Table 8 Predicted modulus of elasticity of concrete.

From: Microstructural evolution and mechanical property enhancement of red mud incorporated high strength concrete

Mixes

Compressive strength (fc)

Density (\(\rho\)) (kg/m3)

Modulus of elasticity (Ec) GPa

Experimental data

ACI318*

AS3600**

Present study***

B0RM

82.2

2395

43.57

45.69

39.89

51.73

B5RM

83.8

2381

44.12

45.73

39.79

51.7

B10RM

87.7

2372

45.97

46.52

40.15

52.51

B15RM

84.12

2365

45.34

45.36

39.43

51.28

B20RM

82.8

2354

43.85

44.69

38.96

50.56

  1. * ACI-318: \(\:{\text{E}}_{\text{C}}=0.043\times\:{{\uprho\:}}^{1\cdot5}\times\:\sqrt{{\text{f}}_{\text{C}}}\).
  2. **AS 3600: \(\:{\text{E}}_{\text{C}}={{\uprho\:}}^{1\cdot5}(0.0243\sqrt{{\text{f}}_{\text{C}}}+1\cdot\:2)\).
  3. ***Present study: \(\:{\text{E}}_{\text{C}}={{\uprho\:}}^{1\cdot5}(4.5401\sqrt{{\text{f}}_{\text{C}}}+2.9547)\).
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