How can extreme temperatures impact aggregate properties?

Extreme temperatures can indeed have a significant effect on the moisture content and physical properties of aggregates. When aggregates are exposed to high temperatures, any moisture present can evaporate, leading to a change in the moisture content. This loss of moisture can also affect the efficiency of the binding materials (like asphalt or cement) in a mixture, potentially impacting the overall performance of the final product.

Conversely, low temperatures can cause frost to form within the particles of the aggregate or even result in freeze-thaw cycles that can weaken and fracture the material. This physical change can affect the integrity and durability of the aggregate over time, making it less effective in construction applications.

Therefore, understanding how temperature variations can alter aggregate properties is crucial for ensuring the quality and longevity of construction materials.