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Table 2 RCA material tests (by Kang et al. 2012).

From: Recycled Concrete Aggregates: A Review

Concrete fc (MPa) Reduction in fc (%) fct (MPa) Reduction in fct (%) fr (MPa) Reduction in fr (%)
RCA 0 % 38.6 3.3 10.2
RCA 15 % 32.7 15 3 9 9.7 5
RCA 30 % 31.7 18 2.7 18 9.0 12
RCA 50 % 29.0 25 2.7 18 8.9 13
  1. f′ c compressive strength; f ct splitting tensile strength; f r modulus of rupture.