Bitumen 60/70 is a medium-hard penetration grade with a needle penetration of 60 to 70 dmm at 25 °C, tested to ASTM D5. It is the most widely exported paving grade in the world, and in warm and tropical climates it is the default binder for hot mix asphalt. ZUMRUT INT Co. supplies it in jumbo bags, bitubags, steel drums and bulk, with a batch certificate of analysis issued before every shipment.
What is Bitumen 60/70?
Penetration grade measures hardness: a standard needle is dropped into a bitumen sample at 25 °C under a 100 g load for five seconds, and the depth it reaches in tenths of a millimetre is the penetration value. The lower the number, the harder the binder. Bitumen 60/70 sits in the middle of the commercial range.
It is produced by vacuum distillation of crude oil residue. Its softening point of 49–56 °C, combined with high ductility and strong adhesion to mineral aggregate, is what makes it the dominant choice for hot mix asphalt in warm climates — stiff enough to resist rutting under heavy axle loads, flexible enough to resist fatigue cracking under repeated traffic cycles.
Compare the full range on our penetration grade bitumen page, or cross-reference grading systems on the grade equivalence chart.
Where Bitumen 60/70 is used
Road construction and highway paving
In flexible pavement design, Bitumen 60/70 is the binder in both the binder course and the wearing course. It is the standard grade specified for highways, expressways, urban arterials, airport taxiways and runways, and port access roads — anywhere high traffic volume and heavy loading are expected.
Climate suitability. Bitumen 60/70 performs best where the annual average pavement temperature exceeds 20 °C. That covers Sub-Saharan and East Africa, Southeast Asia, South Asia and the Middle East. In those climates its softening point keeps the surface from deforming during peak summer temperatures. Below an annual average of about 10 °C, a softer grade such as 80/100 holds flexibility better and resists brittle fracture.
Waterproofing and industrial use
Beyond paving, Bitumen 60/70 is a primary raw material in the waterproofing industry. Consistent viscosity, a high flash point and strong adhesion to mineral substrates make it the standard base for:
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Bituminous primers
Applied to concrete, masonry and metal before membrane installation to penetrate porous substrates and improve adhesion.
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Cold-applied coatings
Dissolved or emulsified for brush and spray application on foundations, retaining walls and underground structures.
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Hot-applied coatings
Used directly at elevated temperature for pipeline corrosion protection and below-grade waterproofing.
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Modified membranes
The base bitumen in SBS and APP modified sheets for roofing, tunnels and bridge decks.
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Bridge decks
Waterproofing and protection layers beneath the wearing course.
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Industrial
Hardstanding and industrial flooring, sound dampening underlays, anti-corrosion wrapping for buried pipelines.
Waterproofing manufacturers generally select 60/70 over softer grades because its rheology allows tighter formulation control and more stable coating performance across a wider range of application conditions.
Bitumen 60/70 compared with 40/50 and 80/100
Grade selection comes down to three things: climate, traffic load and application type.
| Property | Bitumen 40/50 | Bitumen 60/70 | Bitumen 80/100 |
|---|---|---|---|
| Penetration @25 °C | 40–50 dmm (hardest) | 60–70 dmm (medium) | 80–100 dmm (softest) |
| Softening point | 52–60 °C | 49–56 °C | 42–50 °C |
| Climate | Very hot, tropical | Warm to hot, above 20 °C | Temperate, cold |
| Traffic load | Very heavy, slow-moving | Heavy, highway | Light to medium |
| Rutting resistance | Highest | High | Moderate |
| Low-temperature flexibility | Lower | Moderate | Better |
| Typical markets | Gulf states, equatorial Africa | Africa, SE Asia, Middle East, South Asia | Europe, Central Asia, East Asia |
Bitumen 40/50 is specified where heat and slow heavy loading combine — port aprons, bus stops, loaded intersections. Bitumen 80/100 gives better crack resistance in cooler regions. Bitumen 60/70 is the all-purpose export grade and covers the majority of global road project requirements.
Density of Bitumen 60/70
Density at 25 °C is 1.01–1.06 g/cm³, typically about 1.03 g/cm³, measured to ASTM D70. The same property is often written as specific gravity, expressed relative to water at the same temperature.
It matters in four practical places. Volume-to-weight conversion: at 1.03 g/cm³, one metric ton occupies roughly 971 litres at 25 °C — the figure you need when buying or shipping by volume. Tank planning: maximum fill volumes and heating energy per ton. Mix design: used with aggregate bulk density in Marshall and Superpave methods to calculate air voids, VMA and optimum binder content. Plant metering: density falls as temperature rises, so metering by volume at elevated temperature needs correction or the mix is over- or under-dosed.
| Temperature | Approximate density | Context |
|---|---|---|
| 15 °C | ~1.04–1.05 g/cm³ | Ambient drum and bag storage |
| 25 °C | 1.01–1.06 g/cm³ | ASTM D70 laboratory specification value |
| 60 °C | ~1.00–1.01 g/cm³ | Warm climate outdoor storage |
| 135 °C | ~0.985 g/cm³ | Kinematic viscosity reference temperature |
| 150 °C | ~0.970–0.980 g/cm³ | HMA mixing and drum loading |
Values at elevated temperature are indicative, based on standard thermal expansion coefficients for penetration grade bitumen. Exact figures vary slightly with crude source and refinery process.
