Alkali activated lightweight mortars, obtained by room temperature activation of coal fly ash, were studied as passive fire protection systems for steel elements. Physical, mechanical and thermal properties were investigated as a function of the compositional Si/Al molar ratio and of the amount of lightweight aggregate and foaming agent. Experimental findings were used as input data to assess their fire resistance by finite volume simulations. Results pointed out that the optimized alkali activated lightweight mortars are able to outperform alternative commercial cement-based mortars, thus representing a promising technology.

Alkali activated lightweight mortars for passive fire protection: A preliminary study

Carabba, Lorenza
;
Moricone, Raffaela;Scarponi, Giordano Emrys;Tugnoli, Alessandro;Bignozzi, Maria Chiara
2019

Abstract

Alkali activated lightweight mortars, obtained by room temperature activation of coal fly ash, were studied as passive fire protection systems for steel elements. Physical, mechanical and thermal properties were investigated as a function of the compositional Si/Al molar ratio and of the amount of lightweight aggregate and foaming agent. Experimental findings were used as input data to assess their fire resistance by finite volume simulations. Results pointed out that the optimized alkali activated lightweight mortars are able to outperform alternative commercial cement-based mortars, thus representing a promising technology.
2019
Carabba, Lorenza*; Moricone, Raffaela; Scarponi, Giordano Emrys; Tugnoli, Alessandro; Bignozzi, Maria Chiara
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/672089
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