Though both materials may seem functionally alike, choosing between asphalt and concrete for your infrastructure projects can have considerable ramifications for your long-term costs and operations.
In this guide, we’re going to break down the key differences between asphalt and concrete, and their Australian-specific applications in roads, carparks, driveways and pavements.
Understanding Asphalt and Concrete
Before we get into their specific applications, let’s take a quick look at exactly what asphalt and concrete are:
Asphalt: Consisting of aggregate and sand with a bitumen binder, asphalt is flexible, waterproof, and capable of being laid in a wide variety of environments. It’s quick to install and cure, and roads made from it can often be used shortly after being laid.
Concrete: Made by combining cement and aggregates with water, which creates a solid mass, concrete has great compressive strength. However, it takes time to install and cure. Some concrete builds can take weeks to cure before they’re strong enough to be used as intended.per layers, introducing structural risks. Catching the warning signs early is your best shot at avoiding serious delays later on.
Cost Analysis for Australian Projects
Initial Installation Costs
When it comes to upfront costs, asphalt is your clear winner. On average, asphalt will generally be 30-40% of the cost for an equivalent amount of concrete during your initial installation.
The final cost of your asphalt or concrete supplies can be affected by multiple factors, including:
- Site preparation requirements.
- Access constraints.
- Size and volume of your build.
- Present-day material prices.
- Site-specific conditions (such as excavating, draining excess water, and other incidentals).
Though larger, commercial projects may have a higher cost, they generally have greater economies of scale, compared with small residential builds.
If you’re unsure of what pricing to expect for your asphalt or concrete build, contact Solve Civil. We’ll provide you with detailed pricing that’s tailored to your project’s specific needs.
Long-Term Cost of Ownership
When considering the choice between asphalt and concrete, it’s best to consider the future costs of each application over the term of your project’s lifespan. In general, you should expect your project to last for 20-30 years.
Though asphalt costs less than concrete initially, it requires more regular upkeep than concrete. Asphalt requires resealing once every 3 to 5 years to maintain its structural integrity, and may need resurfacing 15 to 20 years after being laid.
While concrete has a higher upfront cost, it requires minimal maintenance. The associated upkeep costs are significantly lower than asphalt over long periods. Concrete may require occasional joint resealing in order to maintain its strength.
Durability and Lifespan in Australian Conditions
Expected Service Life
Generally speaking, your asphalt pours have a service life of 15 to 20 years, provided you engage with consistent maintenance for them. With the right kind of resurfacing, you may be able to extend the lifespan of your asphalt to 25 years and beyond.
Meanwhile, concrete typically lasts between 30 and 50 years from its initial pour. With proper maintenance and resealing, some projects have been known to last over 50 years.
Before purchasing your materials, it’s important to note that the Australian climate can affect each of these materials differently. Regions with high temperatures can cause asphalt to soften, and it’s also vulnerable to standing water. In cold weather, however, asphalt is flexible and resistant to damage during freezing weather.
By contrast, concrete can withstand extreme temperatures and is resistant to water penetration and frost damage. Concrete is excellent for hot weather, but more vulnerable to freeze-thaw damage than asphalt.
Regardless of the material choice, proper drainage is a must to ensure both concrete and asphalt maintain their structural integrity.
Australian Climate Considerations
When choosing between asphalt and concrete for your carparks, driveways, footpaths, roads, and other projects, it’s important to understand the impact the local climate can have on your material.
Sydney/NSW: The hot summer weather in Sydney and parts of New South Wales can make choosing asphalt problematic, as it softens at temperatures consistently above 35 degrees Celsius. Meanwhile, the western parts of NSW can experience occasional frost that may make concrete driveways vulnerable, as concrete is more prone to freeze-thaw damage than asphalt.
The Snowy Mountains are worth making note of as well. It is the coldest region of Australia, and concrete laid there is much more vulnerable to cracking and freezing issues than other areas of the country.
Northern and Western Australia: The northern and western parts of Australia tend to have hotter weather than southern states, which in turn affects the performance of your chosen construction material. Concrete is better able to withstand high temperatures and is less vulnerable to damage than asphalt at similar temperatures.
Southern Australia: Areas such as Melbourne and Adelaide have a temperate climate. Their temperature can vary accordingly, with Melbourne’s cold winters dropping below 10 degrees Celsius, and its summers occasionally reaching highs of over 40 degrees Celsius. Humidity can also occur in these areas, which should be taken into account during the setting and curing process for your materials.
