form on this page, by WhatsApp on +34 663 192 105, or by email to sales@wgvoiltrading.com. WGV Oil Trading replies with a written offer the same day. Payment is by documentary LC, SBLC or TT against documents.