How soon must the core samples be taken after the original sample?

The requirement to take core samples within 2 calendar days after the original sample is emphasized to ensure that the material being tested retains its original characteristics and properties. This timeframe is crucial for accurately assessing the quality and performance of the roadway materials.

Taking samples too long after the original collection can lead to changes in the material due to environmental factors, degradation, or other influences that can alter its properties. Sampling within the specified 2-day window helps maintain the integrity of the data and offers reliable results for quality management and assurance in roadway construction and maintenance practices.

The other timeframes suggested might be too lenient, allowing for material changes that could negatively affect the assessment process. Thus, adhering to the 2 calendar days standard ensures that the information collected from the core samples aligns closely with the original sample characteristics.