Minimum Reinforcement Reduction for Slow-Curing Concrete

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In the case of using the slow‑curing concrete (usually for thick components), you can reduce the calculated minimum reinforcement by a factor of 0.85 to apply the load due to restraint, according to EN 1992‑1‑1, Section 7.3.2. However, a precondition for reduction is that the characteristic value of the strength development r = fcm2 / fcm28 does not exceed 0.3. Other key requirements for the application of this reinforcement reduction are explicitly specified in final planning documents.

Reduction of the minimum reinforcement is regulated only in the national application documents for Germany and Austria.For other countries using Eurocode 2 for reinforced concrete design, this reinforcement reduction is not provided. Therefore, it is possible to apply the minimum reinforcement reduction in RF‑CONCRETE or CONCRETE only if you select one of the following National Annexes:

  • DIN EN 1992‑1‑1/NA: 2013‑04 (Germany)
  • ÖNORM B 1992‑1‑1:2011‑12 (Austria)

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