Table 1 Chemical Composition of Wood Ash, Crumb Rubber, Crushed Glass, Cement, Sand, and Gravel.
From: Effects of recycled waste on the modulus of elasticity of structural concrete
Composition | % WA | % CR | %CG | % Cement | % Sand | % Gravel |
|---|---|---|---|---|---|---|
SiO2 | 37.86 | 26.5 | 72.61 | 21.20 | 98.20 | 12.0 |
Al2O3 | 13.24 | 8.7 | 1.38 | 4.60 | 0.28 | 4.5 |
Fe2O3 | 6.91 | 9.3 | 0.48 | 1.80 | 0.10 | 3.0 |
CaO | 18.83 | 12.9 | 11.70 | 61.70 | 0.28 | 55.8 |
MgO | 4.11 | 6.4 | 0.56 | 4.30 | 0.03 | 1.0 |
Na2O | 1.39 | 1.4 | 13.12 | 0.03 | 0.2 | |
K2O | 2.36 | 1.1 | 0.38 | 0.01 | 0.2 | |
SO3 | 1.6 | 0.09 | 2.00 | 0.07 | ||
TiO2 | 1.0 | 0.02 | ||||
Ci | 0.1 | |||||
Zn | 20.2 | |||||
Loss on ignition | 15.3 | 10.8 | 0.22 | 4.40 | 0.98 | 23.3 |
