Alkali activated mortars formulation optimized by an experimental design

Sylvain Louvel (1) , Mariane Audo (1) , Nassim Sebaibi (1) , Mohamed Boutouil (1) , Moussa Gomina (2)

1 ESITC Caen - École Supérieure d'ingénieurs des Travaux de la Construction
2 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

The worksites of "Grand-Paris" will generate high amounts of excavated lands, without few recovery routes. One of them could be to use those excavated lands into alkali activated materials, based on ground granulated blast furnace slag. The study herein presented concerns the feasibility of using various untreated soils originating from Normandy (France) as the granular skeleton in alkaline activated granulated blast furnace slag-based mortars. The use of experimental designs allowed to optimize the binding phase, by varying the composition of the activation solution, for sand and slag-based mortars. The impact of hardened properties of materials was thus studied.

Mots clés: Alkali activated concrete; Untreated soils; Ground granulated blast furnace slag (GGBFS); Experimental design

Domaines: Génie civil

Sylvain Louvel, Mariane Audo, Nassim Sebaibi, Mohamed Boutouil, Moussa Gomina. Alkali activated mortars formulation optimized by an experimental design. 37èmes Rencontres Universitaires de Génie Civil, Jun 2019, Nice, France. pp.69-73. ⟨hal-02394211⟩