Bitumen Supply to Ghana: Grades, Tema and Takoradi

Ghana faces the Gulf of Guinea between Côte d’Ivoire to the west, Burkina Faso to the north and Togo to the east. The coastline is commonly given as roughly 540 km, and the country runs further north to south than east to west, from Cape Three Points at about four and a half degrees north to the Burkina Faso frontier at about eleven degrees. Construction demand concentrates in a southern triangle: Accra and the Tema industrial area at the eastern end of the coast, Sekondi-Takoradi at the western end, and Kumasi in the forest belt roughly 250 km inland, with the mining districts of the Western and Ashanti regions and the corridor traffic to the north layered on top. That geography, and not any statement about market size, is what makes Ghana a different commercial problem from its large neighbour: the demand is close to the sea, the roads between the demand and the sea are short, and the parcels are correspondingly modest.

Why the two-port structure matters more than the port count

Plenty of countries have a second port, and in most of them it is a fallback for when the main gateway is congested. In Ghana the second port is a genuine alternative with its own hinterland, and choosing between them is a real decision made from the destination rather than from the sailing schedule. Both are deep-water harbours operated by the statutory Ghana Ports and Harbours Authority. Tema, about 30 km east of Accra, was opened in 1962 as an artificial harbour with an industrial township built around it, and is the principal container and general cargo gateway as well as the head of the trunk road running north. Takoradi, in the Western Region, opened in 1928 as the country’s first deep-water harbour and grew up around bulk export traffic, and since offshore production began in the fields off the Western Region coast in 2010 it has also served as the onshore support base for the offshore industry.

So a Ghanaian enquiry carries a question a single-port market does not: which gateway is the delivery point actually behind. For a project in Tarkwa the answer is obvious. For Kumasi it is genuinely close, and the closeness is the point — on road distance Takoradi is nearer by a few tens of kilometres, while Tema usually offers the wider choice of sailings. That is a comparison to be made rather than assumed.

The inland legs are short, and that is the commercial fact of this market

Take the rough road distances in order. Accra is about 30 km from Tema, on a motorway alignment. Cape Coast and the central coastal towns are within about 90 km of Takoradi, and Tarkwa and the western mining belt within about 60 to 90 km. Kumasi is roughly 240 km from Takoradi and roughly 270 km from Tema. Even Tamale, the principal northern city, is of the order of 600 km from Tema. The whole domestic market therefore sits inside a radius that in many African markets would only get a cargo out of the port hinterland.

For a commodity as heavy and as low in value density as binder, that changes the arithmetic in a specific direction. Inland haulage is a modest share of landed cost here rather than the dominant one, which means the costs that do move the number are the ones attached to the packing and the handling: the drums, the container, the stuffing and stripping, and the number of times the cargo is touched. A supply plan copied from a Sahel routing over-engineers a Ghanaian delivery and pays for protection the cargo does not need; a plan that ignores drum quality because the leg is short makes the opposite mistake, because a humid coast is hard on steel.

Small and containerised parcels are ordinary here

The second structural fact follows from the first. Because the buyers are contractors and asphalt plants of moderate size working on project packages rather than national programmes bought in one go, the working unit in Ghana is the 20' container, and part-container quantities consolidated with other cargo are ordinary rather than exceptional. The loading arithmetic is set out in the packing section below. Two things follow for a supplier: an offer structure that only works above a large minimum parcel does not fit this market, and a sealed box can often be trucked inland and stripped at the receiving yard rather than unpacked at the port — which saves a handling and moves the point at which the drum count and drum condition are established.

What this page does not tell you

It does not state that any port, berth, terminal, road, crossing, railway or lake service is open today, running to a schedule, equipped for this commodity or accepting a particular packing. Geography is stable and is described here; operating status changes constantly and belongs to a freight forwarder who is accountable for it. It gives no transit times in days, no freight rates, no vessel or vehicle capacities as fact, no duty or tax rates and no prices. It names no haulier, forwarder, terminal operator, refinery, shipping line or client, claims no presence, office, agency or shipping history in Ghana, and claims no relationship with any body or facility named here as geography. Road distances are rounded orientation figures for planning conversation, not routing data. It states no position on any licensing or trade-restriction question; a buyer in cross-border trade must obtain independent legal and compliance advice. It does not state that any pre-export conformity or inspection programme is currently in force for this product, does not state any such programme’s product scope, and names no appointed inspection body — those are questions for a licensed customs broker in Ghana, dated, before contracting. And it quotes no Ghanaian national standard designation or specification limit for paving bitumen, for the reason set out below: the requirement that binds a shipment is the one the tender document incorporates, and a number written into a compliance box from memory is a false compliance claim sitting inside a contract.

