Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Venkatesh Chava

Makale detayları

Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Yazarlar:

Venkatesh Chava

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Material Production Technologies

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 4, pp.297-306

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001305380

pISSN:

2458-973X

Anahtar kelimeler:

Özet:

 Red mud RM, a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 C for 06 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10 calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength 46.27 MPa and strength activity index 117.24. SEM confirmed improved C-S-H gel formation with 2-hour calcined RM. In summary, calcining RM optimally at 600 C for 2 hours allows its effective use as a sustainable cementitious material, providing environ- mental and technical benefits of RM utilization in cement composites.

 Red mud RM, a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 C for 06 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10 calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength 46.27 MPa and strength activity index 117.24. SEM confirmed improved C-S-H gel formation with 2-hour calcined RM. In summary, calcining RM optimally at 600 C for 2 hours allows its effective use as a sustainable cementitious material, providing environ- mental and technical benefits of RM utilization in cement composites.

 Red mud RM, a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 C for 06 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10 calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength 46.27 MPa and strength activity index 117.24. SEM confirmed improved C-S-H gel formation with 2-hour calcined RM. In summary, calcining RM optimally at 600 C for 2 hours allows its effective use as a sustainable cementitious material, providing environ- mental and technical benefits of RM utilization in cement composites.

 Red mud RM, a by-product of aluminum production, poses environmental concerns with its disposal. This study explored calcining RM at 600 C for 06 hours to utilize it as a cement substitute. Calcination up to 2 hours decreased particle size and increased surface area due to moisture loss, while further calcination reversed these effects. XRF analysis showed high Fe2O3, Al2O3, SiO2 contents. XRD revealed goethite transformed to hematite and gibbsite to alumina. SEM images displayed a loose then denser structure over time. 10 calcined RM incorporated into cement showed 2-hour calcined RM exhibited optimal properties, including high strength 46.27 MPa and strength activity index 117.24. SEM confirmed improved C-S-H gel formation with 2-hour calcined RM. In summary, calcining RM optimally at 600 C for 2 hours allows its effective use as a sustainable cementitious material, providing environ- mental and technical benefits of RM utilization in cement composites.

Makale detayları

Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Yazarlar:

Venkatesh Chava

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Material Production Technologies

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 4, pp.297-306

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001305380

pISSN:

2458-973X

Compressive strength

Particle analyzer

red mud

Strength activity index

X-ray diffraction analysis

Sayı

Makale detayları

Effect of calcination on the physical, chemical, morphological, and cementitious properties of red mud

Yazarlar: Venkatesh Chava

Yayıncı: Yildiz Technical University

Ana Başlıklar: Material Production Technologies

Dergi: Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 4, pp.297-306

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: İngilizce

Document ID (Org No.): 2001305380

pISSN: 2458-973X

Compressive strength

Particle analyzer

red mud

Strength activity index

X-ray diffraction analysis

Sayı

Yazarlar:

Venkatesh Chava

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Material Production Technologies

Dergi:

Journal of Sustainable Construction Materials and Technologies Vol.8 Issue 4, pp.297-306

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

İngilizce

Document ID (Org No.):

2001305380

pISSN:

2458-973X