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1x
001802
2025-01-08

Loading age t0

t0 = t0, T  · 1 + 92 + t0, T1.2α ≥ 0.5

t0

Effective age of concrete when load application starts, taking the influence of temperature into account

α

Exponent depending on type of cement:

  1. -1: Slow-hardening cements (S) (32,5)
  2. 0: Normal- or rapid-hardening cements (N) (32.5 R; 42.5)
  3. 1: Rapid-hardening, high-strength cements (R) (42.5 R; 52.5)
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