One common method is to take a small amount of hot bitumen and observe how it flows when it is slowly stretched. This is not a replacement for laboratory testing, but it can serve as an initial field inspection before work continues.
To see how this simple inspection is performed, watch the Akademi Jalan & Aspal (AJA) video about the 10-second bitumen field check.
Why Should Bitumen Be Checked Before It Is Used?
On many projects, hot bitumen is used immediately after heating without any simple field inspection. In reality, checking its condition only takes about ten seconds.
According to Akademi Jalan & Aspal (AJA)’s explanation of the 10-second bitumen field check, bitumen that has begun to deteriorate may still look perfectly normal. It can remain black, hot, and visually unchanged.
- Why Should Bitumen Be Checked Before It Is Used?
- How Do You Perform the 10-Second Bitumen Field Check?
- What Can This Simple Field Check Tell You?
- 💡 Field Note
- Common Misconceptions About the 10-Second Bitumen Check
- ❌ “If the bitumen is still black, the quality must be fine.“
- ❌ “The 10-second check can replace laboratory testing.”
- 🎯 Key Takeaway About the 10-Second Bitumen Field Check
- Frequently Asked Questions (FAQ)
- Glossary
- Video

Because the appearance often stays the same, changes in the flow characteristics of the bitumen can easily go unnoticed.
If these changes are not recognized early, the bitumen may not bond to the aggregate as effectively, potentially affecting the long-term performance of the pavement.
How Do You Perform the 10-Second Bitumen Field Check?
According to Akademi Jalan & Aspal (AJA)’s guide to the 10-second bitumen field check, the inspection is simple.
- Take a small amount of hot bitumen.
- Slowly stretch the bitumen.
- Observe how the material flows.
If the bitumen flows smoothly and forms a continuous strand, it still shows characteristics commonly associated with good material condition.
However, if the bitumen breaks quickly, appears rough, or flows inconsistently, it may be an early indication that the material should be evaluated further.
To see the demonstration, watch the Akademi Jalan & Aspal (AJA) video about the 10-second bitumen field check.

What Can This Simple Field Check Tell You?
This quick inspection helps operators recognize early changes that may not yet be visible through appearance alone.
In Akademi Jalan & Aspal (AJA)’s discussion about the 10-second bitumen field check, the purpose of this inspection is to observe whether the flow behavior of the bitumen still appears normal or has started to change.
If the flow appears abnormal, the material should be evaluated further according to the project’s inspection procedures.
💡 Field Note
A simple inspection takes only a few seconds, but it may help identify early signs that the condition of the bitumen has changed before it is used. Detecting these signs early allows appropriate action to be taken before the work continues.
Catatan Lapangan
Common Misconceptions About the 10-Second Bitumen Check
❌ “If the bitumen is still black, the quality must be fine.“
Fact: According to Akademi Jalan & Aspal (AJA)’s explanation of the 10-second bitumen field check, visual appearance alone does not always reflect the actual condition of the material.
❌ “The 10-second check can replace laboratory testing.”
Fact: This method is intended only as an initial field inspection. It does not replace laboratory testing or any quality control procedures required by the project.
🎯 Key Takeaway About the 10-Second Bitumen Field Check
The 10-second field check helps identify early signs that the condition of the bitumen may have changed—it does not determine the final quality of the material.
Following Akademi Jalan & Aspal (AJA)'s guide to the 10-second bitumen field check, perform this simple inspection before using the material. If the flow appears abnormal, evaluate the material further according to the project's procedures.
To watch the demonstration, see the Akademi Jalan & Aspal (AJA) video about the 10-second bitumen field check, and follow AJA on YouTube, Instagram, TikTok, and Facebook for practical knowledge about asphalt materials and road construction.
Frequently Asked Questions (FAQ)
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Glossary
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