What is a potential consequence of using excess water in concrete mixing?

Using excess water in concrete mixing can lead to reduced durability, which is a critical concern in construction. When too much water is added, it can dilute the cement paste and lead to a lower cement-to-water ratio. This imbalance compromises the strength of the concrete, making it more susceptible to cracking, shrinkage, and environmental damage over time.

Additionally, excess water can contribute to increased porosity within the cured concrete, leading to a higher permeation of harmful substances such as chlorides and sulfates. This can exacerbate issues like corrosion of reinforcing steel and the overall degradation of the concrete matrix. Therefore, maintaining the correct water content is vital for ensuring the longevity and structural integrity of concrete structures.