Tema: the container gateway and the head of the road north

Tema is the default and there are good reasons for it. It is the country’s principal container and general cargo port, it sits about 30 km from the largest concentration of demand in the country, it is linked to Accra by motorway, and it stands at the foot of the trunk road that runs north through Kumasi and Tamale to the frontier at Paga. A deep-water container terminal was developed there under concession with its first phase entering service in 2019, which is the sort of investment that tends to concentrate liner calls, and liner choice is itself a commercial variable for a buyer taking modest parcels: more sailings means more chances to move a container without waiting for a specific service.

For a bitumen buyer the attractions are three: the largest demand centre in the country is next door, the northern corridor starts here so a cargo continuing north does not have to traverse the country sideways first, and containerised handling is the port’s ordinary business, which matters when the cargo is 80 drums in a box. The counterpart is that Tema shares its road approaches with the heaviest urban traffic in Ghana, and congestion on the last few kilometres is a real cost that appears on no freight quotation.

Takoradi: the bulk harbour, the Western Region and the western approach inland

Takoradi is the older harbour, opened in 1928, and its character comes from what it was built to move: minerals and agricultural bulk outward rather than containers inward. Manganese from Nsuta and bauxite from Awaso, cocoa and timber established it, and since offshore production began in the fields off the Western Region coast in 2010 it has carried onshore support traffic for offshore operations as ordinary business. That matters for a practical reason: a port accustomed to project cargo, heavy lifts and industrial consignments has handling practices built around cargo that is not a standard container.

Its real advantage is positional. Takoradi removes the coastal road leg for anything in the Western Region, and the Western Region is where a disproportionate share of Ghana’s heavy-vehicle pavement demand sits — mining access and haul-adjacent roads around Tarkwa and Prestea, port and industrial hardstanding, and the trunk roads carrying loaded mineral traffic to the harbour. It is also, on road distance, the nearer of the two ports to Kumasi, and materially nearer to Obuasi and the southern Ashanti mining district. For a contractor working the western half of the country, routing through Tema means driving past the sea for two hundred kilometres before turning inland.

How to choose, in one question

The decision is made by asking where the material is actually being laid, and then it usually makes itself:

• Greater Accra, Tema, the eastern coast, the Volta Region, the eastern corridor and anything north of Kumasi — Tema. It is closer, it is on the right side of the country, and the northern trunk road begins there.
• The Western Region, the western mining belt, the central coastal towns and southern Ashanti — Takoradi. Routing these through Tema imports a coastal road haul that buys nothing.
• Kumasi and the Ashanti core — genuinely open. Takoradi is nearer on distance; Tema usually offers more sailings and more consolidation opportunities for a part-container parcel. Ask a forwarder to price both, and compare landed cost at the site rather than freight to the port.
• A cargo that is not staying in Ghana — almost always Tema, because the northern corridor starts there, but the choice is then subordinate to the customs question dealt with in the documents section: a transit is not an import with a different address on it.

The short leg, and why it changes the arithmetic rather than just the number

On most markets, bitumen’s weight and low value density make inland haulage the dominant variable, which is why supply plans for deep-interior destinations are built around minimising road kilometres. Ghana inverts the emphasis, and what it promotes to the top of the list is everything attached to the packing: the cost of the drums, the cost of the container, the labour of stuffing and stripping, the handling losses, and the number of times the cargo changes hands. On a two-thousand-kilometre inland routing those costs vanish into a much larger freight number. On a thirty-kilometre delivery they are visible, and a buyer who has not thought about them is either paying for protection the cargo does not need or buying the cheapest available drum on a coast that punishes cheap steel.

The second consequence is that the container can usually go to the site. Where the receiving yard has hardstanding and a forklift, a sealed box can be trucked inland and stripped there rather than unpacked at the port, which removes a full handling cycle and the drum damage that goes with it. That also moves the point at which the drum count and condition are established, so the contract has to say plainly where the count is taken, who witnesses it, and what happens if the seal is intact but the count is not. A short leg makes container-to-site delivery attractive; it does not make it self-policing.

