Evaluation of physical-chemical interaction of bauxite residue and Portland cement

• Grant number: 12/19262-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: April 01, 2013
• End date: March 31, 2016
• Field of knowledge: Engineering - Civil Engineering - Construction Industry
• Principal Investigator: Maria Alba Cincotto
• Grantee: Roberto Cesar de Oliveira Romano
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

In the present days, many researchs are carried out in the civil construction sector based on the sustainability concepts because concrete is the non-renewable product with more consumption in the world. So, the industry of cement is under pressures to reduce the CO2 emissions, being responsible, today, to up to 7% of total global emissions. Following the same idea, the bauxite residue generation is growing up because the aluminum production is increasing worldwide and this residue is still discarded in the mud lakes causing considerable environmental impacts. A recent example occurred in Hungary in 2010 when the disruption of the retaining wall of mud caused the spill residue, resulting in a major environmental disaster. At least 3 cities were affected and many people infected. So, as is needed to reduce de cement consumption and to develop a large scale application to BR, the utilization of bauxite residue as cement supplementary material may be an interesting alternative to reduce the environmental impact caused by both, being this idea, the main objective of this work. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE OLIVEIRA ROMANO, ROBERTO CESAR; BERNARDO, HEITOR MONTEFUSCO; MACIEL, MARCEL HARK; PILEGGI, RAFAEL GIULIANO; CINCOTTO, MARIA ALBA. Using isothermal calorimetry, X-ray diffraction, thermogravimetry and FTIR to monitor the hydration reaction of Portland cements associated with red mud as a supplementary material. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 137, n. 6, p. 1877-1890, SEP 2019. (12/19262-2)

ROBERTO CESAR DE OLIVEIRA ROMANO; JOSÉ AUGUSTO FERREIRA SALES DE MESQUITA; HEITOR MONTEFUSCO BERNARDO; DANILO AGUIAR NIZA; MARCEL HARK MACIEL; MARIA ALBA CINCOTTO; RAFAEL GUILIANO PILEGGI. Avaliação combinada de reometria oscilatória e calorimetria isotérmica para o monitoramento do estágio de endurecimento de composições de cimento Portland misturadas com resíduos de bauxita do processo Bayer coletados em diferentes locais no Brasil. Rev. IBRACON Estrut. Mater., v. 14, n. 2, 2021-01-25. (12/19262-2)

SILVEIRA, L. M. V.; MACIEL, M. H.; MESQUITA, J. A. F. S.; CINCOTTO, M. A.; ROMANO, R. C. O.; PILEGGI, R. G.. Hydration and chemical shrinkage of Portland cement with bauxite residue from Bayer process. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v. 148, n. 14, p. 15-pg., 2023-05-06. (12/19262-2)