Question
Download Solution PDFHow does the age of concrete affect its compressive strength?, consider the age limit as 28 days with continued curing.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Effect of Age on Compressive Strength of Concrete
- Concrete gains strength over time as it undergoes the process of hydration, where the cement reacts with water to form a hard matrix that binds the aggregates together.
- The rate of strength gain is rapid in the early days after casting and gradually decreases over time.
- Standard practice measures the compressive strength of concrete at specific intervals, with 28 days being the most commonly used reference point for specifying the strength of concrete.
Important Points
- Compressive strength of concrete increases with age as long as there is continued curing and moisture is available for hydration.
- Most of the strength gain occurs within the first 28 days, but the concrete continues to gain strength at a slower rate beyond this period.
- Continued curing and proper moisture conditions facilitate ongoing hydration, leading to further strength gain over time.
Last updated on May 28, 2025
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