Packing and container loading
Packing choice drives both delivered cost and what you need at destination. The figures below are exact loading quantities for freight booking and project planning.
| Packing | Unit weight | 20′ container | 40′ container |
|---|---|---|---|
| Jumbo bag with steel cage and pallet | 1,000 kg | 20 bags / 20 MT | 26 bags / 26 MT |
| Jumbo bag, no cage or pallet | 1,000 kg | Not possible | 20 bags / 20 MT |
| Jumbo bag, no cage or pallet | 1,200 kg | Not possible | 20 bags / 24 MT |
| Bitubag | 300 kg | 24 MT | Not possible |
| New steel drum | 180 kg | 110 drums / ~20 MT | 135 drums / 24.3 MT |
| New steel drum | 150 kg | 110 drums / 16.5 MT | 135 drums / 20.25 MT |
| Bulk truck tanker | — | 24 MT per tanker | — |
| Bulk sea vessel | — | 1,000 MT minimum | — |
Choosing between them. The caged jumbo bag is the usual format for large road projects — the cage lets bags stack safely and handle on a standard forklift. Without the cage, stacking in a 20′ box is not safe, so uncaged bags ship in 40′ containers only, at lower unit cost but requiring crane or heavy forklift at destination. The 300 kg bitubag is optimised for 20′ loading and reaches 24 MT in a single box, which makes it the choice where port access or freight routing favours 20′ containers.
Drums remain the most widely used export format worldwide. They allow on-site storage, controlled individual melting, and work with the drum melters available in most markets. The 150 kg drum is preferred where handling is manual — remote sites, smaller contractors, or anywhere without mechanical lifting.
Our minimum order is 100 MT, roughly four to six containers depending on packing. Mixed grades within one shipment are accepted provided each grade reaches a full container. For quantities above 1,000 MT, shipment by dedicated bitumen tanker vessel is available from Jebel Ali, Mersin or Iskenderun.
Storage and handling
| Process stage | Temperature | Notes |
|---|---|---|
| Tank storage | 130–150 °C | Do not hold above 160 °C for extended periods — it accelerates oxidation |
| HMA mixing plant | 150–165 °C | Aggregate must be dry and preheated to the same range |
| Loading into drums or bags | 150–170 °C | Seal containers immediately after filling |
| Compaction on site | 120–145 °C | Do not compact below 110 °C — risk of surface cracking |
| Flash point | min 232 °C | Per ASTM D92. All operations must stay well below this |
Store drums and bags in a dry, shaded area away from direct sunlight, moisture and open flame. Drums stay upright and fully sealed. Jumbo bags are not stacked more than two high unless caged. Maximum recommended shelf life is 12 months from production date under correct conditions — the shelf life and storage guide covers retest thresholds and what goes wrong when drums are stored on their side.
Technical specification
| Property | Method | Unit | Min | Max | Typical |
|---|---|---|---|---|---|
| Penetration @25 °C, 100 g, 5 s | ASTM D5 | dmm | 60 | 70 | 65 |
| Softening point (ring and ball) | ASTM D36 | °C | 49 | 56 | 52 |
| Ductility @25 °C | ASTM D113 | cm | 100 | — | >100 |
| Flash point (Cleveland open cup) | ASTM D92 | °C | 232 | — | ~260 |
| Specific gravity @25 °C | ASTM D70 | g/cm³ | 1.01 | 1.06 | 1.03 |
| Solubility in trichloroethylene | ASTM D2042 | wt % | 99.0 | — | >99.5 |
| Loss on heating (TFOT) @163 °C, 5 h | ASTM D6 | wt % | — | 0.2 | <0.1 |
| Drop in penetration after heating | ASTM D5 / D6 | % | — | 20 | <15 |
| Kinematic viscosity @135 °C | ASTM D2170 | cSt | 300 | — | ~370 |
| Absolute viscosity @60 °C | ASTM D2171 | Poise | 1,800 | — | ~2,200 |
| Spot test | AASHTO T102 | — | — | — | Negative |
Typical values are indicative. A batch certificate of analysis with the actual test results is issued before every shipment. Viscosity varies slightly with refinery source and crude origin.
Payment, inspection and documentation
Our standard terms are 50% by TT in advance, balance against a copy of the Bill of Lading. The advance secures production and loading; the balance falls due once the cargo is demonstrably on the water and documented. We do not work on letters of credit — bank charges and discrepancy risk end up in the per-tonne figure, and saying so plainly saves a week of negotiation.