Container arithmetic, and the weight limit that bites at the gate rather than at sea

These are the site-standard loading figures and they are the ones to build a Ghanaian order on:

• 150 kg new steel drums: 80 drums and 12 MT in a 20' FCL.
• 180 kg new steel drums: 80 drums and 14.4 MT in a 20' FCL.
• 185 kg new steel drums: 80 drums and 14.8 MT in a 20' FCL.
• 1 MT jumbo or poly bags: 20 bags and 20 MT in a 20' FCL.

Use them to fix the drum count, the packing cost per tonne and the number of boxes on the bill of lading. Then apply the Ghanaian qualification, which is a road one rather than a marine one. A 20 MT payload in jumbo bags, plus the tare of the container and the trailer, produces a gross combination weight that may or may not be lawful on the road leg you intend to use, and Ghana operates axle-load control on its trunk network with weighing stations on the main corridors. The regional bodies have pursued harmonised axle-load and gross-vehicle-weight limits along West African corridors for years. This page states no limit and no payload figure, because an invented one is worse than none: ask the forwarder what the lawful combination weight is on the specific alignment, and size the box accordingly. A heavily loaded container that cannot legally leave the port gate is a more expensive problem than a lightly loaded one.

A related point that only shows up on short legs: the drum weight changes how many boxes you handle for a given tonnage. Two hundred tonnes in 150 kg drums is roughly seventeen containers; the same tonnage in 185 kg drums is roughly fourteen. The heavier drum cuts box count and handling cycles; the lighter drum is easier for a small crew to move by hand at a site without a forklift, which is not a trivial consideration on feeder-road and district works.

Small parcels: why part-container quantities are ordinary in Ghana

A compact market with contractors of moderate size, work let in project packages and short port-to-site legs does not buy binder by the shipload. It orders what the current package needs and orders again, which produces two patterns a supplier should expect rather than resist: the single-container order, quoted as a normal transaction, and the part-container quantity consolidated with other cargo, which is practical for drummed bitumen in a way it is not for bulk. Both reward a supplier who can produce a clean batch Certificate of Analysis for a small lot, because a buyer taking twelve tonnes has the same specification exposure as one taking twelve hundred and less appetite for a dispute.

Bulk in a heated tanker: where it works here, and where it does not

The short leg makes bulk more interesting in Ghana than in most markets on this side of the map. Over a long land haul a heated road tanker is a temperature-management problem; over 30 km from Tema to an Accra plant, or 60 km from Takoradi to a Western Region plant, it is not, and the packaging cost, the drum handling and the empty-drum disposal problem all disappear at once.

The condition sits entirely at the receiving end and it is not a formality. The plant needs heated storage of adequate capacity, a compatible discharge connection, a pump, and the ability to take the whole load promptly. Where those are absent, or the delivery is to a district works site or a mining access road, or the material has to wait before use, new steel drums remain the correct answer and no freight arithmetic changes that: a drum needs no heated storage, can be moved without a terminal crane, can sit through a shutdown, can be heated one unit at a time, can be delivered in partial loads, and fails locally, whereas a compromised bulk load costs the consignment.

One regulatory line has to be settled before a tanker is booked rather than after. Where the product is offered for carriage above 100 °C it falls within UN 3257, elevated temperature liquid, n.o.s., Class 9 under the UN model regulations from which national and regional road transport rules are drawn, while packed bitumen moving at ambient temperature is treated differently. Whether that entry is engaged on your movement, and what marking, documentation, equipment and driver qualification follow, is a question for the carrier and the forwarder.

The delivery term follows the mode, and the named place has to be a place

Under Incoterms 2020, FAS, FOB, CFR and CIF are rules for sea and inland waterway transport. They work for a parcel discharging at Tema or Takoradi and they have no coherent meaning for a truck delivering to a plant in Kumasi, where applying one leaves the point at which cost and risk pass undefined until the two readings collide over a damaged load. The rules that work with any mode are FCA, CPT, CIP, DAP, DPU and DDP, and each names a place.

Three errors recur here. Naming a country instead of a place: DAP Ghana is not a delivery term, whereas DAP followed by a named plant, yard or project site is. Naming a port when the deal is really to site: where the inland leg is short the temptation to treat CFR Tema as though it were delivery to Accra is strong, and it is exactly the ambiguity that produces an argument over who pays demurrage and who pays the haulage. And agreeing DDP casually, which puts import clearance and charges on the seller and is heavier than it looks, particularly where a conformity requirement may attach to the goods. Settle the port, then the site, then the rule, then who owns the container once it leaves the terminal gate.