Wherever you’re building in Australia, UV exposure also needs to be taken into account. Asphalt requires protection from high levels of UV exposure, as this can cause bitumen to break down. Concrete, on the other hand, tends to have greater resistance against UV damage.
Traffic Load and Usage Patterns
While making the choice between asphalt and concrete, you will need to consider the required load bearing capacity and general usage of your material.
Light, infrequent traffic: When building a simple residential driveway or a car park, both concrete and asphalt can be suitable. Residential driveways and carparks tend to bear lighter loads and are used with less frequency than higher-traffic areas. In these instances, asphalt driveways can be more beneficial than concrete driveways.
Medium, semi-regular traffic: If you’re constructing a commercial carpark or laying material for suburban roads, the choice between asphalt and concrete can vary. This is because you need to account for traffic levels and when you can do repairs. Heavier traffic areas may benefit from concrete, but they also require larger maintenance windows than asphalt, which in turn can cause your site to be closed for longer periods of time.
Heavy, regular traffic: Major traffic areas such as main roads, industrial sites and airport runways have heavy, frequent loads from heavy trucks and other large vehicles. In these instances, concrete is generally the best option. Concrete handles higher loads than asphalt, as well as more regular/frequent usage. Though repairs can be more time-consuming for concrete, the structural benefits are a great advantage for heavy-load applications, such as mine sites.
Maintenance Requirements and Ongoing Costs
Asphalt and concrete are different materials with their own unique maintenance requirements. If you’re a developer, site manager, or in another position of overseeing a construction project, here are some of the repair considerations and costs you should take into account:
Asphalt Maintenance
Sealing: Generally speaking, you should reseal asphalt pours every 3 to 5 years. Not only does this help your asphalt last longer, it will also make it look better.
Repairs: When taking care of asphalt, you will need to occasionally fill in cracks that appear, as well as repair any potholes that occur. This helps ensure the safety of your carpark and road users. You’ll also need to resurface any worn areas to maintain safe operations.
Maintenance windows: Fixing asphalt issues is best done in cooler months, as this allows the bitumen to set with reduced risk of melting or deformation. As asphalt repairs take minimal time to carry out, they generally cause less disruption than concrete. Overall, however, the maintenance requirements of asphalt mean you’ll be making more frequent repairs.
Concrete Maintenance
Sealing: Concrete should be sealed at the joints every 5 to 7 years. This is to prevent water from penetrating your concrete build.
Repairs: Fixing concrete usually consists of replacing joints and repairing cracks. You may also need to carry out surface grinding to prevent any trip hazards that may arise post-concrete pour. In general, concrete requires minimal repairs, but they can take more time compared with asphalt.
Maintenance windows: Though concrete requires less maintenance overall than asphalt, its repairs are more costly and should be considered as part of your projected budget.
Operational Disruption Considerations
As part of your project, you need to factor in operational disruptions that will be caused by repairs. This is particularly relevant for frequently-used facilities such as schools, hospitals, and commercial properties.
When it comes to disrupted operations, asphalt is the clear winner. Repairing asphalt takes less time than concrete, and repaired parts of asphalt can be reopened for use within 24 to 48 hours.
By contrast, concrete repairs are more complex. Concrete can take between 7 and 14 days to reach full-strength, and more planning is required for the ensuing operational disruptions.
Australian Compliance and Approval Requirements
Before purchasing any materials, you must review the appropriate standards. In New South Wales, all civil construction projects require approval for development, and should meet the Australian Standards for Civil Construction. In particular, you should be familiar with the AS 2150 standard for asphalt and the AS 3600 standard for concrete.
Additionally, your build will require correct quality assurance, appropriate documentation, and compliance with road construction guidelines. You should also factor in the time it takes for your project to be approved, and how this can vary depending on its nature (i.e., council roads, private builds, and government facilities have different approval timelines).
Skilled and experienced head contractors can manage this entire process for approvals and compliance, and submit documentation from across the project’s stages, from design to handover. By doing this, clients never have to worry about the admin that comes with these projects.
Environmental Considerations and Sustainability
As with budgets and timelines, environmental impact can be another key consideration when choosing between asphalt and concrete.
Recyclability and Resource Use
Both asphalt and concrete benefit from being highly recyclable. Asphalt is petroleum-based, but it is capable of being reheated and reused. Concrete, meanwhile, has a higher carbon footprint initially, but is very long-lasting. Concrete can also be broken down and made into aggregate for other construction projects.
