What does an increased CBR value indicate regarding aggregate suitability?

An increased California Bearing Ratio (CBR) value indicates higher load-bearing capacity of the aggregate material. CBR is a test used to evaluate the strength and quality of subgrade and subbase materials in road construction and other civil engineering applications.

When the CBR value is higher, it means that the material can support greater loads without failing, making it more suitable for use in roadways, parking lots, and other applications where structural integrity is crucial. Essentially, a higher CBR reflects an enhanced ability of the aggregate to withstand deformation and apply its strength under load conditions. This measurement is pivotal in determining the design and thickness of pavement layers, ensuring safety and longevity in construction projects.