What is the primary purpose of taking core samples?

The primary purpose of taking core samples is to ensure proper density and quality control. Core sampling involves extracting cylindrical sections of material from a constructed road, which allows engineers and quality assurance professionals to assess the physical properties of the pavement, including its density, layer thickness, and overall material quality. This information is crucial for verifying that the pavement was constructed according to specifications and designed standards, which directly impacts the durability and service life of the roadway.

Evaluating density is particularly important because it can affect the strength and performance of the pavement under traffic loads. If the density is not within acceptable limits, it may indicate issues such as improper compaction or material segregation, which could lead to premature pavement failure. Therefore, core samples provide essential data needed to maintain quality control in roadway construction and ensure that the infrastructure will perform as intended over time.