From: Strength and Durability Evaluation of Recycled Aggregate Concrete
Mix | Unit weight kg/m3 | Slump/flow (cm) | Air content % | \( f_{c}^{\prime} \) | Split tensile f ct | Modulus of rupture | RCPT | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
f ct (Mpa) | \( f_{ct} /f_{c}^{\prime} \) (%) | Equation 1 | Equation 2 | fr (Mpa) | \( \frac{{f_{\text{r}} }}{{\left( {f_{c}^{\prime} } \right)^{0.5} }} \) | Equation 3 | Equation 4 | Coulombs | Class | |||||
2,5 | 2187 | 52 Flow | 3.3 | 47.68 | 2.8 | 5.90 | 3.11 | 2.96 | 5.61 | 0.81 | 4.83 | 5.17 | 3965 | Moderate |
1,2,5 | 2317 | 59 Flow | 3.9 | 46.90 | 3.5 | 7.41 | 3.08 | 2.93 | 6.9975 | 1.02 | 4.79 | 5.14 | 2214 | Low |
4 | 2085 | 52 Flow | 3.3 | 40.89 | 3.0 | 7.46 | 2.88 | 2.67 | 5.67 | 0.89 | 4.48 | 4.80 | 4508 | High |
1,4 | 2194 | 49 Flow | 2.3 | 51.89 | 2.6 | 5.02 | 3.24 | 3.13 | 5.4225 | 0.75 | 5.04 | 5.40 | 3436 | Moderate |
1,5 | 2172 | 49 Flow | 4.3 | 50.80 | 2.34 | 4.61 | 3.21 | 3.08 | 6.345 | 0.89 | 4.99 | 5.35 | 5573 | High |
1,4,5 | 2143 | 14 Slump | 3.5 | 42.24 | 3.2 | 7.59 | 2.92 | 2.73 | 4.455 | 0.69 | 4.55 | 4.87 | 4385 | High |
Control | 2338 | 58 Flow | 3.1 | 51.85 | 3.0 | 5.78 | 3.24 | 3.12 | 6.57 | 0.91 | 5.04 | 5.40 | 2007 | Low |