Between the two, their environmental sustainability is slightly varied, and should be looked at carefully before you make your choice.
Urban Heat Island Effect
Asphalt and concrete react to heat in different ways, and it’s largely down to their colour. Asphalt is black, which has a higher heat absorption level than concrete. This, in turn, can add to existing urban heat in an area.
Concrete, on the other hand, is a lighter colour, making it reflect larger amounts of heat, and helps reduce cooling loads for buildings in the vicinity.
Both asphalt and concrete have their positive and negative points in terms of environmental impact, and it’s worth taking the time to weigh these up for large and climate-conscious projects.
Material Performance Across Different Applications
Asphalt vs Concrete for Roads
| Criteria | Asphalt | Concrete |
| Best Suited For | Local roads, residential streets, rural roads | Arterial roads, heavy vehicle routes, major infrastructure |
| Typical Lifespan | 15-20 years | 30-40 years |
| Maintenance Requirements | Resealing every 3-5 years, regular crack filling | Joint sealing every 5-7 years, minimal intervention |
| Installation Timeline | Faster – operational in 2-3 days | Longer – 7-14 days before full traffic loads |
| Traffic Disruption | Lower initial disruption, more frequent maintenance closures | Higher initial disruption, fewer future closures |
| Repair Speed | Fast – patches cure in 24-48 hours | Slower – full strength in 7-14 days |
| Australian Climate Performance | Good flexibility in temperature changes | Excellent in hot climates, more resistant to UV |
| Load Bearing | Suitable for standard traffic, may rut under heavy loads | Superior for heavy vehicles and high-volume traffic |
| Design Flexibility | Limited – primarily black surface | Limited for roads – focus on functionality |
| Ideal Project Types | Council local roads, subdivision streets, resurfacing projects | Major road upgrades, industrial access, long-term infrastructure |
Asphalt vs Concrete for Carparks
| Criteria | Asphalt | Concrete |
| Best Suited For | Medium-traffic commercial carparks, temporary carparks | High-traffic facilities, multi-level carparks, premium developments |
| Typical Lifespan | 15-20 years with proper maintenance | 30-50 years |
| Maintenance Requirements | Resealing every 3-5 years, line marking refresh | Joint sealing every 5-7 years, line marking lasts longer |
| Installation Timeline | 3-5 days for typical project, usable in 48 hours | 7-14 days, 7 days before parking allowed |
| Traffic Disruption | Can stage construction for operational facilities | Requires more planning for operating facilities |
| Repair Speed | Fast repairs, minimal operational disruption | Slower repairs but less frequent |
| Australian Climate Performance | Can soften in extreme Sydney summer heat | Excellent heat resistance, cooler surface |
| Load Bearing | Suitable for cars and light commercial vehicles | Better for delivery trucks and heavy vehicle access |
| Design Flexibility | Limited colour options, standard appearance | Colour options, decorative finishes, exposed aggregate |
| Ideal Project Types | Shopping centres, office buildings, schools, hospitals | Corporate headquarters, premium retail, multi-storey structures |
Asphalt vs Concrete for Driveways and Access Roads
| Criteria | Asphalt | Concrete |
| Best Suited For | Budget-conscious projects, industrial access roads | Prestige developments, long-term commercial property |
| Typical Lifespan | 15-20 years | 30-50 years |
| Maintenance Requirements | Resealing every 3-5 years, crack repairs | Minimal – occasional cleaning and joint sealing |
| Installation Timeline | 2-3 days, ready to use in 24-48 hours | 3-5 days, 7 days before vehicle traffic |
| Traffic Disruption | Minimal – quick installation and reopening | Longer initial disruption, then maintenance-free |
| Repair Speed | Fast and cost-effective repairs | More involved repairs but rarely needed |
| Australian Climate Performance | Good for varied temperatures | Excellent in Sydney climate, handles heat well |
| Load Bearing | Suitable for standard vehicles and occasional heavy vehicles | Excellent for regular heavy vehicle access |
| Design Flexibility | Limited – black or dark grey surface | High – stamped patterns, colours, exposed aggregate, borders |
| Ideal Project Types | Industrial estates, commercial property access, service roads | Corporate office entrances, educational institutions, healthcare facilities |
Asphalt vs Concrete for Pedestrian Pavements and Paths
| Criteria | Asphalt | Concrete |
| Best Suited For | Recreational paths, park trails, cycling paths | Footpaths, disability access paths, commercial pedestrian areas |
| Typical Lifespan | 15-20 years for pedestrian-only use | 30-50 years |
| Maintenance Requirements | Resealing every 3-5 years, surface refresh | Joint sealing, very low maintenance |
| Installation Timeline | 1-2 days, ready for use in 24 hours | 2-3 days, 7 days before foot traffic |
| Traffic Disruption | Minimal – quick installation | Moderate – longer cure time required |
| Repair Speed | Quick patches for cracks or damage | Slower but more permanent repairs |
| Australian Climate Performance | Softens in extreme heat, may be uncomfortable | Stays cool, better for Australian summers |
| Load Bearing | Adequate for pedestrians, bicycles, light maintenance vehicles | Excellent – handles occasional vehicle traffic |
| Design Flexibility | Limited – smooth black surface | High – textured finishes, colours, decorative options, tactile indicators |
| Ideal Project Types | Parks, recreational trails, shared paths | Council footpaths, shopping precincts, campus pathways, DDA-compliant access |
Making the Right Choice
Questions to Guide Your Material Selection
- What is the budget for your project?
