Early age hydration of cements containing ye’elimite (YCC) produced with spent catalyst (SFCC)

Authors

  • Samile Raiza Carvalho Matos Universidade Federal da Bahia
  • José da Silva Andrade neto Universidade do Estado de Santa Catarina
  • Paulo Ricardo de Matos Universidade do Estado de Santa Catarina
  • Ana Paula Kirchheim
  • Jardel Pereira Gonçalves Universidade Federal da Bahia

Keywords:

Calcium sulfoaluminate cement, Waste, Spent equilibrium catalyst, Clinker, Hydration.

Abstract

Given the environmental impacts associated with the production of conventional Portland cement, the study of special cements with reduced environmental impact has been a trend. In this context, cements containing ye'elimite (YCC) stand out due to their low CO2 emissions. Despite the environmental advantages, the high demand for aluminum economically limits the production of these cements. An alternative to making its production feasible is using residual raw materials as a source of Al2O3, such as SFCC (spent fluidized catalytic cracking). In view of this, this work aims to evaluate hydration at the initial age of cements. For this, six clinkers were produced with different ye'elimite contents, with and without SFCC. These were characterized by XRD/Rietveld. The pastes were evaluated by TG/DTG and XRD/Rietveld to understand the hydration mechanism on the third day of these cements. It was possible to synthesize the main phases of YCC, in clinkers with and without SFCC. In addition, at the age evaluated, the pastes with and without SFCC presented comparable phase composition, indicating the potential for co-processing this residue.

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Published

2024-01-11

How to Cite

MATOS, S. R. C.; ANDRADE NETO, J. da S.; MATOS, P. R. de; KIRCHHEIM, A. P.; GONÇALVES, J. P. Early age hydration of cements containing ye’elimite (YCC) produced with spent catalyst (SFCC). Ambiente Construído, [S. l.], v. 24, 2024. Disponível em: https://seer.ufrgs.br/index.php/ambienteconstruido/article/view/131379. Acesso em: 24 jun. 2025.

Issue

Vol. 24 (2024): Edições Especiais & Artigos

Section

Ambiente Construído: resiliente e sustentável

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ISSN 1678-8621

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