Asphalt is one of the most widely used surfacing materials across Australia due to its cost-efficiency, durability, and ease of installation. However, even the best asphalt surfaces can deteriorate earlier than expected when certain factors come into play. At Redcliffe Surfacing Solutions in Redcliffe, QLD, we understand the importance of identifying and addressing these issues before they compromise the integrity of your surface.
Below are the 10 most common causes of premature asphalt deterioration that property owners and asset managers should be aware of.
Poor Base Preparation
A strong asphalt surface starts from below. If the sub-base is not properly compacted or designed to carry expected loads, the surface is at risk of failure.
- Insufficient compaction
- Incorrect base materials
- Inadequate depth relative to traffic type
Without a stable foundation, asphalt is more prone to cracking and sinking.
Inadequate Drainage
Water is asphalt’s worst enemy. Standing or slow-draining water can penetrate the surface, weaken the sub-base, and accelerate degradation.
- Poor slope or grading
- Clogged or missing drains
- No provision for edge runoff
Proper drainage is essential to prolong the life of any bitumen or asphalt surface.
Traffic Overload
When a surface is subjected to heavier loads than it was designed for, damage is inevitable.
- Frequent use by heavy vehicles
- Overloaded trucks or machinery
- High turning pressure in tight areas
This leads to rutting, surface cracking, and eventual base failure.
UV Exposure
In Australia’s harsh climate, ultraviolet rays from the sun cause oxidation of the bitumen binder, making asphalt brittle over time.
- Faded colour and surface roughness
- Increased likelihood of cracking
- Accelerated ageing without regular sealing
Protective seal coats can help offset these effects when applied periodically.
Poor Quality Materials
Not all asphalt mixes are created equal. Using low-grade aggregates or incorrect bitumen content compromises strength and flexibility.
- Inconsistent performance
- Soft spots or weak areas
- Increased maintenance requirements
At Redcliffe Surfacing Solutions, we always use materials suited to local conditions.
Temperature Extremes
Repeated heating and cooling cycles cause expansion and contraction in the surface. This can lead to surface fatigue.
- Cracking from thermal movement
- Softening during heatwaves
- Surface separation in winter
These conditions are common in Queensland and should be factored into mix design.
Tree Roots and Vegetation
Encroaching tree roots can push up through the surface or displace the base layer beneath.
- Lifting or cracking near planted areas
- Uneven surface around root lines
- Moisture retention beneath the surface
Hardstand edging and root barriers can help mitigate this issue.
Oil and Fuel Spills
Petroleum products can weaken the bitumen binder, softening the asphalt and causing deformation.
- Surface erosion in high-traffic areas
- Damage in car parks or loading zones
- Staining and soft spots
Timely clean-up and protective coatings are key to preventing deterioration from contaminants.
Improper Compaction During Installation
If the surface is not compacted correctly during construction, the voids left behind will absorb water and degrade quickly.
- Premature potholes
- Uneven finish
- Reduced load-bearing capacity
Every layer must be compacted with the right equipment and technique to ensure a strong final surface.
Lack of Maintenance
Even well-installed asphalt requires occasional attention. Ignoring small issues allows them to grow into expensive repairs.
- Cracks that go unsealed
- Drainage systems that clog
- Surface oxidation without resealing
Preventative maintenance extends the lifespan significantly.
Conclusion
Premature asphalt deterioration is rarely due to a single issue—it’s often a combination of factors that build up over time. At Redcliffe Surfacing Solutions in Redcliffe, we take a proactive, well-engineered approach to asphalt and bitumen surfacing. From proper base construction and drainage to sealing and maintenance advice, we help our clients avoid these common pitfalls and get the best possible value from their investment.
If you’re seeing signs of wear or planning a new surface, contact Redcliffe Surfacing Solutions to ensure your project is built to last.
Call us on: 07 3113 9873
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