- How long do you have to complete your build?
- How long do you need your build to last?
- What are the expected traffic and usage patterns (minimal, medium, heavy)?
- Does your project have budget and maintenance access for the long-term?
- What regulatory and approval requirements need to be met?
- What kind of climate will your build face (constant heat, temperate, freezing weather, etc)?
When to Choose Asphalt
If your project is on a strict budget and you have limited planning horizons, then asphalt is an excellent choice for your project. It’s also beneficial for those who need fast builds and a quick turnaround for opening and reopening when maintenance occurs. Asphalt is also a good choice when laid in an area with consistent, ongoing repair access and capability, as well as being a temporary or medium-term infrastructure solution.
When to Choose Concrete
When you need something to last into the long term (i.e., 20 or more years), then concrete is the right choice for your project. It’s capable of handling heavy traffic and vehicles, and is also a great choice when you need to prioritise low upkeep and operational continuity. Concrete is also a suitable choice for developments with environmental and heat island considerations as a priority.
Frequently Asked Questions
Is asphalt or concrete cheaper in Australia?
Generally speaking, laying asphalt has a lower upfront cost than concrete, usually coming in at 30 to 40% less expensive. However, the lower maintenance costs of concrete over time can offset its higher initial installation cost. When making the choice between the two, you should request quotes that are specific to your project, which factor in both installation costs and future upkeep for your project.
How long does asphalt last compared to concrete?
When installing asphalt, you can expect an average lifespan of 15 to 20 years. With proper resurfacing, you may be able to gain an extended service life of over 25 years. Concrete, on the other hand, lasts between 30 and 50 years, with some projects having a lifespan of over 50 years with routine maintenance.
Which is better for the Australian climate?
The choice between asphalt and concrete for Australia’s climate depends on where your specific build is going to be. In the hotter climates of places such as Northern Australia, concrete is more favourable than asphalt. This is because it maintains its structural integrity at temperatures consistently above 35 degrees, whereas asphalt will begin to melt.
If you’re building in an area with temperature fluctuations, such as Melbourne, asphalt can be more flexible. It’s also less prone to frost damage.
Both asphalt and concrete can be suitable for use in Sydney and New South Wales, provided that you apply them to proper specifications and are consistent with quality upkeep.
Can I use asphalt for a commercial carpark?
Yes, you can. Asphalt is regularly used for commercial car parks. It’s beneficial as it has a lower cost, is easier to repair, and quicker to install. If your car park is in a high-traffic area or you’re engaged with future asset planning, then concrete should be considered.
How can I use asphalt and concrete at a mine site?
Both asphalt and concrete can be used for different purposes at mine sites. Asphalt is a good choice for light haul roads where dust control is important, as well as for areas where quick installation and repairs are important.
Concrete is used at mine sites for heavy-duty applications, including high-load haul roads, loading zones, and areas with high vibrations and breaking. It’s also beneficial to use concrete at mine sites that reach high temperatures, as it is heat-resistant.
Choosing the Right Material for Your Project
When picking either asphalt or concrete for your next project, your decision should be based on a combination of your budget, timeline, traffic, maintenance requirements, and the climate where your build is located. Both concrete and asphalt have applications where they outdo one another; your choice comes down to which material best supports your project requirements.
If you’re ever in doubt, we recommend consulting with professional civil contractors to guide your project. Don’t know which material is the right choice for your next build? Contact Solve Civil today for expert guidance that takes your site conditions, budget and long-term goals into account.