Every shipment travels with a commercial invoice, packing list, bill of lading, certificate of origin, MSDS and the batch certificate of analysis. SGS, Bureau Veritas, Intertek or the surveyor named in your contract can attend loading for quality and quantity. Shipping documents are issued within three days of vessel departure. The export documentation guide sets out what each document does and where presentations usually fail.
Frequently asked questions about Bitumen 60/70
What does the penetration value of 60/70 mean?
It is the depth, in tenths of a millimetre, that a standard needle penetrates a bitumen sample at 25 °C under a 100 g load for five seconds, per ASTM D5. A value of 60 to 70 indicates a medium-hard binder — stiff enough to resist rutting in warm climates, flexible enough to absorb traffic fatigue. The lower the number, the harder the bitumen.
What is the minimum order quantity?
100 MT. Depending on packing, a 20′ container carries 16.5 to 24 MT and a 40′ container 20 to 26 MT, so 100 MT is roughly four to six containers. Mixed grades in one shipment are accepted provided each grade reaches a full container. For bulk vessel shipment the minimum is 1,000 MT.
What are your payment terms?
50% by TT in advance with the balance settled against a copy of the Bill of Lading. We do not work on letters of credit. The balance falls due only once the cargo is on the water and documented, so you are not paying in full against an undelivered shipment.
Which packing loads the most product per container?
For 40′ containers, the 1 MT jumbo bag with steel cage and pallet, at 26 bags for 26 MT. For 20′ containers, the 300 kg bitubag at 24 MT, which is the highest net load available in a 20′ box.
Can jumbo bags without a cage be loaded into a 20′ container?
No. Without the structural cage, bags cannot be stacked safely in a 20′ container. Both the 1 MT and 1.2 MT uncaged jumbo bags require a 40′ container: 1 MT bags load 20 bags for 20 MT, 1.2 MT bags load 20 bags for 24 MT.
Is a certificate of analysis provided?
Yes, with every shipment. It confirms penetration, softening point, ductility, flash point, specific gravity, solubility and loss on heating, tested to ASTM D946 and AASHTO M20, and it carries the lot number and production date rather than being a generic typical-values sheet.
What is the lead time and transit time?
Production and loading takes 7 to 14 business days after order confirmation. Indicative transit from Jebel Ali: East Africa 5 to 9 days, South Asia 7 to 12 days, Southeast Asia 12 to 18 days, West Africa 18 to 22 days. Shipping documents follow within three days of departure.
What is the density of Bitumen 60/70?
Specific gravity at 25 °C is 1.01 to 1.06 g/cm³ per ASTM D70, typically 1.03. At mixing temperature of 150 °C it falls to roughly 0.97 to 0.98 g/cm³. One metric ton occupies approximately 971 litres at 25 °C.
Is Bitumen 60/70 suitable for cold climates?
It is recommended where annual average pavement temperature is above 20 °C. Below an annual average of about 10 °C, softer grades such as 80/100 give better low-temperature flexibility and resistance to brittle fracture.
What is Bitumen 60/70 used for in waterproofing?
As the base raw material for bituminous primers, cold and hot-applied coatings, and as the base bitumen in SBS and APP modified membranes for roofing, bridge decks, tunnels and below-grade structures. For finished oxidized grades used directly in roofing, see oxidized bitumen.
What is the price of Bitumen 60/70?
It moves with crude and vacuum bottom, ocean freight, packing choice and destination, so a flat published number would not hold. Indicative levels are on our bitumen price page. Send quantity, packing, destination port and Incoterm and we issue a firm FOB, CFR or CIF quotation within one business day.
Which countries do you export Bitumen 60/70 to?
Over 40 markets including Kenya, Tanzania, Ethiopia, Nigeria, Ghana, Mozambique, Sudan, South Africa, Malaysia, Indonesia, Vietnam, Thailand, Sri Lanka, Bangladesh, Pakistan and Brazil. Country-level detail is in the global bitumen supply guide. Loading is from Jebel Ali, Mersin and Iskenderun.
Related grades and products
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Other penetration grades
40/50 for extreme heat and slow heavy loading, 80/100 for temperate and cold regions.
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Oxidized bitumen
Blown grades such as 85/25 and 115/15 for roofing, membranes and pipe coating.
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Emulsion and cutback
Emulsions for tack coats and slurry seals, cutbacks for prime coats and surface dressing.
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Modified binder
PMB where one unmodified grade cannot cover both the high and low temperature ends.
Request a quotation for Bitumen 60/70
Send us the quantity in MT, the packing format, the destination port and the Incoterm. We come back with a firm price, a production schedule and the documentation list for clearance within one business day. If a different grade suits your climate or traffic loading better than the one specified, we will say so.
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