City Road Grade Bitumen
Last updated: 2026-09-30
City Road Grade Bitumen
City road grade bitumen is a penetration-grade or viscosity-grade binder that meets municipal paving specifications, most commonly 60/70 penetration grade (ASTM D946 / EN 12591) or VG-30 (IS 73) for hot-mix asphalt wearing courses. Typical municipal surface courses consume 5.5–6.5% bitumen by weight of mix, translating to roughly 55–65 kg of binder per tonne of asphalt, at an indicative export price of USD 430–520 per metric tonne FOB (60/70 grade, bulk, 2025 levels). Delivery lead time for a 500-tonne municipal order is generally 10–21 days depending on port of origin and vessel schedule.
What Is City Road Grade Bitumen?
City road grade bitumen is the binder specified for urban roads, intersections, residential streets, and municipal arterials where traffic loads are moderate to heavy but design speeds are low. Unlike highway-grade polymer-modified bitumen (PMB), city road grade is usually unmodified penetration or viscosity grade, selected for workability, compaction window, and cost efficiency.
Key specifications of common city road grades:
| Parameter | 60/70 Pen Grade | VG-30 (IS 73) | 80/100 Pen Grade |
|---|---|---|---|
| Penetration @ 25°C (0.1 mm) | 60–70 | 45 min | 80–100 |
| Softening point (°C) | 49–56 | 47 min | 45–52 |
| Viscosity @ 60°C (Poise) | 2000–4000 | 2400–3600 | 1200–2400 |
| Flash point (°C, min) | 232 | 220 | 220 |
| Solubility in TCE (%, min) | 99.0 | 99.0 | 99.0 |
| Typical use | Urban wearing course | Heavy urban arterial | Residential streets |
| Indicative FOB price (USD/MT) | 430–520 | 450–540 | 420–490 |
Where each grade fits:
- 60/70 pen — standard municipal wearing course in tropical and temperate climates; the default "city road grade" in most tender documents.
- VG-30 — Indian subcontinent standard for urban arterials; higher viscosity for hot climates and stop-start traffic.
- 80/100 pen — lighter traffic, colder climates where flexibility at low temperature matters more than rutting resistance.
- 40/50 pen — heavy-duty urban intersections and bus lanes where rutting is the primary failure mode.
Performance Comparison: City Road vs Highway Grade
The table below compares city road grade bitumen with polymer-modified and highway-grade binders on the metrics that matter for municipal procurement.
| Metric | 60/70 Pen (City Road) | PMB-40 (Highway) | Delta |
|---|---|---|---|
| Cost per MT (USD, FOB) | 430–520 | 620–780 | +45–50% |
| Mixing temperature (°C) | 150–160 | 160–175 | +10–15°C |
| Rutting resistance (DS @ 60°C) | 800–1,500 passes/mm | 3,000–6,000 passes/mm | +250–300% |
| Fatigue life (cycles to failure) | 1.0x baseline | 2.5–3.5x baseline | +150–250% |
| Service life (urban arterial) | 7–10 years | 12–15 years | +5 years |
| Recyclability | High (100% RAP capable) | Moderate | — |
| Storage stability | Excellent | Requires agitation | — |
Practical implications:
- City roads fail mainly by rutting at intersections and bus stops, not by fatigue cracking — so the marginal benefit of PMB is concentrated at specific locations rather than whole corridors.
- A 500-tonne municipal order at 60/70 grade costs roughly USD 215,000–260,000, versus USD 310,000–390,000 for PMB — a saving of USD 95,000–130,000 per order.
- For roads with design traffic below 10 million standard axles (MSA), 60/70 pen delivers adequate performance at materially lower cost.
Specifications by Region: A Procurement Reference
Municipal tenders reference different standards depending on jurisdiction. The table maps the most common city road grades across major markets.
| Region | Standard | Common City Grade | Equivalent |
|---|---|---|---|
| India | IS 73 | VG-30 | ~60/70 pen |
| USA | ASTM D946 / AASHTO M20 | PG 64-22 | ~60/70 pen |
| EU | EN 12591 | 50/70 pen | ~60/70 pen |
| Middle East | Gulf specs | 60/70 pen | — |
| West Africa | BS 3690 / EN 12591 | 60/70 pen | — |
| Southeast Asia | AS 2008 | Class 170 / 320 | ~80/100 pen |
Procurement notes:
- PG 64-22 (Superpave) is the functional equivalent of 60/70 pen for most urban climates and is increasingly specified in US municipal work.
- Class 320 (Australian) is softer than 60/70 and suits warmer climates where rutting risk is managed by aggregate gradation rather than binder stiffness.
- Always confirm penetration at 25°C, softening point, and viscosity at 60°C in the pre-shipment certificate — these three parameters drive 90% of field performance disputes.
