Economic and Environmental Geology

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Table. 1.

Table. 1.

The chemical properties of portland cement and waste concrete powder

Type Particle size(mm) Chemical composition (wt%) References
CaO SiO2 Al2O3 Fe2O3 MgO SO3 Others LOI
Portland cement - - 63.3 24.7 5.8 2.5 2.0 1.5 0.1 - Yeon et al., 2008
61.6 21.4 4.7 3.5 2.3 2.1 - 2.9 Mun et al., 2017
Waste cement powder Paste material < 0.15 62 21.3 5.4 3.5 3.3 1.64 - 1.0 Oh, 2005
< 0.15 56.7 17.2 4.5 2.5 2.4 1.0 - - Ahn and Park, 2013
- 56.5 17.9 3.8 3.1 1.9 1.6 - 14.1 Mun et al., 2017
Recycled aggregate < 1 12.2 68.5 10 4 0.8 - - Min et al., 2009
< 0.15 22.8 39.4 10.1 2.3 1.8 - - Ahn and Park, 2013
> 20 25.3 35.6 8.7 18.3 - - 12.1 - Shin et al., 2013
5-20 36.8 28.9 6.7 15.9 - - 11.6 -
2.5-5 40.1 28.2 7.4 13.4 - - 11.0 -
0.4-2.5 44.2 26.1 7.0 12.5 - - 10.2 -
< 0.4 50.4 21.6 5.9 13.0 - - 9.0 -
- 24.1 48.8 12.8 4.8 2.3 1.2 6.35 - Kim et al., 2015
- 26.2 49.1 8.3 2.0 1.6 1.0 9.7 Mun et al., 2017
- 14.3 57.1 10.8 5.4 1.9 1.0 9.51 4.2 Jeong et al., 2017
Econ. Environ. Geol. 2021;54:285-97 https://doi.org/10.9719/EEG.2021.54.2.285
© 2021 Econ. Environ. Geol.