Bauxite Residue (BR)

Basic Information

SREWay code207
Name

Bauxite Residue (BR)

Is PublicYes
Uploaded by(not set)
Critically AssessedNo
Resource CategoryWASTES RESULTING FROM EXPLORATION, MINING, QUARRYING, AND PHYSICAL AND CHEMICAL TREATMENT OF MINERAL / wastes from physical and chemical processing of metalliferous minerals / red mud from alumina production other than the wastes mentioned in 01 03 07 (EEA code: 01.03.09)
Category TypeOther Residue
Background informationFine-grained residue from the Bayer process used to produce alumina from bauxite; rich in Fe, Al, Si oxides and inherently alkaline. Used here as precursor in alkali-activated and hybrid binders.
LocationAg. Nikolaos Viotia, Greece
Location Longitude(not set)
Location Latitude(not set)
SourceGreek aluminum deposit area (alumina refinery)
CommentsLow intrinsic reactivity; mechanical milling and blending with OPC or GGBFS improves performance.

Chemistry

Fe2O3 - 45 wt%
Al2O3 - 19 wt%
CaO - 11 wt%
SiO2 - 10 wt%
TiO2 - 6 wt%
Na2O - 5 wt%
MgO - 1 wt%
K2O - 1 wt%
Others: 2 wt%

Density

True density: 3.1 g/cm3

Measurements

References

Kriskova, L., Ducman, V., Loncnar, M., Tesovnik, A., Žibret, G., Skentzou, D., & Georgopoulos, C. (2025). Alkali-Activated Mineral Residues in Construction: Case studies on bauxite residue and steel slag pavement tiles. Materials, 18(2), 257. https://doi.org/10.3390/ma18020257