Volume, Packaging, and Logistics
City road projects consume binder in predictable ratios. Use the table below to convert paving area into bitumen tonnage for budgeting.
| Road Type | Layer | Binder Content (% by weight) | Binder per m² (kg) | Binder per km (tonnes, 7 m width) |
|---|---|---|---|---|
| Residential street | 40 mm wearing course | 5.5–6.0 | 5.0–5.5 | 35–39 |
| Urban arterial | 50 mm wearing course | 5.8–6.2 | 6.5–7.0 | 46–49 |
| Intersection / bus lane | 60 mm wearing course | 6.0–6.5 | 8.5–9.0 | 60–63 |
| Footpath / cycleway | 30 mm wearing course | 5.5–6.0 | 3.5–4.0 | 25–28 |
Packaging options and their trade-offs:
- Bulk (bitutankers / ISO tanks) — lowest unit cost, USD 430–470/MT; requires heated storage at 150–160°C and a discharge pump. Best for orders above 200 MT.
- New steel drums (150–182 kg) — USD 470–520/MT; suitable for smaller municipalities without heated tanks; drum disposal is a cost.
- Polymer-lined jumbo bags (1 MT) — USD 490–540/MT; emerging option for remote sites; requires melting facility.
Indicative logistics timeline (500 MT order):
| Stage | Duration |
|---|---|
| Order confirmation and LC | 2–3 days |
| Product availability and testing | 3–5 days |
| Loading and port formalities | 2–4 days |
| Ocean transit | 5–14 days |
| Discharge and inland delivery | 3–7 days |
| Total | 10–21 days |
Quality Tests and Acceptance Criteria
Municipal engineers should require the following tests on every batch. Rejection rates on non-compliant cargo run 3–8% in unverified supply chains — testing is the cheapest insurance available.
| Test | Method | Acceptance Criteria (60/70) | Frequency |
|---|---|---|---|
| Penetration @ 25°C | ASTM D5 / IS 1203 | 60–70 (0.1 mm) | Per batch |
| Softening point | ASTM D36 / IS 1205 | 49–56°C | Per batch |
| Viscosity @ 60°C | ASTM D2171 | 2000–4000 Poise | Per batch |
| Flash point | ASTM D92 | ≥232°C | Per batch |
| Solubility | ASTM D2042 | ≥99.0% | Per batch |
| Spot test | AASHTO T102 | Negative | Per batch |
| Thin film oven test (TFOT) | ASTM D1754 | Pen retention ≥55% | Per shipment |
Red flags in supplier documentation:
- Penetration and softening point reported as a single combined value — legitimate labs report each separately.
- Viscosity at 60°C outside 2000–4000 Poise for 60/70 grade.
- Missing TFOT or RTFOT aging data — required to predict field hardening.
- Certificates issued more than 30 days before shipment date.
Frequently Asked Questions
What is the difference between city road grade bitumen and highway grade bitumen?
City road grade bitumen is typically unmodified 60/70 penetration grade or VG-30, optimized for workability and cost, while highway grade is usually polymer-modified (PMB-40 or higher) for greater rutting and fatigue resistance. City roads with design traffic under 10 MSA perform adequately on 60/70 pen at 30–40% lower cost.
How much bitumen is needed per kilometer of city road?
A 7-meter-wide urban arterial with a 50 mm wearing course requires approximately 46–49 tonnes of bitumen per kilometer, assuming 5.8–6.2% binder content by mix weight. Residential streets of the same width require 35–39 tonnes per kilometer.
What is the current price of 60/70 city road grade bitumen?
Indicative FOB pricing for bulk 60/70 penetration grade bitumen in 2025 is USD 430–520 per metric tonne, with drummed material at USD 470–520/MT. Prices vary by origin, packaging, order volume, and Incoterms.
Which grade is best for hot climates?
For hot climates, VG-30 or 40/50 penetration grade is preferred because higher stiffness resists rutting at intersections and bus stops. In Gulf and South Asian conditions, 60/70 pen can soften excessively under sustained 45°C+ pavement temperatures.
How long does delivery take for a 500-tonne municipal order?
A 500-tonne order typically ships in 10–21 days from order confirmation to site delivery, covering LC issuance, testing, loading, ocean transit, and inland transport. Bulk tanker shipments clear faster than drummed cargo.
Calculate Your City Road Bitumen Cost Instantly
Stop guessing at binder budgets. Use the 6Tar cost calculator to convert your road length, width, layer thickness, and binder content into an exact tonnage and landed cost — updated with current FOB and freight rates.
What you get:
- Instant tonne conversion from paving area
- Live price comparison across 60/70, VG-30, and PG 64-22 grades
- Packaging cost differential (bulk vs drum vs jumbo bag)
- Delivery timeline by port of origin
Run your numbers now at 6Tar → [6Tar Cost Calculator]
For bulk quotations on 60/70, VG-30, or PG 64-22 city road grade bitumen, contact the 6Tar export desk with your tonnage, port of discharge, and required Incoterms.