You are in the accessibility menu

Please use this identifier to cite or link to this item:
Use of slag/sugar cane bagasse ash (SCBA) blends in the production of alkali-activated materials
  • Universidade Estadual Paulista (UNESP)
  • Universitat Politècnica de València
Blast furnace slag (BFS)/sugar cane bagasse ash (SCBA) blends were assessed for the production of alkali-activated pastes and mortars. SCBA was collected from a lagoon in which wastes from a sugar cane industry were poured. After previous dry and grinding processes, SCBA was chemically characterized: it had a large percentage of organic matter (ca. 25%). Solutions of sodium hydroxide and sodium silicate were used as activating reagents. Different BFS/SCBA mixtures were studied, replacing part of the BFS by SCBA from 0 to 40% by weight. The mechanical strength of mortar was measured, obtaining values about 60 MPa of compressive strength for BFS/SCBA systems after 270 days of curing at 20 °C. Also, microstructural properties were assessed by means of SEM, TGA, XRD, pH, electrical conductivity, FTIR spectroscopy and MIP. Results showed a good stability of matrices developed by means of alkali-activation. It was demonstrated that sugar cane bagasse ash is an interesting source for preparing alkali-activated binders. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Issue Date: 
Materials, v. 6, n. 8, p. 3108-3127, 2013.
Time Duration: 
  • Alkali-activation
  • Microstructure
  • Slag replacement
  • Strength development
  • Sugar cane bagasse ash
  • Waste valorization
  • Activating reagents
  • Alkali activation
  • Alkali-activated binder
  • Electrical conductivity
  • Micro-structural properties
  • Sugar cane bagasse ashes
  • Waste valorizations
  • Blast furnaces
  • Compressive strength
  • Electric properties
  • Fourier transform infrared spectroscopy
  • Mortar
  • Silicon compounds
  • Slags
  • Sugar cane
  • Binders
Access Rights: 
Acesso aberto
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.