AC 40
AC 40 is an asphalt cement graded by its viscosity at 60°C (3200–4800 poise) on the original binder, per AASHTO M226 / ASTM D3381. Its stiffness gives excellent resistance to rutting and deformation, making it a strong choice for hot climates, heavy and slow-moving traffic, and base and binder courses.
Where AC 40 is used
Viscosity grade bitumen is classified by its viscosity at 60°C — the maximum pavement temperature — which predicts rutting performance more reliably than penetration alone.
- 01Base and binder courses on highways and heavy-traffic roads
- 02Pavements in hot climates where rutting resistance is critical
- 03Airport aprons, ports, container yards and industrial hardstanding
- 04High-modulus asphalt and heavy-duty pavement designs
Conforms to AASHTO M226 · ASTM D3381
Supplied to AASHTO M226 (Table 1) / ASTM D3381. Tested for viscosity at 60°C and 135°C, penetration, flash point, solubility and thin-film oven residue properties.
Typical specifications — AC 40
| Property | Unit | Min | Max | Test method |
|---|---|---|---|---|
| Viscosity at 60°C | Poise | 3200 | 4800 | ASTM D2171 |
| Kinematic viscosity at 135°C | cSt | 400 | – | ASTM D2170 |
| Penetration at 25°C | 0.1 mm | 40 | – | ASTM D5 |
| Flash point (COC) | °C | 232 | – | ASTM D92 |
| Solubility in trichloroethylene | % | 99.0 | – | ASTM D2042 |
| Tests on residue from thin-film oven test | ||||
| Viscosity at 60°C | Poise | – | 24000 | ASTM D2171 |
| Ductility at 25°C | cm | 25 | – | ASTM D113 |
Typical values based on AASHTO M226 · ASTM D3381. The binding specification for each cargo is the certificate of analysis issued at loading. Custom specifications are available on request.
Storing AC 40
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 AC 40
Get a price for AC 40
Tell us the quantity and destination port. We'll send you a written offer today.
- No cost to ask
- FOB · CIF · CFR · DAP
- LC, SBLC or TT against documents
AC 40: common questions
What is AC 40?+
AC 40 is an asphalt cement graded by its viscosity at 60°C (3200–4800 poise) on the original binder, per AASHTO M226 / ASTM D3381. Its stiffness gives excellent resistance to rutting and deformation, making it a strong choice for hot climates, heavy and slow-moving traffic, and base and binder courses.
What is AC 40 used for?+
AC 40 is mainly used for: base and binder courses on highways and heavy-traffic roads; pavements in hot climates where rutting resistance is critical; airport aprons, ports, container yards and industrial hardstanding; high-modulus asphalt and heavy-duty pavement designs.
Which standard does WGV's AC 40 meet?+
Supplied to AASHTO M226 (Table 1) / ASTM D3381. Tested for viscosity at 60°C and 135°C, penetration, flash point, solubility and thin-film oven residue properties.
How is AC 40 shipped?+
WGV Oil Trading ships AC 40 by steel drums, jumbo bags, 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 AC 40?+
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.