Avaliação da influência do tipo de cimento na expansibilidade das misturas de fosfogesso e cimento

Authors

  • Andréa Regina Kaneko Kobayashi
  • Alexandre Benetti Parreira

DOI:

https://doi.org/10.14295/transportes.v9i2.171

Abstract

Fosfogesso é um resíduo sólido da produção de ácido fosfórico pelas indústrias de fertilizantes. Geram-se cerca de 180 milhões de toneladas deste resíduo por ano no mundo, causando problemas com a sua armazenagem. Este trabalho apresenta um resumo dos resultados de ensaios laboratoriais para avaliar a influência do tipo de cimento Portland na expansibilidade das misturas de fosfogesso e cimento para uso como material de construção de bases e sub-bases de pavimentos. A expansão foi medida em corpos de prova, compostos com diferentes proporções de fosfogesso e cimento, variando-se o tipo de cimento, a energia de compactação e o período de cura. Para todas as misturas investigadas, considerando-se o período de 84 dias de cura, a maior parte da expansão ocorreu nos primeiros 28 dias. Concluiu-se que a influência do tipo de cimento é significante na expansão destas misturas.

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Published

2001-07-02

How to Cite

Kobayashi, A. R. K., & Parreira, A. B. (2001). Avaliação da influência do tipo de cimento na expansibilidade das misturas de fosfogesso e cimento. Transportes, 9(2). https://doi.org/10.14295/transportes.v9i2.171

Issue

Vol. 9 No. 2 (2001)

Section

Articles

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