Citation

Canosa G, Alfieri PV, Giudice CA. J. Fire Sci. 2011; 29(5): 431-441.

Copyright

(Copyright © 2011, SAGE Publishing)

DOI

10.1177/0734904111404652

PMID

unavailable

Abstract

Aqueous solutions of nano lithium silicates with 5.5/1.0 and 7.5/1.0 silica/alkali molar ratios were used to impregnate Pinus radiata. To obtain these impregnants, a solution of 3.5/1.0 SiO₂/Li₂O molar ratio was used; this ratio was increased with nanosilica solution. The impregnations were realized using Bethell process. The curing was made with dibutylamine phosphate, a divalent cation and both chemicals used sequentially. Panels were tested in oxygen index (OI) chamber and two-foot tunnel. The statistical interpretation indicates that the best economical and technical performance was reached with impregnant of the highest silica content and with zinc cation for curing.