For compaction of foundation layers
In-situ density measurements are used to assess the compaction of sand layers and foundation materials directly on site. These measurements provide insight into the quality of the work performed.
Depending on the project requirements, either the sand replacement method or the nuclear measurement method is used. This provides you with reliable measurement results quickly without waiting for extensive laboratory analyses.
Direct insight into quality and compaction
Good compaction of foundation layers is essential for stable and durable road and construction work. With in-situ measurements you check whether applied materials meet the set standards and specifications.
The advantages of in-situ density measurements:
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Direct insight into the quality of work performed
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Compliance with guidelines and requirements
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Time and cost savings through rapid on-site measurements
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Choice between high accuracy or fast execution
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Reliable substantiation for quality control and delivery
What measurement methods are available?
Sand replacement method
This manual method is highly accurate and ideal for smaller areas or situations where precision is essential. A sample is taken using a fixed-volume ring and then the moisture content and dry density are determined in the laboratory.
Nuclear measurement method
In this method, a nuclear probe is used to quickly and reliably measure the density and moisture content of the material. The measurement is non-destructive and provides immediate results.
Because of its speed and representative accuracy, this method is recommended by CROW for larger surfaces.
Measuring is knowing in foundation layers
Correct compaction prevents subsidence, damage and additional maintenance costs. Therefore, it is important to check foundation layers timely and accurately. With in-situ density measurements you get certainty about the performance of the applied materials and avoid surprises during or after project execution.
Sustainable infrastructure
Reliable compaction measurements are the basis for safe and sustainable infrastructure projects. By checking foundation layers in time, you avoid uncertainties and improve the quality of execution and delivery. Together, we provide measurement results you can build on.
Would you like to know more about in-situ density measurements?
Frequently Asked Questions
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In-situ density measurements verify the compaction of sand layers and foundation materials directly on site.
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Proper compaction prevents subsidence, damage and structural and road stability problems.
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Depending on the project, either the sand replacement method or the nuclear measurement method are used.
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The nuclear method provides fast results, is non-destructive and is suitable for larger areas.
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This method is mainly used when a very accurate measurement is needed or for smaller measurement areas.
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Yes. The measurement methods comply with applicable guidelines and quality requirements, including CROW.
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With the nuclear method, results are readily available. For the sand replacement method, additional laboratory testing follows.