Coal fly ash-containing sprayed mortar for passive fire protection of steel sections

Authors

  • L. F. Vilches Universidad de Sevilla
  • C. Leiva Universidad de Sevilla
  • J. Olivares Universidad de Sevilla
  • J. Vale Universidad de Sevilla
  • C. Fernández Universidad de Sevilla

DOI:

https://doi.org/10.3989/mc.2005.v55.i279.196

Keywords:

coal fly ash, mortars, passive fire protection, steel sections, gunning

Abstract


The present article addresses the possible use of coal fly ash as the chief component of sprayed mortars to fireproof steel structures. A pilot wet-mix gunning rig was specifically designed and built to spray different pastes on to sheet steel and sections with different surface/volume ratios. After gunning, the specimens were placed in a furnace and subjected to standard fire resistance testing. Product fire resistance was calculated from the test results. The mortar used in this study, with a high fly ash content, was found to have acceptable mechanical properties as well as afire resistance potential comparable to those of commercial passive fire protection products.

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Published

2005-09-30

How to Cite

Vilches, L. F., Leiva, C., Olivares, J., Vale, J., & Fernández, C. (2005). Coal fly ash-containing sprayed mortar for passive fire protection of steel sections. Materiales De Construcción, 55(279), 25–37. https://doi.org/10.3989/mc.2005.v55.i279.196

Issue

Section

Research Articles