The idiom is penetration grading

Where a Ghanaian road package carries a written technical specification, the bituminous section is normally built on penetration-graded paving bitumen: grades named as penetration bands, acceptance controlled by a short list of properties, and the test methods cited from the ASTM or the EN families. An offer written as 60/70 or 50/70 is therefore immediately readable, and none of the translation problem that a viscosity-graded market creates arises here.

One notational point saves correspondence. AASHTO M20 and ASTM D946 write penetration grades with a hyphen — 40-50, 60-70, 85-100 — while the export trade writes them with a slash. Those are the same bands measured by the same needle test at 25 °C, so a clause naming grade 60-70 is not naming something different from a 60/70 offer. The notation is not the trap; the trap is described two sections below.

The two authorities worth naming, and how far each can honestly be named

Two institutions come up on every Ghanaian enquiry and both can be named as institutions.

The first is the Ghana Standards Authority, the national standards body, constituted in the early 1970s as the Ghana Standards Board and later renamed. It carries the functions a national standards body normally carries — developing and publishing national standards, metrology, certification and conformity assessment of goods including imports. Pre-export conformity programmes in this region are normally administered through a body of that kind and operated by separately appointed inspection companies, and the mechanism is set out in the documents section below. Whether such a programme is in force for this product on your shipment date, what its current product scope is, and which bodies are currently appointed to operate it are not stated anywhere on this page, because all three change; that is a question for a licensed customs broker in Ghana.

The second is the Ghana Highway Authority, established in the mid-1970s and responsible for the trunk road network under the ministry holding the roads and highways portfolio, alongside separate departments for urban roads and feeder roads. The relevant fact for a supplier is that the Authority maintains a standard specification for road and bridge works which trunk road contracts commonly incorporate by reference, and which carries the bituminous materials clauses a tender will hold you to. Urban and feeder road packages, and works let by metropolitan, municipal and district assemblies or by donor-financed programmes, may incorporate the same document, a variant of it, or a consultant’s own specification.

What this page will not do is print a Ghanaian standard designation or limit and invite you to quote against it. The specification that binds a package is the edition the tender incorporates and editions differ; practice is not uniform across trunk, urban, feeder and donor-financed works; and a designation written into a compliance box from memory is a false compliance claim inside a contract, which is a far worse position than an empty box with an honest sentence beside it. Ask the buyer for the binder clause. It is a normal request and a serious buyer will send it.

The band arithmetic: 80/100 is not 85-100, and neither of them is 70/100

This is the specific error that produces disputes on West African business, and it is worth setting out in full because it is invisible until a certificate is rejected. Three designations sit in the same general region of the penetration scale and they are three different windows:

• 80/100 is the common export designation and implies a band of 80 to 100 dmm — a 20 dmm window.
• 85-100 is the grade in ASTM D946 and AASHTO M20 and implies 85 to 100 dmm — a 15 dmm window.
• 70/100 is the band in EN 12591 and implies 70 to 100 dmm — a 30 dmm window.

Read the containment carefully, because traders routinely read it in both directions when it only runs in one. Every batch that genuinely meets 85-100 also satisfies the penetration line of 80/100 and of 70/100, because the narrowest window sits inside both wider ones. The converse fails: material correctly supplied against EN 70/100 may measure 74 dmm, which is out of 80/100 and well out of 85-100; material correctly supplied against 80/100 may measure 82 dmm, which is out of 85-100. Offering the narrower grade against the wider requirement is a proposition worth discussing on the penetration line; accepting the wider grade against the narrower requirement is accepting a band you did not buy.

The same asymmetry runs one step harder. ASTM D946 grade 60-70 has a 10 dmm window and sits wholly inside the EN 12591 band 50/70, which is 20 dmm wide. That makes a 60/70 cargo a plausible candidate against a 50/70 clause and makes a 50/70 cargo an unreliable answer to a 60/70 order. And in neither direction does an overlapping penetration band amount to equivalence, because penetration is one line on a requirement table and the tables differ in what else they control and in which ageing procedure they name.

