Concrete Manual Tests: Concrete Age-Strength Relationship Mobile App
Concrete strength varies with age.
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Under continuous favorable conditions, concrete continues to gain strength indefinitely. Samples of concrete taken from old pavements and tested in compression indicate higher strengths after 25 years than when the pavement was 1 to 3 years old. Tests for concrete strength are made shortly after it has been placed (7 to 90 days). It is always tested for acceptance at fairly early ages with respect to the concrete life and for this reason the strength obtained is less than the ultimate strength the concrete will attain. The Concrete Manual Tests: Concrete Age-Strength Relationship mobile app is is designed to assist with age strength testing.