What role does moisture content play in aggregate performance?

Moisture content plays a crucial role in aggregate performance, primarily impacting workability and mix proportions. When aggregates are mixed with water, the right moisture content ensures that the mixture is workable, allowing for proper handling and placement during construction.

If aggregates are too dry, they can absorb water from the mix, leading to insufficient water for hydration, which adversely affects the strength and durability of the concrete. Conversely, if the aggregates are too wet, it can lead to excess water in the mix, which negatively impacts the concrete's overall performance, potentially causing issues such as segregation and insufficient strength development.

Thus, managing moisture content is essential for achieving optimal workability and accurate mix proportions, which ultimately influences the quality of the finished product.