Auteurs: Nadjette Rehamnia1, Mohamed Fouzi Habita1, Fouzia Bouabdallah2 & Noureddine Ferhoune2
1 Laboratoire Génie Civil, Département de Génie Civil, Faculté des Sciences de l’Ingénieur, Université Badji Mokhtar, BP 12, Annaba, 23000, Algérie.
2 Département de Génie Civil, Faculté des Sciences et Sciences Appliquées, Université Larbi Ben M’hidi, BP 358, Oum El Bouaghi OEB, Algérie.
Soumis le : 23 /10/2017 Révisé le : 03/05/2018 Accepté le : 20/05/2018
Abstract
The Alkali-Aggregate-Reaction pathology (AAR) over time destroys concrete constructions in the civil engineering field, because of an expansive solid gel that leads to interstitial pressure until cracking and checking-cracks.This article shows a six-month search for the ACR effects on concrete samples « (A) control and (B, C) affected by ACR « . Damage symptoms were observed microscopically, chemically and physico-mechanically. Significant results have been analyzed in ACR concrete such as: discoloration, aureole, swelling, chemical components, etc.
Key words: Concrete, Aggregate , Alkali, Reaction, Carbonate.