INFLUENCE OF SYNTHESIS FACTORS ON PROPERTIES OF GEOPOLYMERS BASED ON RED MUD AND RICE HUSK ASH

Authors

  • Tran Ngoc Tuyen Department of Chemistry, College of Sciences, Hue University
  • Nguyen Duc Vu Quyen Department of Chemistry, College of Sciences, Hue University
  • Ho Van Minh Hai Department of Chemistry, College of Sciences, Hue University
  • Dang Xuan Tin Department of Chemistry, College of Sciences, Hue University
  • Tran Ngoc Quang Department of Environmental Science, College of Sciences, Hue University

DOI:

https://doi.org/10.15625/2525-2518/55/4/9262

Keywords:

red mud, rice husk ash, geopolymerization

Abstract

In this paper, the effect of mixing ratio of raw materials, curing temperature and time on geopolymerization between red mud and rice husk ash were investigated. The results showed that the optimum conditions were SiO2/Al2O3 ratio of 4 and Na2O/Al2O3 ratio of 2.0, curing temperature of 100oC and curing time of 24 hours. The compressive strength, bulk density, total shrinkage of the obtained product were 22.8 MPa, 2.39 g.cm-3, 15%, respectively that met requirement of unsintered bricks using for construction.

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Published

2017-08-11

Issue

Section

Materials