The band is not a point, and on a mining road that matters

Two cargoes can both be genuine 60/70 and behave differently under a loaded haul truck. One measures 61 dmm with a softening point near 56 °C; the other measures 69 dmm with a softening point near 49 °C. Both are in grade. Both pass a conformity check against the band. On a Tarkwa access road carrying axle loads well above highway traffic, on a grade, with vehicles slowing and standing, they are not the same material. The practical responses, in order of usefulness:

• Require measured values on the Certificate of Analysis, not the band. A certificate that reprints the specification range for every consignment tells you nothing about the batch you are buying.
• Agree a narrower contractual window in writing where the design case is tight: a specific penetration and softening point range for this shipment. The grade name does not change, the tender is still satisfied, and you acquire a contractual right to the material you actually need.
• Read the softening point as hard as the penetration. Ring and ball to ASTM D36 or EN 1427 speaks more directly to behaviour at service temperature than the needle test does, and it is the line most often skimmed on an export offer.
• Where the tender permits it, consider stepping to a harder grade rather than policing the top of a softer one. A hard grade properly specified is a cleaner answer than a soft grade tightly supervised.

Moisture: the Ghanaian question a binder certificate does not answer

On the wet south-western coast and through the forest belt, the durability problem is not that the binder is too soft. It is that water gets into the mix, breaks the bond between binder and aggregate and strips the film off the stone, and the pavement ravels for reasons that have nothing to do with the penetration band. This has to be said plainly, because it is where a binder supplier can most easily overclaim: moisture damage is controlled principally at mix design level, not in the binder specification, through aggregate selection and mineralogy, void content, compaction, drainage and, where required, an adhesion promoter or hydrated lime.

The tests that verify it are mix-level tests and have to be commissioned specifically: retained tensile strength under AASHTO T283 or ASTM D4867, boiling water stripping of a coated aggregate under ASTM D3625, and in the European family affinity under EN 12697-11 and water sensitivity under EN 12697-12. Ghana’s common road aggregates include siliceous rock types, which are generally less favourable to bitumen adhesion than calcareous ones, so this is a live question rather than a formality on many packages. None of these results can be inferred from a paving-grade Certificate of Analysis. What a supplier can honestly do is supply a binder that meets the clause, disclose whether any additive is present, and tell the buyer where the actual control sits.

If a performance grade is named

Some donor-financed and consultant-designed packages are written in the performance-graded idiom, and a performance grade cannot be derived from a penetration certificate. It requires dynamic shear rheometer testing on unaged and short-term aged binder (AASHTO T315), pressure ageing vessel conditioning (AASHTO R28), bending beam rheometer testing of the aged residue for the low-temperature grade (AASHTO T313) and rotational viscosity (AASHTO T316), against the specification framework of AASHTO M320 or its ASTM counterpart ASTM D6373. Where the clause is written against multiple stress creep recovery, add AASHTO T350 and the grading framework of AASHTO M332, in which the traffic level is carried in the grade name as S, H, V or E for standard, heavy, very heavy and extremely heavy loading.

Note the Ghanaian shape of that problem, because it is the opposite of a cold market’s. The high-temperature designation and, where it applies, the traffic-level letter are the demanding half here, and on heavily loaded corridor and mining pavement they commonly point toward polymer modification rather than toward a harder straight-run binder. The low-temperature designation is not a binding constraint anywhere in the country. Establish at enquiry stage whether the data exists for the grade named, because it is the half an exporter working in the penetration idiom is least likely to hold.

What a usable Certificate of Analysis looks like on this market

• Batch or lot identification tying the certificate to the drums actually loaded, not a typical-values data sheet reissued for every consignment. On a market that buys single containers this matters more, not less: a small parcel deserves the same traceability as a large one.
• Penetration at 25 °C and softening point as measured values, each with the ASTM or EN designation printed beside the result, and each read against any narrower contractual window agreed for the shipment.
• Ductility, flash point, solubility, specific gravity and water content, with methods named.
• The ageing result in the form the tender asks for, labelled with the procedure actually run: the thin-film oven test of ASTM D1754 and the rolling thin-film oven test of ASTM D2872 or EN 12607-1 are different exposures and their results are not interchangeable. Export certificates carry the thin-film oven test by default; if the clause controls the rolling procedure, add it before the batch is certified rather than after the container is fixed.
• Where a modified binder is supplied, elastic recovery and storage stability with their methods — EN 13398 and EN 13399, or elastic recovery by ductilometer under ASTM D6084 — and the modification type, not merely the word polymer.
• Where the mix design depends on it, rotational viscosity to ASTM D4402, which is what mixing and compaction temperature ranges are derived from. It is not on a standard penetration-grade export sheet, so ask in advance if the plant needs it.

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